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1.
ElShaimaa Mohamed Mohamed 《The Egyptian Journal of Radiology and Nuclear Medicine》2018,49(2):346-351
Aim
To compare the role of chest US and bedside plain chest radiography in the evaluation of intensive care patients having pleural effusion and pneumothorax. Chest computed tomography has been used as an ideal standard.Patients and methods
Sixty critically ill patients with chest troubles and positive CT, were be studied with chest US and bedside CXR .Two pathologic abnormalities were be evaluated: pneumothorax and pleural effusion. Each hemithorax had been examined for the existence or absence of each pathology. All patients had been assessed by clinical examination of chest, full clinical history, laboratory assessment. All patients who had pleural effusion underwent US guided FNAC.Results
One hundred twenty hemithoraces had been investigated by the three imaging techniques. The sensitivity, specificity and diagnostic accuracy of bedside CXR were 54.5, 96 and 83.3% for pneumothorax and 76.2, 70.6 and 75% for pleural effusion, respectively. The corresponding values for chest US were 85.7, 97.9 and 95.2% for pneumothorax and 100, 100, and 100% for pleural effusion, respectively.Conclusions
In evaluation of ICU patients with pleural effusion and pneumothorax, chest US is the first bedside tool with high diagnostic performance. These chest conditions are urgent especially in seriously ill patients, as both need US guided drainage. Chest US has many advantages, including non invasive examination in multiple planes, free of radiation hazard, less expensive, real-time, high sensitivity and diagnostic accuracy in chest lesions detection. Lung ultrasound is being exclusive than bedside chest X-ray and equal to chest CT in diagnosing pleural effusion and pneumothorax. 相似文献2.
Hadeel M. Seif El Dien Dalia A.K. Abd ElLatif 《The Egyptian Journal of Radiology and Nuclear Medicine》2013
Purpose
The aim of this prospective study was to assess lung ultrasonography as an alternative to bedside radiography for the diagnosis of neonatal pneumonia.Patients & methods
The study was performed on 75 neonates admitted during the period from October 2011 to October 2012 in the NICU of Cairo University Pediatric Hospital presenting with clinical picture of pneumonia. Chest X-rays and lung US were done.Results
Chest X-ray findings denoting lung infections were present in 64 cases (85.3%), and the remaining 11 cases (14.6%) had a free chest X-ray. Ultrasonography revealed pneumonic patches in 68 patients (90.6%), 7 (9.3%) had free US scans. US and chest X-rays detected pneumonic patches in 64 cases (85.3%), US detected pneumonic patches in 18 cases (24%) with chest X-rays having signs of chest infections other than pneumonic patches and in 4 cases (5.3%) with clear chest X-rays.Conclusion
Bedside lung ultrasonography is highly sensitive, specific, and reproducible for ruling out underlying pneumonic process as well as in early detection and follow up of possible complications and can be considered an attractive alternative to bedside chest radiography and thoracic computed tomography with minimal radiation exposure. 相似文献3.
Youssriah Y. Sabri Mona A.F. Hafez Khaled M. Kamel Dina A. Abbas 《The Egyptian Journal of Radiology and Nuclear Medicine》2018,49(4):986-992
Objective
to establish the role of transthoracic ultrasound as a bed-side, available, and affordable technique for imaging chest trauma patients and compared its sensitivity, specificity and accuracy for detecting chest trauma sequelae and complications to those of CT.Patients and methods
This study included 107 cases. All patients had chest trauma or polytrauma with chest involvement. Transthoracic ultrasound and MSCT of the chest were evaluated. The results were assessed and compared by statistical analysis.Results
Of the injuries, 13.1% were penetrating, and 86.9% were blunt trauma. With CT as the standard, the most common injury US detected injury was pleural in 60.7% of patients, with diagnostic accuracy of 93.4%. Parenchymal lesions were found in 39.3% of patients with a 64.4% US diagnostic accuracy. Chest wall lesions were found in 15.9% of patients with an 89.7% accuracy, and mediastinal lesions were detected in 9.3% with a 94.3% accuracy.Conclusion
Chest ultrasonography has significant value for diagnosing complications of blunt and penetrating chest trauma with acceptable sensitivity and high specificity, particularly for pleural lesions and rib fractures. Ultrasound overcomes the difficulties involved in radiological examinations of small children and uncooperative patients. 相似文献4.
Ehab A. Abd-ElGawad Mohammed A. Ibraheem Ezzat H. Fouly 《The Egyptian Journal of Radiology and Nuclear Medicine》2013
Objective
To evaluate the sensitivity, specificity and diagnostic accuracy of ultrasonography (US) and magnetic resonance imaging (MRI) in evaluating suspected supraspinatus muscle injury compared with surgery.Subjects and methods
One hundred patients underwent both US and MRI for their shoulders due to shoulder pain. Forty patients with non-improved symptoms underwent surgical exploration. We compared the sensitivity, specificity and accuracy of US and MRI for detection of supraspinatus pathology, using surgical findings as ‘gold standard’.Results
Study included 40 patients (27 men and 13 women, age range from 20 to 68 years). US had sensitivity, specificity and accuracy of 92.3%, 92.6% and 92.5%, respectively in diagnosing partial thickness tears (PTT); 92.6%, 94% and 95%, respectively in diagnosing full thickness tears (FTT). MRI had sensitivity, specificity and accuracy of 84.6%, 92.6% and 90%, respectively in diagnosing partial thickness tears (PTT); 100%, 88.2% and 95%, respectively in diagnosing full thickness tears (FTT). There was no statistically significant difference between the two techniques on one hand and surgery on the other hand in detecting both PTT and FTT.Conclusion
US and MRI yield high sensitivity, diagnostic accuracy in detecting FTT. Regarding PTT rotator cuff tears both tests were less sensitive. 相似文献5.
Doaa Ibrahim Hasan Mohamed Attia Mazrouh Ismail Mohamed Tantawy 《The Egyptian Journal of Radiology and Nuclear Medicine》2010
Objective
To assess the value of dynamic contrast-enhanced magnetic resonance mammography (DCE-MRM) in breast cancer patients treated by conservation breast surgery and radiotherapy.Materials and methods
This prospective study were performed on 20 consecutive female patients, from January 2008 till January 2010 at Zagazig university hospitals. All cases had undergone breast conservative therapy (BCT) at least 9–12 months since the end of radiation therapy up to 5 years. All cases were suspected for either recurrence or post-operative complications by clinical examination in conjunction with mammography or/and US. DCE-MRM was performed at 1.5 T. The findings were correlated with the histopathology in all cases.Results
We found that DCE-MRM accurately revealed the presence or absence, location, and extent of recurrent tumor more accurately than mammography or US. US had high sensitivity and specificity (85.7% and 76.8%) compared to mammography (71.4% and 38.4%, respectively). Seven recurrent cases were found, two of them were multifocal. False-positive contrast enhancement was seen in only one patient pathologically proved as granuloma. MRI showed 95% accuracy, 100% sensitivity, 92.3% specificity with 83% positive predictive value and 100% negative predictive value.Conclusion
The conventional imaging was insufficient to detect the recurrent lesions after BCT, so DCE-MRI should be the imaging modality of choice in detection of the tumoral recurrence, and differentiating it from other complications. One limitation of the DCE-MRM is the persistent false-positive enhancement due to granulation tissue. 相似文献6.
Objectives
To assess the impact of a Picture Archiving and Communication System (PACS) on the diagnostic accuracy of the interpretation of chest radiology examinations in a “real life” radiology setting.Materials and methods
During a period before PACS was introduced to radiologists, when images were still interpreted on film and reported on paper, images and reports were also digitally stored in an image database. The same database was used after the PACS introduction. This provided a unique opportunity to conduct a blinded retrospective study, comparing sensitivity (the main outcome parameter) in the pre and post-PACS periods.We selected 56 digitally stored chest radiograph examinations that were originally read and reported on film, and 66 examinations that were read and reported on screen 2 years after the PACS introduction. Each examination was assigned a random number, and both reports and images were scored independently for pathological findings. The blinded retrospective score for the original reports were then compared with the score for the images (the gold standard).Results
Sensitivity was improved after the PACS introduction. When both certain and uncertain findings were included, this improvement was statistically significant. There were no other statistically significant changes.Conclusion
The result is consistent with prospective studies concluding that diagnostic accuracy is at least not reduced after PACS introduction. The sensitivity may even be improved. 相似文献7.
Aim
To evaluate the diagnostic performance of the combined use of elstosonography (USE) scoring and high-resolution ultrasonography (HRUS) for the differentiation of benign and malignant thyroid nodule.Patients and methods
Forty-seven consecutive patients with 66 thyroid nodules were enrolled in the present study. Thyroid surgery had been already planned for all the patients. All of them were submitted to high-resolution ultrasonography and elastography scoring at the same sitting. The latter was determined with 5-point scoring method. The examination results were compared against pathological findings as the gold standard of reference.Results
The sensitivity, specificity, accuracy, positive predictive, and negative predictive values of HRUS in the differential diagnosis of thyroid nodules were 92.0%, 72.9%, 60.1%, 95.0%, and 63.1%, respectively, while that of ultrasound elastography scoring were 75.4%, 85.5%, 86.7%, 71.4%, and 90.5%, respectively. Combined use of both US techniques resulted in a higher diagnostic performance as it showed 95.4%, 94.8%, 95.2%, 82.3% and 98.8% sensitivity, specificity, accuracy, positive predictive, and negative predictive values, respectively.Conclusions
The use of combined USE and HRS for the differentiation of benign and malignant thyroid nodules resulted in a high diagnostic performance and a significant statistical difference as compared to HRUS or USE alone (P = 0.003). 相似文献8.
Sherif A. Khedr Mohamed A. Hassaan Mohamed H. Allam 《The Egyptian Journal of Radiology and Nuclear Medicine》2013
Purpose
To evaluate the diagnostic value of MDCT angiography in assessment of coronary bypass grafts. We studied 51 patients from April 2008 to October 2011. All patients gave written informed consent, and the study protocol was approved by the Institutional Review Board. 96 grafts including 35 left internal mammary artery (LIMA) grafts, 5 radial artery grafts, and 56 saphenous vein grafts (SVG) were assessed by 64-MDCT and the results were compared with conventional coronary angiography as reference standard.Results
The diagnostic value of multi-detector computed tomography for graft occlusion was: 100% sensitivity, 100% specificity, 100% positive predictive value, and 100% negative predictive value. The diagnostic power of multi-detector computed tomography for stenosis of the graft anastomosis was: 100% sensitivity, 96% specificity, 87.5% positive predictive value, and 100% negative predictive value, and 96.4% accuracy.Conclusion
Multi-detector computed tomography has become an alternative to coronary angiography to diagnose graft occlusion and stenosis after coronary artery bypass. In addition, multidetector CT has the added advantage over traditional angiographic evaluation of simultaneously allowing evaluation for alternate postoperative complications that may also manifest with chest pain and dyspnea, thereby mimicking recurrent angina. 相似文献9.
Nesreen Mohey Tamir A. Hassan Said Abdel-Baki 《The Egyptian Journal of Radiology and Nuclear Medicine》2013
Background
Ultrasonographic (US) examination is an accurate method for detecting thyroid nodules, but its use in differentiating between benign and malignant thyroid nodules is relatively low. US elastography has been applied to study the hardness/elasticity of nodules to differentiate malignant from benign lesions thus deviating a significant group of patients from unnecessary FNAB.Objectives
The aim of the study is to evaluate the validity of combined grey scale US and tissue elastography in differentiating benign form malignant solid thyroid nodules.Methods
The study included 46 selected patients with solid thyroid nodules according to our inclusion and exclusion criteria. The patients underwent surgery for compressive symptoms or suspicion of malignancy on FNA cytology. US features and tissue elastography were scored according to the Rago criteria (1).Results
On US elastography: all the 31 cases with a final diagnosis of benign nodule had a score of 1–3, while 14 of 15 (94.1%) with a final diagnosis of carcinoma had a score of 4–5, with a sensitivity of 93.3%, a specificity of 100% and an accuracy of 97.8%. Combined US and elastography reveals that hypoechogenicity/score 4–5 was most predictive of malignancy with sensitivity 80% and specificity 100%; and accuracy 93.4%.Conclusions
US elastography seems to have great potential as a new tool for differentiating solid thyroid nodules and for recommending FNAC. Combined grey scale US features and US elastography added no significant value when compared with US elastography alone. Further prospective studies are needed. 相似文献10.
Thieme SF Graute V Nikolaou K Maxien D Reiser MF Hacker M Johnson TR 《European journal of radiology》2012,81(2):360-365
Objective
Aims were (1) to determine the diagnostic accuracy of Dual Energy CT (DECT) in the detection of perfusion defects and (2) to evaluate the potential of DECT to improve the sensitivity for PE.Methods
15 patients underwent Dual Energy pulmonary CT angiography (DE CTPA) and a combination of lung perfusion SPECT/CT and ventilation scintigraphy. CTPA and DE iodine distribution maps as well as perfusion SPECT/CT and inhalation scintigrams were reviewed for pulmonary embolism (PE) diagnosis. DECT and SPECT perfusion images were assessed regarding localization and extent of perfusion defects. Diagnostic accuracy of DE iodine (perfusion) maps was determined with reference to SPECT/CT. Diagnostic accuracies for PE detection of DECT and of SPECT/CT with ventilation scintigraphy were calculated with reference to the consensus reading of all modalities.Results
DE CTPA had a sensitivity/specificity of 100%/100% for acute PE, while the combination of SPECT/CT and ventilation scintigraphy had a sensitivity/specificity of 85.7%/87.5%. For perfusion defects, DECT iodine maps had a sensitivity/specificity of 76.7% and 98.2%.Conclusion
DECT is able to identify pulmonary perfusion defects with good accuracy. This technique may potentially enhance the diagnostic accuracy in the assessment of PE. 相似文献11.
Aim of the work
To evaluate the value of real-time ultrasound elastography (RTE) in differentiating benign from malignant breast masses.Materials and methods
This study included, whether palpable or non-palpable, 145 sonographically proven breast masses in 121 patients, imaged by conventional B-mode US, color-flow Doppler US and RTE with histopathological analysis considered as the golden standard reference.Results
Lesions were differentiated into benign and malignant by conventional B-mode US (79; 45.5% and 66; 54.5%, respectively), RTE (80; 55.2% and 65; 44.8% respectively), and histopathology (82; 56.6% and 63; 43.4%, respectively). The mean difference in the mass size was significant between B-mode US and RTE in malignant masses (P = 0.002), while not significant among benign masses (P = 0.153). The B-mode US depicted sensitivity of 92.06%, specificity of 90.24%, PPV of 87.88%, NPV of 93.67% and accuracy of 91.03%, while the RTE showed sensitivity of 98.41%, specificity of 96.34%, PPV of 95.38%, NPV of 98.75% and accuracy of 97.24%.Conclusion
Combined use of RTE can complement conventional B-mode US with improving its diagnostic performance in differentiating breast lesions with subsequent reduction in the rate of unnecessary biopsies in benign lesions. 相似文献12.
David J. Murphy Sinead H. McEvoy Sri Iyengar Gudrun Feuchtner Ricardo C. Cury Carl Roobottom Stephan Baumueller Hatem Alkadhi Jonathan D. Dodd 《European journal of radiology》2014
Objectives
To assess the diagnostic accuracy of standard axial 64-slice chest CT compared to aortic valve image plane ECG-gated cardiac CT for bicuspid aortic valves.Materials and methods
The standard axial chest CT scans of 20 patients with known bicuspid aortic valves were blindly, randomly analyzed for (i) the appearance of the valve cusps, (ii) the largest aortic sinus area, (iii) the longest aortic cusp length, (iv) the thickest aortic valve cusp and (v) valve calcification. A second blinded reader independently analyzed the appearance of the valve cusps. Forty-two age- and sex-matched patients with known tricuspid aortic valves were used as controls. Retrospectively ECG-gated cardiac CT multiphase reconstructions of the aortic valve were used as the gold-standard.Results
Fourteen (21%) scans were scored as unevaluable (7 bicuspid, 7 tricuspid). Of the remainder, there were 13 evaluable bicuspid valves, ten of which showed an aortic valve line sign, while the remaining three showed a normal Mercedes-Benz appearance owing to fused valve cusps. The 35 evaluable tricuspid aortic valves all showed a normal Mercedes-Benz appearance (P = 0.001). Kappa analysis = 0.62 indicating good interobserver agreement for the aortic valve cusp appearance. Aortic sinus areas, aortic cusp lengths and aortic cusp thicknesses of ≥3.8 cm2, 3.2 cm and 1.6 mm respectively on standard axial chest CT best distinguished bicuspid from tricuspid aortic valves (P < 0.0001 for all). Of evaluable scans, the sensitivity, specificity, positive and negative predictive values of standard axial chest CT in diagnosing bicuspid aortic valves was 77% (CI 0.54–1.0), 100%, 100% and 70% respectively.Conclusion
The aortic valve is evaluable in approximately 80% of standard chest 64-slice CT scans. Bicuspid aortic valves may be diagnosed on evaluable scans with good diagnostic accuracy. An aortic valve line sign, enlarged aortic sinuses and elongated, thickened valve cusps are specific CT features. 相似文献13.
Rinaldi P Inchingolo R Giuliani M Di Stasi C De Gaetano AM Maresca G Bonomo L 《European journal of radiology》2012,81(6):1110-1115
Introduction
Main purpose of our study is to demonstrate the spectral and color Doppler ultrasonography (DUS) findings that would indicate hepatic artery stenosis (HAS) after liver transplantation and to report our single center results. Moreover we want to establish role and limits of the different imaging techniques in detecting HAS, proposing a non invasive diagnostic approach and to depict indications and feasibility of endovascular treatment in the single patient.Materials and methods
Our study consisted of 222 patients who underwent liver transplantation between January 1999 and December 2009. DUS findings were correlated with multidetector computed tomography angiography (MDCTA) and angiographic results.Results
HAS occurred in 21 cases (9.5%). In all cases diagnosis was performed by DUS. MDCTA quantified stenosis and showed an overall picture of splanchnic vascularization. Based on DUS and MDCTA data integration, in 9 cases we adopted the “wait and see” strategy. Moreover in 12 cases treatment was considered necessary. For hepatic artery stenosis, use of DUS criteria resulted in a sensitivity of 100% (20/20), a specificity of 99.5% (201/202), a positive predictive value (PPV) of 95% (20/21), and negative predictive value (NPV) of 100% (201/201), and an overall accuracy of 99.5% (221/222).Conclusion
Our study underline the role of DUS in early diagnosis of HAS: repeated evaluation of both direct and indirect signs increases NPV and sensitivity of DUS. 相似文献14.
Comparison of foetal US and MRI in the characterisation of congenital lung anomalies 总被引:1,自引:0,他引:1
Leonor Alamo Olivier Reinberg Yvan Vial François Gudinchet Reto Meuli 《European journal of radiology》2013
Objectives
To compare the accuracy of prenatal ultrasonography (US) to magnetic resonance imaging (MRI) in the characterisation of congenital lung anomalies, and to assess their agreement with final diagnosis. To evaluate the influence of additional MRI information on therapeutic management.Methods
26 prenatal congenital lung anomalies detected consecutively between 2006 and 2012 were retrospectively evaluated. Lesions were initially observed at prenatal US and further investigated with MRI. Prenatal US and MRI imaging findings, and suggested diagnosis were compared with the final diagnosis, obtained from autopsies (4), pathological evaluation following surgical resection (15) and postnatal imaging studies (7).Results
Postnatal diagnoses included 7 congenital pulmonary airway malformations, 8 complex lesions, 7 overinflations, 1 sequestration, 1 bronchogenic cyst, 1 blastoma and 1 bilateral lymphangioma. Suggested prenatal US and MRI diagnosis was correct in 34.6% and 46.2% of patients, respectively, mainly isolated lung lesions with typical imaging findings. Nonspecific imaging findings at US and MRI studies were observed in 38.4% of cases. In 42% of the operated anomalies, pathological dissection revealed the presence of complex anomalies. MRI changed the US diagnosis, but not the further management in 9.7% of the lesions.Conclusions
Prenatal US and MRI showed a high accuracy in the diagnosis of isolated congenital lung lesions with typical imaging findings. However, overall characterisation rates were low, because of both a high percentage of complex lesions and of lesions with nonspecific imaging findings. MRI was better than US in characterising complex lesions, but its additional information did not influence therapy decisions. 相似文献15.
Guinet C Rousset P Bobbio A Alifano M Damotte D Régnard JF Buy JN 《European journal of radiology》2012,81(9):2440-2443
Objective
To assess computed tomography (CT) evaluation of mediastinal nodes in non-small cell lung cancer to predict metastatic involvement by measurement of their axis and surface area in the coronal plane, as compared to standard short-axis measures in the axial plane.Methods
Evaluation of mediastinal nodes was retrospectively performed on CT scans of 100 patients before thoracotomy. In all patients, mediastinal dissection was performed in the appropriate stations (n = 264) according to the side (59 right, 41 left) of the tumor. Measurements of short axis and surface area of the largest node in each dissected station were performed on axial and coronal planes.Results
By using the standard threshold of axial short axis ≥10 mm, sensitivity and specificity were 25% and 98%, respectively. Areas under receiver operating characteristic curves were 0.828 and 0.821 for axial short axis and axial surface area data. For comparison, areas under receiver operating characteristic curves were 0.843 and 0.845 for coronal short axis and coronal surface area data, respectively. So, for a specificity of 98%, sensitivity was 29% for coronal short axis ≥11 mm and 33% for coronal surface area ≥123 mm2. When using axial short axis ≥10 mm or coronal surface area ≥120 mm2, sensitivity was 45%, whereas specificity remained at 96%.Conclusion
Coronal measurements of mediastinal nodes give a slightly albeit non-significant improvement of diagnostic accuracy over axial ones. If both axial short axis and coronal surface area are taken into account, accuracy is improved. 相似文献16.
Ehab A. Abd-ElGawad Mohammed A. Ibraheem Laila Adel M. Samy Ahmed M. Atyia Mahmoud Ragab 《The Egyptian Journal of Radiology and Nuclear Medicine》2013
Objective
The purpose of our study was to evaluate the diagnostic accuracy of multidetector computed tomography angiography (MDCTA) in comparison with digital subtraction angiography (DSA) in patients with long standing diabetes mellitus and chronic lower limb ischemia.Subjects and methods
One hundred patients with long standing DM and chronic limb ischemia underwent both CT angiography and DSA. The distal runoff of each lower limb was divided into 13 arterial segments. The status of each segment was graded as: 1, (normal or less than 10% stenosis); 2, (10–49% stenosis); 3, (50–99% stenosis); 4, occlusion. The effect of calcification on the diagnostic accuracy of CT angiography was evaluated. CTA findings were compared with DSA findings for each arterial segment. The sensitivity and specificity of CT angiography were determined using DSA as the gold standard.Results
A total of 100 patients were included (mean age, 58 years; 70% men). The sensitivity and specificity of CT angiography were significantly affected by the degree of vessel wall calcification, and increase the need for additional imaging.Conclusion
Vessel wall calcifications decrease the diagnostic accuracy of CT angiography in patients with long standing DM and peripheral arterial disease. 相似文献17.
Aim of the work
The aim of this work was to evaluate the value of ultrasound elastography (UE) in differentiating benign versus malignant solid breast lesions discovered in mammography and compare it with grey scale ultrasound (US) and mammography.Methods
From May 2011 to May 2013, 114 solid lesions from 100 consecutive patients discovered during mammography were categorized into benign or malignant by mammography and US and further analyzed with UE. The diagnostic results of the cases were compared with histopathologic findings.Results
Of 114 lesions, 33 were histologically malignant, and 81 were benign. UE was the most specific (95.1%) of the 3 modalities. The accuracy (81.7%) of UE was equal to mammography and was higher than those of US (82.5% and 71.9%, respectively). A combination of UE and US had the best sensitivity (90.9%) and accuracy (93.8%).Conclusions
Ultrasound elastography is useful for breast lesion characterization and is an easier and cheaper method and more specific than mammography or US alone, but it is operator dependent. When combined with US, detection accuracy can be greatly improved and the combination potentially could reduce unnecessary biopsy. 相似文献18.
Khaled Abd AlWahab Abo Dewan Mohamed Mohamed Hefeda Dina Gamal ElDein ElKholy 《The Egyptian Journal of Radiology and Nuclear Medicine》2014
Objective
To estimate the accuracy of 3-dimensional transvaginal ultrasonography (3D-TVUS), hysterosalpingography (HSG) and pelvic magnetic resonance imaging (MRI) in the differentiation between septate and bicornuate uterus.Patients and methods
Thirty-six patients with suspected septate or bicornuate uterus on 2D ultrasound or hysterosalpingography (HSG) underwent 3D-TVUS examination, MR imaging, diagnostic laparoscopy and hysteroscopy. HSG was performed only for those patients who did not undergo the procedure before (21 patients), we retrospectively revised the hysterosalpingography of 15 patients performed outside our hospital with acceptable quality.Results
HSG showed sensitivity of 77.4%, specificity of 60% and overall accuracy of 75% in the differentiation between the septate and bicornuate uterus. MRI showed sensitivity of 93.5%, specificity of 80%, PPV of 96.6% and negative predicative value of 66.6%, with overall accuracy of 91.6%. The 3D ultrasound showed the highest diagnostic parameters, with sensitivity of 96.7%, specificity of 100%, PPV of 100% and negative predicative value of 83.3%, with overall accuracy of 97.2%.Conclusions
Transvaginal 3-D ultrasonography is accurate for diagnosis and differentiation between septate uterus and bicornuate uterus. We recommend 3-D transvaginal ultrasonography as the first and only mandatory step in the assessment of the uterine cavity in patients with a suspected septate or bicornuate uterus, especially before planning surgery. MRI should be preserved for patients in whom 3D TVS is not possible like virgins. 相似文献19.
Ahmad Sabry Ragheb Hossam Mansour Abdel Rahman Ahmed A. Azeem Ismail Nashwa Nawar 《The Egyptian Journal of Radiology and Nuclear Medicine》2014
Background
Cervical adenopathy is a common problem and the differentiation of benign and malignant node is of crucial importance for therapy management.Objective
This prospective study aimed to know if Diffusion weighted images (DWI) and apparent diffusion coefficient (ADC) can differentiate benign from malignant cervical lymphadenopathy.Patients and methods
Thirty patients with cervical adenopathy were included in this study. Doppler ultrasound, DWI and ADC maps were automatically reconstructed and used for the measurement of ADC values.Results
The sensitivity and specificity of the RI cut-off value <0.69 in differentiation between benign and malignant cervical L.Ns was 88.8% and 71.4%, respectively. The optimal ADC cut off value for differentiation between benign and malignant lymph nodes was ?1.0 × 10−3 mm2/s with an accuracy 96.7%, a sensitivity 100%, a specificity 88.9%, PPV 95.4% and NPV 100% and statistically significant P-value = 0.000.Conclusion
DWI and ADC were useful for differentiation between benign and malignant cervical lymphadenopathy and recommended to decrease the need of invasive biopsies. However, CDUS techniques can be used as preliminary technique but, they had potential pitfalls in diagnosis of malignant cervical lymphadenopathy cases. 相似文献20.
Naglaa H. Shebrya Hazem F. Abu El Hamayed Samer M. Botros Mohamed S. Shoeb 《The Egyptian Journal of Radiology and Nuclear Medicine》2014