共查询到20条相似文献，搜索用时 31 毫秒
1.
Youssriah Y. Sabri Mona A.F. Hafez Hebata-Allah H.M. Assal Muna A.H. Al-Dura 《The Egyptian Journal of Radiology and Nuclear Medicine》2018,49(3):645-651
In this study we aimed to highlight the role of multi-slice computed tomography (MSCT) and high resolution computed tomography (HRCT) of the chest in the detection of pulmonary bronchiectatic lesions and to display the approach used in determining the proper etiological diagnosis.
Patients and methods
This study involved 62 patients; 36 females and 26 males, were referred to the radiology department for MSCT of the chest from the pulmonary department in the period from October 2016 – April 2017.Results
Pulmonary bronchiectatic lesions were classified according to bronchiectasis distribution; with bilateral lesions were more common in 62.5% of patients, classification according to morphological type with the cylindrical bronchiectasis was the most common shape in 37.5% of case, classification according to bronchiectasis etiology, most of cases were post inflammatory in 42.2% of cases, followed by traction bronchiectasis in 34.4% of cases. Then the diagnostic approach to reach different etiologies was displayed.Conclusion
The role of MDCT imaging in diagnosis and evaluation of bronchiectasis is crucial. 相似文献2.
Hossam Mansour Abd El-Rahman Tamir A. Hassan Muhammad M. Elfawal Basheir A. Hassan Al shymaa A. Ali Hend M. Abdel-Rahman 《The Egyptian Journal of Radiology and Nuclear Medicine》2017,48(3):581-591
Purpose
To investigate the value and highlight the role of multi slice computed tomography (MSCT) angiography in evaluation of extra-cardiac intra thoracic vascular anomalies in children.Patients and methods
This study included 24 patients (13 males and 11 females) with an age range of 1 month–13 years. All of these patients were clinically diagnosed to have congenital heart disease with suspected extracardiac vascular anomalies. All underwent prospective ECG-gated MSCT angiography after trans-thoracic echocardiography (TTE). Iterative reconstruction techniques were applied to reduce the radiation dose in MSCT angiography with the mean radiation dose of (4 mSv). The diagnostic accuracy and sensitivity of MSCT angiography and TTE were compared in comparison with surgical outcome.Results
The most common congenital extra cardiac vascular anomalies are PDA (45.8%) and aortic coarctation (37.5%). The major CT angiographic findings missed by TTE were coronary artery anomalies, absence of a pulmonary artery and pulmonary artery stenosis. The overall sensitivity of the MSCT angiography in diagnosis of the extra-cardiac vascular anomalies was 98.1% which was higher than that of TTE 80%.Conclusion
CG gated MSCT angiography is an accurate modality for demonstrating extra cardiac structures in complex CHD. It provides important complementary information to TTE with regard to extra cardiac vascular structures and coronary artery anatomy. This modality may reduce the need for high radiation dose invasive diagnostic cardiac catheterization. 相似文献3.
Doaa M. Emara Khaled M. Moghazy Galal M. Abo Elnagah Doaa A. Mohamed 《The Egyptian Journal of Radiology and Nuclear Medicine》2018,49(2):310-322
Objective
To assess the role of multislice computed tomography (MSCT) in the diagnosis of mesenteric vascular occlusion.Patients and methods
This study was performed on 30 patients clinically suspected and radiologically confirmed to have mesenteric vascular occlusion, they were examined with 64 row MSCT and were evaluated for evidence of bowel wall changes and abnormal mesenteric vascular changes.Results
We found that the most prevalent MSCT findings were bowel wall thickening followed by diminished wall enhancement. MSCT gave an accurate diagnosis of the cause of mesenteric vascular occlusion as proved by the final diagnosis based on surgical exploration, laboratory investigations and clinical follow-up.Conclusion
MSCT is accurate, fast and non invasive technique which should be used in clinically suspected patients with MVO in order to confirm the diagnosis, identify the aetiology and in addition assessing the bowel loop status for adequate management with good prognosis. 相似文献4.
S.M. Shehata F.M. Zaiton M.H. Abo Warda D.A. Shahbah B.R. Ebrahim 《The Egyptian Journal of Radiology and Nuclear Medicine》2017,48(2):467-478
Objective
Assessing the role of MSCT compared to TTE in pediatric patients with congenital heart diseases especially the thoracic congenital vascular anomalies.Methods
54 pediatric patients underwent a 128 detectors computed tomography cardiac angiography with retrospective ECG-gating. Images were reviewed based on segmental approach using the operative data (35/54 patients) or cardiac catheterization (19/54 patients) findings as reference standard. Sensitivity, specificity, positive and negative predictive values and accuracy of TTE and MDCT were evaluated.Results
MDCT was superior to TTE in evaluating vascular lesions (aortic, conotruncal, coronary artery, major aorto-pulmonary collaterals, patent ductus arteriosus, venous anomalies and postoperative complications) as well as pulmonary lesions; while TTE was superior in intracardiac anomalies with equal performance in (pulmonary artery anomalies, concordance and valvular atresia). MDCT achieved (100%, 96.3% and 87%) accuracies compared to TTE (94.4%, 85.2% & 96.3%) for delineating isolated vascular anomalies, complex vascular anomalies and intracardiac anomalies respectively.Conclusion
The main added value of cardiac MDCT to TTE is the precise illustration of the extracardiac anatomic structures, without adding significant information on intracardiac abnormalities. Using MDCT with TTE has improved the diagnostic accuracy thus obviating the need for diagnostic cardiac catheterization especially in critically ill patients. 相似文献5.
Youssriah Yahia Sabri Hassan Gamal Abd El Nasser Yamamah Takeya Ahmed Taymour 《The Egyptian Journal of Radiology and Nuclear Medicine》2018,49(4):1003-1008
Objective
The purpose of this study was to shed some light on different tracheobronchial branching anomalies as well as evaluating the role of multislice CT (MSCT) examination in accessing of them. Knowledge of different tracheobronchial branching anomalies and their nomenclature is mandatory for radiologists, bronchoscopists and chest surgeons. Multiplanar and 3D reconstruction CT images provide an important complementary method of viewing these branching anomalies and offer the potential to improve diagnostic confidence and accuracy and enhance communication and planning for any interventional chest procedure.Patients and methods
The study involved 50 patients presented to radiology department with different chest complaints in the period from February to July 2017 and only cases with CT picture suggestive of tracheobronchial branching anomalies were included in this study Tracheobronchial tree was studied using different protocols of MSCT (NECT, CECT, CTPA, HRCT, VB). Tracheobronchial branching anomalies were an incidental finding in all cases.Results
Tracheobronchial branching anomalies due to upper lobe anomalies represent 52% of total anomalies (26 cases) and the commonest cause of the upper lobe anomalies is pre-eparterial bronchus (9 cases). Lower lobe anomalies were found in 6% of cases (3 cases) and all due to suprasuperior bronchus. Cardiac bronchus was found in 14% of patients (7cases), and one case was diagnosed as bridging anomaly. Branching anomalies affecting entire lung were detected in 13cases (26%) most commonly sintus inversus (6 cases).Conclusion
The role of MSCT imaging in the evaluation of tracheobronchial branching anomalies is central, being accurate and non-invasive. 相似文献6.
Inas ELFiky Dena Abd El Aziz El Sammak Ahmed El Sammak Mohammad Abdelhady 《The Egyptian Journal of Radiology and Nuclear Medicine》2017,48(2):415-424
Objective
The aim of this study was to assess the role of multislice computed tomography (MSCT) using 2D and 3D images in evaluation of different types of Le Fort fractures.Subjects and methods
30 cases referred from the Emergency unit in Zagazig University Hospital were included in this study, based on clinical evidence of facial trauma, they underwent multislice computed tomography (MSCT) examination and were shown to be positive for pterygoid fractures.All patients subjected to non contrast MSCT in axial cuts. Multiplanar reformatted (MPR) images were acquired using the machine software in sagittal and coronal planes. Finally images were transferred to a workstation for reconstruction of 3D images.Results
Sensitivity of multislice computed tomography (MSCT) in detecting compound Le Fort fractures for radiologists A, B and C was 94.4%, 66.7% and 100% respectively. Sensitivity of MSCT in detecting isolated Le Fort fractures for radiologists A, B and C was 100%. The difference between radiologists A, B and C in detecting Le Fort fractures types was insignificant. Good agreement between radiologists A, B, C and intraoperative findings.Conclusion
Both 2D-CT and 3D-CT are the best methods in imaging of Le Fort fractures. 相似文献7.
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8.
Kareem Mohsen Moussa Dalia Salah Eldin Elmesidy Abeir Osman Dabbous 《The Egyptian Journal of Radiology and Nuclear Medicine》2018,49(1):216-222
Objectives
Evaluating the value of MRI for assessing congenital anomalies of the inner ear in children with congenital sensorineural hearing loss (SNHL) before cochlear implantation.Patients and methods
This study included 56 children, suffering from severe to profound bilateral congenital SNHL. All included patients were potential candidates for cochlear implants. All patients were evaluated by MRI of the temporal bone.Results
This study detected abnormalities in 27 (24.11%) ears out of 112 ears. We detected dilated vestibular aqueduct in 12/27 (44.44%) of abnormal ears, incomplete partition type-II in 8/27 (29.63%) of abnormal ears, cochlear hypoplasia in 8/27 (29.63%) of abnormal ears, semicircular canals hypoplasia in 2/27 (7.41%) of abnormal ears, Michel deformity in 2/27 (7.41%) of abnormal ears, common cavity deformity in 2/27 (7.41%) of abnormal ears and cochlear aplasia in 1/27 (3.7%) of abnormal ears.Conclusion
MRI is a valuable tool in the evaluation of inner ear abnormalities in children with congenital SNHL. It allows for the detection of aplasia of the cochlea or the cochlear nerve which represent absolute contraindications to a cochlear implant surgery. 相似文献9.
Yasser I. Abd Elkhalek Ahmed Mohamed Mohamed Fahmy Bassiouny 《The Egyptian Journal of Radiology and Nuclear Medicine》2018,49(3):815-818
Objectives
To assess the technical success and short term clinical efficacy of trans-catheter ovarian vein coiling in the treatment of symptomatic pelvic congestion syndrome in women.Methods
This study included 10 female patients having pelvic venous congestion treated by coiling and were followed up for 3?months between February 2016 and April 2017 at Ain Shams University hospital, Cairo, Egypt. Symptomatology of pelvic congestion syndrome that was documented either by transvaginal Doppler and/or by MRI with no response to conservative treatment.Results
Symptoms successfully disappeared in 8 patients out of 10. Partial relief of symptoms in one patient that was then disappeared after another session. Only one patient showed no improvement.Conclusion
Our study demonstrates high efficacy of ovarian vein coiling as a new technique in the treatment of symptomatic female patients with pelvic congestion syndrome. 相似文献10.
Hala Yehia Yousef Haitham A. Dawood Nesreen Mohey 《The Egyptian Journal of Radiology and Nuclear Medicine》2017,48(4):927-930
Aim of the work
To evaluate the role of diffusion weighted imaging (DWI) in the planning for CT guided biopsy of lung and mediastinal lesions.Subjects and methods
This cross sectional study included 23 patients with mean age was 42.7?years came with clinical and imaging suspicion of chest malignancy, referred for CT guided transthoracic biopsy. DWI and apparent diffusion coefficient (ADC) were evaluated for all patients to choose the area of maximum restriction.Results
The study showed that with DWI guidance; all the biopsy specimens were diagnostic and provide adequate material for analysis.Conclusion
DWI and measurement of ADC value has a very helpful role in the pre-procedural planning of transthoracic biopsies. 相似文献11.
Karim Mohammed Saad Ziada Adel Mohamed Ahmed Rizk Alaa Mohammed Fathi Asaad Mowaki Tarek Youssef Aref 《The Egyptian Journal of Radiology and Nuclear Medicine》2018,49(2):378-384
Background
The systematic use of MDCT angiography in patients with haemoptysis is especially helpful to identify ectopic bronchial arteries, non-bronchial systemic arteries and pulmonary artery pseudoaneurysms.Aim of this study
Aim of this study is to assess the role of MDCT angiography in the evaluation of abnormal bronchopulmonary vasculature in patients with haemoptysis.Results
The study was performed on 36 patients presented with haemoptysis and showing vascular abnormalities on CT angiography. Tuberculosis was the most common underlying disease. Dilated bronchial arteries (BAs) were detected in 86% of patients; they originate between D4 and D6 vertebral levels. About 95% of right BAs have their ostia between 9 and 10o’clock positions, while 75% of left BAs originated between 11 and 1o’clock positions. This study included 8 non bronchial systemic arteries with the inferior phrenic arteries were the most common. Significant pleural thickening (>3?mm) may predict non-bronchial arterial supply. Pulmonary arteries had a role in haemoptysis in only 2 patients.Conclusion
This study has shown that MDCT angiography is a valuable non invasive diagnostic tool in the evaluation of haemoptysis. It provides a roadmap of the vascular abnormalities and aids in the diagnosis of the underlying disease. 相似文献12.
Enas A. Azab 《The Egyptian Journal of Radiology and Nuclear Medicine》2018,49(4):948-952
Background and objective
Laparoscopic sleeve gastrectomy become widely employed and accepted operation in between Arab population as a permanent solution for morbid obesity. There are many acute complications associated with LSG such postoperative leaks or bleeding, abscess formation, splenic infarction and portal vein thrombosis. The purpose of the study is to present how multidetector CT is beneficial as a screening investigation to detect these complications.Methods
We retrospectively review CT images done in the first week post operative for280 patients subjected to LSG the center in the period between July 2017-December 2017 (average age 39.5?years old).Results
the leak was suspected in 3 patients documented by a direct leak of contrast in one of them, 2 patients active bleeding was clinically suspected, but the exact site of bleeding could not be identified by CT, 15 patients had serous fluid collection, splenic infarction was noticed in 18 patients, 3 patients developed postoperative hematoma one of them become infected, anterior abdominal wall hematoma seen in 5 patients, one patient developed portal vein thrombosis.Conclusion
CT is an important imaging tool to diagnose post LSG complications. 相似文献13.
Mohamed Saied Abdelgawad Rania A.M. Abouyoussef 《The Egyptian Journal of Radiology and Nuclear Medicine》2018,49(2):299-303
Aim of the work
The aim of this retrospective study is to highlight the MDCT features of portal biliopathy (PB).Patients
This study included 32 patients with extra-hepatic portal vein obstruction (EHPVO) and biliary dilatation. Their age ranged from 27 to 63?years, including 21 males and 11 females.Methods
The included patients had records of complete clinical examination and laboratory data, including bilirubin levels. All patients were examined by multiphase MDCT study with good portal phase.Results
Extra-hepatic biliary dilatation without intra-hepatic dilatation seen in 5 patients (type I), intra-hepatic dilatation without extra-hepatic dilatation seen in 12 (type II) patients, unilateral intra-hepatic predominant with extra-hepatic dilatation (type IIIA) seen in 7 patients (4 right sided predominance and 3 left sided predominance). Both extra and bilateral intra-hepatic dilatation in 8 patients (type IIIB).Conclusion
MDCT is an excellent technique for the diagnosis of portal biliopathy reducing errors in diagnosis. 相似文献14.
Rehab Abdel Rahman El Bakry 《The Egyptian Journal of Radiology and Nuclear Medicine》2018,49(2):529-535
Objectives
Comparison between digital mammography alone and with adding digital breast tomosynthesis in breast cancer screening.Patients & methods
143 females underwent digital mammography, digital breast tomosynthesis and breast ultrasound.Results
DBT+DM decreased recall rate by 38% in BI-RADS 0. From BI-RADS I till BI-RADS V DBT+DM showed more accuracy than DM. In BI-RADS IV DBT+DM decreased false positive results by 33%.Conclusion
Adding digital breast tomosynthesis to digital mammography improves the diagnostic accuracy in breast cancer screening. 相似文献15.
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16.
17.
Parinaz Mehnati Reza Malekzadeh Mohammad Yousefi Sooteh Soheila Refahi 《The Egyptian Journal of Radiology and Nuclear Medicine》2018,49(4):1187-1189
Background
Bismuth shield has been recently introduced for radiation protection of patient radiosensitive organs such as breast during chest CT with image diagnosis capability. The purpose of this study was to evaluate the dose reduction and image quality conserve using new bismuth-silicon composite shields during chest CT.Materials and methods
Scans were performed on a PMMA phantom using a 6-slice MDCT system. Dose reduction was calculated by placing ion-chamber in the 12?o’clock position for breast dose measuring. Chest CT scans was performed with and without new bismuth composite shields 10% by 0.5?mm and 1?mm thicknesses. Image quality was assessed by CT numbers and noise evaluation.Results
The results of using bismuth composite shields induced to dose reduction to 7% and 12% for 0.5?mm and 1?mm thicknesses, respectively. As a result of the using 0.5?mm and 1?mm bismuth composite shields, the mean CT numbers and noise increased by a factor of 0.01 and 0.02 and also from 0.08 to 0.13, respectively. Significant dose decline was measured and no relevant noise was found.Conclusion
Results showed that new bismuth-silicon composite shields have good potential to breast dose reduction with smallest noise for diagnosis in chest CT. 相似文献18.
Shirin H. Al-Zandi Noor A.H. Fayadh Noor K.N. Al-Waely 《The Egyptian Journal of Radiology and Nuclear Medicine》2018,49(1):158-164
Background
MRI is an essential tool for diagnosing multiple sclerosis; however, overlap with nonspecific white matter lesions still exists. The central vein sign as detected by MR susceptibility weighted imaging has been proposed to improve the diagnostic accuracy of MRI in MS.Purpose
To assess the value of the central vein sign at susceptibility weighted imaging in discriminating between MS-WMLs and leukoaraiosis-WMLs.Patients and methods
Thirty MS patients and 30 patients with leukoaraiosis, matched for age and gender were included in this study. On axial FLAIR, white matter lesions?≥?5?mm were counted and subsequently assessed on the axial SWI sequence for the presence of the central vein. The cut-off value of CVS positivity of lesions was evaluated using ROC curve.Results
CVS was detected in 86.84% of MS lesions and in 13.33% of leukoaraiosis lesions with statistically significant difference.The sensitivity, specificity, positive and negative predictive values of individual CVS positive lesion in diagnosing MS were 86.84%, 86.6%, 88.7% and 75.72% respectively. A specificity of 100% was attained when CVS positive lesion load is ≥47.5%.Conclusion
Central vein sign is a fairly reliable discriminator between MS and leukoaraiosis. 相似文献19.
Mohamed M. Zaki Ehab A. Hegazy Maysa I. Abdelhamid Sabry A. El-Mogy 《The Egyptian Journal of Radiology and Nuclear Medicine》2018,49(3):732-736
Introduction
The purpose of this study was to evaluate the role of parallel imaging technique in obtaining a more accurate geometric representation of the studied anatomy and how far this technique can reduce the pixel displacement and increase resolution in echo planner imaging- diffusion weighted (EPI-DW) images of the brain.Patients & methods
The study was done on 6 patients, they were subjected to routine brain MRI examination for different symptoms, examination was done on 1.5?T scanner, the degree of geometric distortion was measured in the phase encoding direction (from anterior to posterior (A/P) in the used sequence) in both DWI sequence acquired without and with parallel imaging technique respectively and was compared with T2-FSE sequence which has no geometric distortion as in EPI.Results
Parallel imaging technique reduced artifact (pixel displacement) in frontal and occipital lobes in addition to increasing resolution for EPI-DWI for the brain. This technique reduced pixel displacement in the frontal lobe by 47?±?11.7% and 47.3?±?11% reduction in the occipital lobe.Conclusion
Parallel imaging technique can be used with EPI-DWI to increase resolution and decrease geometric distortion artifact to acquire more accurate geometric representation of the acquired anatomy. 相似文献20.
Youssriah Yahia Sabri Khaled Mahmoud Kamel Mona Ahmed Fouad Hafez Sara Mohamed Saleh Saleh Nasef 《The Egyptian Journal of Radiology and Nuclear Medicine》2017,48(4):947-952