共查询到20条相似文献，搜索用时 31 毫秒
1.
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2.
Sahar Mahmoud Mansour Mariam Raafat 《The Egyptian Journal of Radiology and Nuclear Medicine》2017,48(4):1131-1139
Objective
To assess the diagnostic accuracy of diffusion weighted imaging (DWI-MRI) being a non-contrast based MR sequence versus dynamic contrast enhanced MRI (DCE-MRI) in the preoperative loco-regional staging of the cervical carcinoma.Methodology
Fifty cases of proved cancer cervix prior staging subjected to dynamic post contrast technique: one pre-and six post contrast phases (40?s each). DWI was scanned using different b values and ADC values were measured.Results
DWI was the most accurate in staging operable cases (93.3%).Parametrial infiltration was overestimated in 3 cases versus 4 cases in DCE-MR. DWI showed 100% sensitivity, positive predictive value and accuracy in the assessment of locally advanced carcinomas. In metastatic lymph nodes, DCE-MR showed the least accuracy of 86%.Conclusion
DWI is helpful in discriminating local from locally advanced cervical carcinomas. DCE-MR can delineate cervical carcinomas confined to the uterus and exclude bladder/rectal invasion. 相似文献3.
Role of Ultrasound Guided Platelet-Rich Plasma (PRP) Injection in Treatment of Lateral Epicondylitis
Enass M. Khattab Mohamad H. Abowarda 《The Egyptian Journal of Radiology and Nuclear Medicine》2017,48(2):403-413
Background
Lateral epicondylitis is referred to a degenerative disorder that affects the common extensor tendon (CET) where it attaches to the lateral epicondyle of the humerus. Nowadays, one of minimally invasive interventions is platelet-rich plasma (PRP) injection that had been explored in some controlled clinical studies to show its effectiveness in treating lateral epicondylitis through inducing inflammation rather than suppressing it.Objectives
The aim of our study was to investigate the effectiveness of ultrasound guided platelet-rich plasma (PRP) injection in treating chronic lateral epicondylitis in addition to identifying the potential sonographic morphological changes in the common extensor tendon (CET) after PRP injection.Results
Statistical analysis showed high significant improvement in all ultrasound findings of common extensor tendon (CET) including echotexture, thickness, cross section, partial tear and calcification in majority of patients.Conclusion
We concluded that US-guided platelet-rich plasma (PRP) injection for treatment of lateral epicondylitis was a safe, minimally invasive and effective procedure in improving the sonographic and pathological changes of common extensor tendon (CET). 相似文献4.
Mennatallah Hatem Shalaby Sherin M. Sharara Mohammed H. Abdelbary 《The Egyptian Journal of Radiology and Nuclear Medicine》2017,48(3):645-652
Background
The ankle is frequently injured in trauma, overuse syndrome and inflammatory processes. Different imaging modalities assess the ankle, including plain radiography, computed tomography (CT), magnetic resonance imaging (MRI), and ultrasonography (US).Purpose
Our objective is to assess the role of high resolution US as a valuable tool in the depiction of causes of ankle joint pain.Patients and methods
The study included 28 patients presented with ankle pain ranging in age from 17 to 60 years. They were examined by US and findings were correlated with MRI.Results
US was capable to detect various lesions (synovitis, arthritis, plantar fasciitis, tendon and ligamentous lesions). It had a sensitivity of 95.4%, a specificity of 83.3% and an overall accuracy of 92.8%. US had a limited value in detection of avascular necrosis (AVN), bone marrow oedema and fractures.Conclusion
US can be used as a first step diagnostic tool in cases of ankle pain. MRI should be spared to cases with negative or equivocal US findings. 相似文献5.
Deb Kumar Boruah Rajanikant R. Yadav Kangkana Mahanta Antony Augustine Manoj Gogoi Lithingo Lotha 《The Egyptian Journal of Radiology and Nuclear Medicine》2017,48(4):1187-1196
Objective
Vaginal or uterine outlet obstruction leads to hematocolpos or hematometra. Detection of the etiology of this entity is important to guide adequate surgical management and thereby avoid complications and to preserve fertility. The aim of this study was to evaluate obstructing vaginal malformations in adolescent girls presenting with hematocolpos or hematometra with MR imaging.Materials and methods
A hospital based prospective study was conducted in a tertiary care centre from September 2015 to October 2016. The study included 17 adolescent females who were evaluated with MRI.Result
Of 17 adolescent female with vaginal or uterine outflow obstructive anomalies with hematocolpos or hematometra, where 6 patients (35.3%) had HWWS, 6 patients (35.3%) had imperforate hymen, 2 patients (11.8%) had transverse vaginal septum, 1 patient each (5.9%) had cervico-vaginal atresia, unicornuate uterus and communicating rudimentary Uterine horn. MRI revealed hematocolpos in 15 patients (88.2%), hematometra in 13 patients (76.5%), endometriotic ovarian cysts in 6 patients (35.3%) and hematosalpnix in 3 patients (17.6%).Conclusion
Early radiological diagnosis of the cause of vaginal or uterine outflow obstruction is important to guide adequate surgical management which if undertaken promptly helps to avoid complications due to reflux from vaginal or uterine outflow obstruction. 相似文献6.
Mohamed Mahmoud Donia Omneya Ahmed Gamaleldin Ashraf Mostafa Abdo Salah El-Din Desouky Shadia Abou Seif Helmy 《The Egyptian Journal of Radiology and Nuclear Medicine》2017,48(4):1035-1041
Objective
The aim of this study was to highlight the role of MRI in detecting and diagnosing trigeminal nerve neoplastic lesions.Patients and methods
56 patients included in our study presented with trigeminal symptoms with or without other neurological symptoms, subjected to conventional MRI sequences and 3D sequences as (CISS) and T1 magnetization-prepared rapid acquisition gradient echo (MP-RAGE). The inclusion criteria included patients with intracranial neoplastic lesions involving the trigeminal nerve and/or its branches.Results
28 patients met our inclusions criteria and subjected to statistical analysis; 19 patients were females and 9 were males ranging between 15 and 70?years with a mean age of 47.5?years. 14 lesions were benign and 14 were malignant, and were distributed according to final diagnosis as meningiomas (10 cases), lymphoma (6 cases), deposits (4 cases), nasopharyngeal carcinoma (4 cases) schwannoma (3 cases), and neurofibroma (one case). The most frequent involved segments of the trigeminal nerve was simultaneous involvement of both Meckel’s cave and cavernous sinus in nine cases (32%).Conclusions
MRI is very helpful in demonstrating the whole intra-cranial course of the trigeminal nerve and in diagnosing various neoplastic lesions involving the nerve, and thus providing full roadmap before management. 相似文献7.
Aya S. Al-Rawy Mohammad al-Shatouri Mohammed El Tabbakh Azza A. Gad 《The Egyptian Journal of Radiology and Nuclear Medicine》2017,48(4):877-884
Objectives
To create a systematic approach using computed tomography (CT) and magnetic resonance imaging (MRI) findings to facilitate identifying the etiology of hearing loss, evaluating the anatomy for surgery, and predicting complications.Methods
Twenty nine pediatric patients with congenital or acquired sensory-neural hearing loss (SNHL) requiring cochlear implant (CI) were included. They underwent combined CT, 3D DRIVE MRI axial plane and axial T2WIs for the whole brain. The inner ear, cochlear nerve development, temporal bone anatomy, operative window, normal variants and causes of central hearing loss were assessed.Results
CT showed that 100% of the patients are suitable for CI while MRI showed that 96.5% of studied patients are suitable. The examined ears were categorized into 4 groups according the candidacy for operation; 86.2% were suitable for CI, 5.1% were suitable for CI but with expected poor response, 1.7% of examined ears were suitable for CI with modification of surgical procedure and 6.8% were not suitable for CI.Conclusion
In Suez Canal area, the combined CT/MRI approach categorized the majority of patients with SNHL (96.6%) as good candidates for CI. 相似文献8.
Ahmed M. Abdrabou Mennatallah H. Shalaby 《The Egyptian Journal of Radiology and Nuclear Medicine》2017,48(4):977-981
Purpose
To highlight the relationship between coraco-humeral distance and subscapularis tendon tear.Material and methods
Sixty-two shoulder MRI studies were examined. Twenty-two patients had partial or complete tear of subscapularis tendon and forty shoulder as a control group. Axial and oblique sagittal MR images were examined to measure the coraco-humeral distance followed by statistical analysis to correlate the distance with tendon tear.Results
A cut-off value of 8.25?mm for the coraco-humeral distance gave a sensitivity of 77.5% and specificity of 72.7% for subscapularis tendon tear.Conclusion
There is a well-known relationship between the coraco-humeral distance and the subscapularis tendon tear and its meticulous assessment in subjects with pain in the anterior shoulder region increases the diagnosis of subcoracoid impingement. 相似文献9.
Nivan Hany Khater Hadeer Safwat Fahmy Heba Ibrahim Ali 《The Egyptian Journal of Radiology and Nuclear Medicine》2017,48(1):51-60
Objectives
To assess the accuracy of Magnetic Resonance Enterography (MRE) in determining site, extent and complications of Crohn’s disease, in correlation with capsule endoscopic and colonoscopy findings.Patients and methods
We performed an observational prospective study for 30 patients with suspected Crohn’s disease or already diagnosed patients with Crohn’s disease (CD). Bowel inflammatory changes were analyzed for each involved bowel segment. Associated lymph nodes, abscesses, and fistulas were also evaluated.Results
MRE was diagnostic for small bowel inflammatory changes with sensitivity and specificity values of 76% and 90% respectively as compared to 80% and 88% for capsule endoscopy, with an overall accuracy of 83% as compared to capsule endoscopy.For large bowel inflammatory changes, MRE showed sensitivity and specificity values of 82% and 80% respectively as compared to 84% and 85% for colonoscopy, with an overall accuracy of 81% as compared to colonoscopy.All severely inflamed segments were correctly identified, and there were no false positive findings in this study.Conclusion
MRE is practicable, non-invasive and provides additional information regarding areas not accessible with endoscopy. 相似文献10.
Kunwarpal Singh C.L. Thukral Kamlesh Gupta 《The Egyptian Journal of Radiology and Nuclear Medicine》2017,48(3):653-660
Background
Characterization of tendo-ligamentous pathologies of wrist remains problematic, despite advances in imaging. By using clinical history and imaging appearance, one can determine the diagnosis. USG is used as first imaging modality whereas MRI aids in making a specific diagnosis of few of the lesions.Aims
To investigate the etiological spectrum of tendo-ligamentous pathologies of wrist on USG & MRI with statistical correlation.Patients and methods
80 patients (male/female = 46/34) with complaint of swelling or pain in wrist were included and underwent USG and MRI of both the wrists.Results
The spectrum included ganglion cysts, vascular malformations, tenosynovitis, tendinopathy, ligament tears and fibrosis. The analysis was done using kappa coefficient and spearman's rho correlation coefficient. The strength of agreement between USG and MRI for the diagnosis of ganglion cysts, vascular malformations, tenosynovitis and tendinopathy was found to be very good.Conclusion
USG provides detailed depiction of superficial structures, is less expensive, and allows dynamic examinations of the wrist. It should be the first choice of investigation for majority of the cystic, tendinous, vascular, and fibrotic pathologies of the wrist. However, less promising results were observed for ligamentous pathologies on USG in our study. 相似文献11.
Mohamed I. Yousef Medhat M. Refaat Mohamed H. Faheem 《The Egyptian Journal of Radiology and Nuclear Medicine》2017,48(4):817-824
Aim
To evaluate accuracy of DWI in evaluating HCC response to DEB TACE and compare the results with DCE MRI.Material and methods
42 patients with 59 lesions underwent precontrast abdominal MRI, DWI, ADC map with ADC value measurement and DCE MRI. The qualitative DWI and ADC values were correlated to the DCE MR findings.Results
Comparing the qualitative DWI findings to DCE MRI, showed sensitivity of 83.9%, specificity of 64.3%, positive predictive value of 72.2%, and negative predictive value of 78.3% and overall accuracy of 74.5%. The measured ADC values showed significant difference (P value <0.05) between the ADC values measured in the active tumoral areas and necrotic areas with no significant difference between areas of active tumoral enhancement in the different groups. ROC analysis for ADC values showed area under curve 0.7 and maximum combined sensitivity and specificity of 79% and 69.6% respectively at cutoff ADC value of 1.395?mm2/sec.Conclusion
DWI is useful highly sensitive technique in evaluation of HCC response to DEB TACE, yet it has low specificity related to high number of false positive results preventing using it solely. Also, DWIs is a reliable method in differentiation between active tumor residue/recurrence and benign perilesional enhancement. 相似文献12.
Ahmed Elsammak 《The Egyptian Journal of Radiology and Nuclear Medicine》2017,48(4):1073-1081
Objectives
To assess the clinical utility of PET-CT in assessment of thoracic involvement in lymphoma patients prior to, during and after finishing treatment and comparing it to contrast enhanced CT (CECT).Patients and methods
PET-CT was performed for 30 patients with lymphoma. Thoracic nodal and extranodal involvement was assessed and compared to contrast enhanced CT.Results
Comparison of CECT and PET-CT in staging and assessment of treatment response reveals significant statistical difference (P?=?.0001 & .04 respectively). CECT shows sensitivity?=?83.3% and specificity?=?75% in evaluation of patients after finishing chemotherapy.Conclusion
PET-CT plays an important role in staging, detection of response to treatment and restaging of lymphoma after finishing chemotherapy. 相似文献13.
Reham Farghaly Iman Zaki Iman Gouda Mohamed Abdelfatah Ahmed El Ghoneimy Magdy El Sherbiny Ranin Soliman Manal Zamzam 《The Egyptian Journal of Radiology and Nuclear Medicine》2017,48(2):461-465
Histologic response to neoadjuvant chemotherapy is an essential prognostic criterion in osteosarcoma. Non-invasive assessment of the effect of neoadjuvant chemotherapy influences the timing and method of definitive surgery.
Aim
This study evaluated the use of Dynamic Contrast Enhanced-MRI (DCE-MRI) in preoperative estimation of residual viable tumor present in Osteosarcoma following chemotherapy.Patients and methods
We conducted a prospective study from July 2011 till April 2013 on 50 pediatric patients with a mean age of 12.8 years diagnosed as Highgrade osteosarcoma in long bones at the Children Cancer Hospital Egypt.Conventional and dynamic MRI performed before definitive surgery was compared with histopathology assessment of necrosis. For DCE-MRI, 3 regions of interest (ROIs) were chosen and the signal intensity was plotted against time. Signal intensity values and curve pattern were compared to percent of necrosis of the corresponding areas on the resected specimens.Results
DCE-MRI showed sensitivity of 92.5% and specificity of 96% with positive predictive value of 92% and negative predictive value of 96%. Negative correlation was found between signal intensity values and percent of necrosis.Conclusions
DCE-MRI can be used preoperatively as a sensitive, specific, and non-invasive method for detection of viability and necrosis within osteosarcoma. 相似文献14.
Samira Saraya Rehab El Bakry 《The Egyptian Journal of Radiology and Nuclear Medicine》2017,48(3):687-694
Aim of the study
To evaluate the ultrasound efficiency in the assessment of pneumonia in pediatric age group compared to CT as a trial for radiation exposure reduction.Materials and methods
56 patients of pediatric age group were included (4 months to 10 years). They presented to ER with respiratory distress, and pneumonia was suspected clinically. Human ethics committee approval for this study was obtained from the institutional review board of the private center where these cases were done. Both ultrasound and CT were done for all patients by 2 different radiologists being blind to the results of the other examination to minimize the bias. Follow up US was done after adequate medical treatment (7–14 days) to detect its ability for following the patients up.Results
Ultrasound was able to detect efficiently different pulmonary pathological conditions as consolidation and pleural effusion. Compared to CT, ultrasound showed a sensitivity and specificity of 72.2% and 95% for pneumonia detection respectively with 96.3% PPV, 5% NPV, 3.7% FDR and 80.3% accuracy.Conclusion
Ultrasound could be considered as a good diagnostic and follow up tool when pneumonia especially in pediatric age group is suspected yet well trained radiologists and high resolution equipments are required. 相似文献15.
Adel Ali Ramadan Mohamed Samir Shaaban Alaa Magdy El-Sayed 《The Egyptian Journal of Radiology and Nuclear Medicine》2017,48(4):1097-1104
Background
Urinary tract injuries occur in 3–10% of abdominal trauma. Early recognition and diagnosis of ruptured bladder is essential to lower this mortality rate. CT is the method of choice for the evaluation of patients with blunt or penetrating abdominal and/or pelvic trauma. Imaging in patients with suspected bladder injury with CT cystography may be performed using either an intravenous or retrograde technique.Aim of work
The aim was to evaluate the role of CT in diagnosing traumatic urinary bladder injuries.Materials and methods
The study was carried out on 32 patients with suspected traumatic urinary bladder injury. All patients were subjected to contrast-enhanced CT study and classified according to Sandler et al. classification of urinary bladder injuries.Results
All patients were classified according to the type of the encountered urinary bladder trauma. Type I injury was diagnosed in 3.1% of patients, type II in 18.8%, type III in 3.1%, type IVa in 12.5%, type IVb in 43.7% and type V in 18.8%. 21.8% of patients were managed conservatively, while 78.2% of patients underwent surgical repair.Conclusion
CECT well demonstrated traumatic urinary bladder injuries. 相似文献16.
Mennatallah Hatem Shalaby Khaled A. Ali Shehata 《The Egyptian Journal of Radiology and Nuclear Medicine》2017,48(4):791-798
Background
Ninety percent of hepatic cancers are hepatocellular carcinomas (HCC) which have an unfavorable prognosis. HCC is a hypervascular tumor supplied mainly by the hepatic artery. It has a higher blood supply than the surrounding hepatic tissue due to neovascularization. Computed tomography with perfusion imaging (CTP) is a non invasive tool which quantifies the blood flow parameters of HCC and compares it to the surrounding tissue.Purpose
To prove that CTP is a valuable diagnostic tool in diagnosis of HCC and posttherapeutic assessment.Patients and methods
One hundred and twenty-six HCC patients with 150 focal lesions are enrolled this study. Perfusion parameters are quantified and results are compared to those of triphasic CT.Results
CTP detected 141 lesions with 94% sensitivity and 40% specificity with elevated arterial perfusion (AP) and perfusion index (PI) with low portal flow (PF). It missed 5 lesions because of their hypovascularity and 4 lesions following radiofrequency ablation (RFA) and trans arterial chemo embolization (TACE).Conclusion
CTP is a safe and specific imaging tool for diagnosis and assessment of therapeutic interventional procedures in HCC. 相似文献17.
Nesreen Mohey Tamir A. Hassan 《The Egyptian Journal of Radiology and Nuclear Medicine》2017,48(1):1-6
Perianal fistula is a common disorder with high tendency to recur in spite of satisfactory surgery. Pelvic MRI is the preferable imaging modality for recognition and assessment of perianal fistulas.
Aim of the work
To evaluate the effectiveness of MRI in grading of primary perianal fistula and verification of its associated findings in correlation with surgical outcome.Subjects and methods
This prospective study included 30 patients with age range 14–44 years. Preoperative MR grading was correlated with surgical outcome.Results
The sensitivity, specificity, PPV, NPV and weighted Kappa of MR grading in correlation with surgery was 95.8%, 83.3%, 95.8%, 83.3% and 0.79 respectively with P value = 0.000Conclusion
MRI is a valuable modality for grading of primary perianal fistula and its complications. Accurate pre-operative grading may reduce the surgical complications and possibility of recurrence. 相似文献18.
Manar A. Bessar Hanan A. Hassan Wesam A. Mokhtar 《The Egyptian Journal of Radiology and Nuclear Medicine》2017,48(4):971-975
Aim
The aim of this study is to evaluate the role of high resolution ultrasonography (HRUS) of the hip in premature neonates admitted to the neonatal intensive care unit (NICU) in diagnosis of septic hip arthritis.Patients and methods
This prospective study was done for twenty premature neonates having clinical and laboratory findings compatible with the diagnosis of acute septic arthritis. They were subjected to HRUS of the hip as well as US-guided aspiration and analysis of synovial fluid.Results
Hip ultrasonography showed synovial fluid containing echoes in twelve patients and was clear in six patients. Joint capsule was thickened in fourteen patients. Seventeen patients had sonographic features of septic arthritis. The sensitivity of HRUS was 93.8%, specificity 50%, positive predictive value 88.2%, negative predictive value 66.7% and the accuracy was 85%.Conclusion
HRUS is beneficial in early diagnosis of septic hip arthritis in premature neonates admitted to the NICU. It is an easy, available and rapid procedure. 相似文献19.
Samira Saraya Lamia Adel Asmaa Mahmoud 《The Egyptian Journal of Radiology and Nuclear Medicine》2017,48(2):547-552
Objective
To assess the efficiency of dual energy contrast enhanced mammography in the assessment of the indeterminate breast lesions (BIRADS 3 and BIRADS 4).Materials and methods
34 female having 39 indeterminate breast lesions (BIRADS 3 and BIRADS 4) by digital mammography were further examined by dual energy contrast enhanced mammography. Two images were acquired at low and high energy in MLO view after 2 min and in CC view at 4 min post iodinated contrast injection (1.5 ml/kg with flow of 4 ml/s). Images were processed to obtain subtracted images to enhance the areas of the contrast uptake.Results
Results from pathology were detected for all cases. Contrast enhanced digital mammography showed specificity, sensitivity, PPV, NPV, FDR, FPR and accuracy of 93.75%, 91.3%, 88.2%, 95.4%, 11.7%, 8.6% and 92.3% respectively compared to full field digital mammography which were 68.75%, 69.5%, 61.1%, 76.1%, 38.8%, 30% and 69.2% respectively.Conclusion
Contrast-enhanced digital mammography is a useful tool to be used for breast cancer detection especially in indeterminate lesions (BIRADS 3 and 4). 相似文献20.
Gihan Hassan Gamal 《The Egyptian Journal of Radiology and Nuclear Medicine》2017,48(2):339-345