共查询到20条相似文献，搜索用时 31 毫秒
1.
S.M. Shehata F.M. Zaiton M.H. Abo Warda 《The Egyptian Journal of Radiology and Nuclear Medicine》2018,49(2):329-337
Objective
The aim of this study was to clarify the association between epicardial fat volume and coronary atherosclerosis.Materials and methods
A total of 90 patients with clinically suspected coronary artery disease underwent MDCT coronary angiography. The images were interpreted for Calcium score, quantification of epicardial adipose tissue (EAT) volume, and coronary artery disease (CAD) which was classified according to the number of affected vessels, location, extension, component of the lesion and degree of obstruction. EAT was correlated to CAD and Calcium score using 125?cm3 as a cutoff value for acceptable EAT volume.Results
The patients were classified into 3 groups: patients with 1-normal CCTA, 2-non-significant CAD and 3-significant CAD. A high statistical significant difference was found among the 3 groups regarding mean coronary calcium score (P value?=?0.00) and mean EAT volume; Group 1 (125.14?±?56.88?cm3), in group 2 (217.38?±?56.88?cm3) and the largest EAT volume was seen in group 3 (327.94?±?90.17?cm3), (P value: 0.00).Conclusion
The estimation of EAT volume could be considered as a screening test for any patients suspicious for CAD. 相似文献2.
Mohamed I. Amin Hanan A. Hassan Mohamed I.A. Mousa 《The Egyptian Journal of Radiology and Nuclear Medicine》2018,49(1):12-22
Purpose
Is to compare the role of 128 MDCT in quantitative evaluation of left ventricle function in patients with coronary artery disease compared to 2D echocardiography.Patients and methods
Fifty patients with suspected coronary artery disease underwent contrast enhanced MDCT using retrospective gating without dose modulation. Ten phases of cardiac cycle were processed to assess end-systolic and end-diastolic phase at LV short-axis view. 2DSE was performed in the same day. LVSV, LVDV, LFEF, LVSV were calculated using the Simpson's method in MDCT and modified Simpson's method in echocardiography.Results
LVSV, LVDV, LVSV, LFEF were 74.30?±?24.92, 185.46?±?56.25, 84.15?±?33.16, 48.88?±?13.32 respectively on MSCT and 71.43?±?21.93, 182.31?±?56.49, 81.74?±?32.88, 47.82?±?13.64 respectively on echocardiography with excellent correlation between the modalities (P?<?0.001) using linear regression analysis. A Bland-Altman analysis showed that MDCT had slightly higher LVSV, LVDV, and LVSV, LFEF values with mean value of differences of 2.9, 3, 2.4 and 1% respectively.Conclusion
MDCT is an accurate method for quantitative evaluation of global left ventricular function compared to 2D echocardiography. 相似文献3.
Enass M. Khattab Engy Fathy Tantawy 《The Egyptian Journal of Radiology and Nuclear Medicine》2018,49(3):666-673
Aim
This study aimed to assess the role of multidetector computed tomography (MDCT) in detection and evaluation of severity of glenoid and humeral head bone loss in cases of recurrent anterior shoulder joint dislocation.Patients and methods
Twenty four patients were included in the study. MDCT with 3D VR examination was performed to both shoulders of all patients. The area of the missing glenoid was calculated as well as glenoid track and Hill-Sachs interval in cases of humeral head bone loss. The findings were compared with the intra operative arthroscopic results.Results
MDCT could detect minimal glenoid bone loss in 19 patients (79.2%), moderate glenoid bone loss in 4 patients (16.7%) and severe glenoid bone loss in 1 patient (4.2%), while arthroscope detected minimal loss in 16 patients (66.7%), moderate glenoid bone loss in 7 patients (29.2%) and significant glenoid bone loss in 1 patient (4.2%). Off-track Hill-Sachs lesions were detected by MDCT in 40% of patients and reduced to 35% of patients by arthroscopy.Conclusion
MDCT is an optimal imaging modality in preoperative evaluation of glenoid and humeral head bone loss. It is the most accurate radiologic method in evaluating the new concepts of on-track and off- track Hill-Sachs lesions. 相似文献4.
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5.
Mohammad Fouad Abdel-Baki Allam Mostafa Mohamed Mostafa Elian Ahmad Fouad Abdel-Baki Allam 《The Egyptian Journal of Radiology and Nuclear Medicine》2018,49(2):394-399
The wrist joint is a complex joint containing several intrinsic and extrinsic ligaments that contribute to carpal stability. There is increased incidence of ligamentous/capsular injury following trauma.
Objective
The aim of this study was to assess the value of high resolution MDCT arthrography in detection of various ligamentous and capsular injuries of the wrist in post-traumatic writ pain.Patients and methods
From August 2016 to February 2017 Seventeen patients with posttraumatic wrist pain underwent MDCT arthrography primarily through radiocarpal injection and using high resolution study, all patients have negative MRI study of the wrist.Results
59% of cases had ligamentous/capsular tear. The most frequent was the capsular tears. Incomplete intrinsic ligament tears were observed, the dorsal scaphotrapezio-trapezoid ligament was the commonest to be affected. Class IA traumatic TFC tear was found in 12%. There was significant high positive correlation between the VAS score for wrist pain and the presence of ligamentous/capsular tear in absence of bone fracture.Conclusion
MDCT arthrography of the wrist is an excellent imaging method that can detect MRI occult ligamentous tear in unexplained post traumatic pain. 相似文献6.
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7.
Mostafa S. Ashmawy Ibrahim Yamany Ashraf Abou-Khalaf Mary M. Farid Mohamed Rady 《The Egyptian Journal of Radiology and Nuclear Medicine》2018,49(1):60-65
Objectives
Multi-detector computed tomography (MDCT) and cone beam computed tomography (CBCT) were compared regarding their ability to detect vertical root fractures.Methods
Sixty four extracted posterior teeth were included in this study. Using a diamond disc, thirty six teeth were cut vertically to simulate a VRF. Twenty eight teeth were used as control. Fractured and non-fractured teeth were randomly positioned in 4 skulls and mandibles. Scanning was performed first on a 16 slice Siemens MDCT, then by i-CAT Next Generation CBCT. Two observers assessed the multiplanar images for vertical root fractures using a 3-point scale. The first observer repeated the assessment after 1?week. Later, the 2 observers re-assessed the images together to reach a consensus score.Results
CBCT showed higher sensitivity, accuracy as well as negative predictive value compared to MDCT. The mean area under the curve was 0.917 for MDCT and 0.972 for CBCT. The difference in diagnostic accuracy between the 2 modalities was statistically significant P?=?.036. Inter-observer agreement was 0.971 for MDCT and 0.994 for CBCT, whereas intra-observer agreement was 0.981 for MDCT and 0.985 for CBCT.Conclusion
Using the specified scanners at the specified exposure parameters, the diagnostic accuracy of CBCT in detecting vertical root fractures was significantly higher than MDCT. 相似文献8.
Susan Adil Ali Mohamed Gamal El-Din Mansour Omar Farouk 《The Egyptian Journal of Radiology and Nuclear Medicine》2017,48(4):839-846
Purpose
The goal of the study was to assess and confirm the role of 64-slice multidetector computed tomography (MDCT) with its new applications for diagnosis and its impact on management of small bowel obstruction.Patients and methods
Prospective study included 40 patients, referred for radiological assessment of one or more of symptoms of intestinal obstruction or acute abdomen. Patients with clinical suspicion of high grade SBO (30 patients) underwent MDCT, while those with low grade SBO (10 patients) were offered MDCT enterography and the results were compared to the final clinical and surgical diagnosis as well as the histopathology results.Results
18 patients were found to have intrinsic cause of SBO. 17 patients found to have extrinsic cause of SBO including adhesions and different types of hernia. 1 patient with an intraluminal cause (gall stone ileus) and 4 patients with variety of causes involving ileus, midgut volvulus and Ladd's band compressing duodenum. Those results were compared to final clinical surgical diagnosis with 100% accuracy, sensitivity and specificity.Conclusion
64-slice MDCT have a very high sensitivity, specificity and accuracy to diagnose and determine the cause of SBO, allowing for better planning of required surgeries. 相似文献9.
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10.
Omar A. Hassanien Khaled I. El-Shafey Reham A. Khedr Raghda G. Elsheikh 《The Egyptian Journal of Radiology and Nuclear Medicine》2018,49(4):993-1002
Objectives
To assess the role of 320 MDCT angiography in the evaluation of extra cardiac, vascular anomalies of great arteries and compare its results with transthoracic echocardiography and its impact on treatment planning.Materials and methods
This study included 39 patients, their age ranged from 16?days to 13?years. All of these patients underwent echocardiography and CTA examination using 320-MDCT. The images were analyzed using reconstruction techniques including MPR, cMPR, MinIP and VR techniques, the results were compared with surgical/catheter angiographic data.Results
MDCT was superior to echocardiography in diagnosis of great arteries anomalies (aortic and pulmonary). We found excellent agreement between 320-MDCT and surgery/catheter angiography with k?=?1.000 sensitivity, specificity, PPV, NPV, accuracy for aortic anomalies were 100%, 100%, 100%, 100%, 100% and 82.05%, 100%, 100%, 56.25% and 85.42% for MDCT and echocardiography respectively, and that of pulmonary anomalies were 100%, 100%, 100%, 100%, 100% and 84.62%, 100%, 100%, 92.86% and 94.87% for MDCT and echocardiography respectively.Conclusion
The main advantage added by 320-MDCT to transthoracic echocardiograpy was excellent delineation of the great arteries anomalies with suitable operative/catheteric decision without the need for the invasive diagnostic catheter angiography to the patients. 相似文献11.
Sherine Mohamed Sharara Mona Ali Nagi Salah Said Soliman 《The Egyptian Journal of Radiology and Nuclear Medicine》2018,49(2):304-309
Objective
The aim of this work is to highlight the diagnostic value of multidetector CT in assessment of gastric malignancy compared to surgical and pathological results.Method
A Multicenter study was conducted from (October 2011–March 2014). Thirty-five patients were included, eight females and twenty-seven males with mean age 50?years (34–81). All patients were subjected to; Full history taking and physical examination, Multidetector Computed Tomography (MDCT), and Upper Gastro intestinal endoscopy. Triphasic CT was used using oral and IV contrast where scanning at arterial phase cuts were taken after 15?s followed by portovenous 20–25?s after the arterial phase.Results
74% of Lesions detected at the study were mural thickening, with adenocarcinoma pathology. MDCT T staging compared to pathological staging was highly significant. Only 33 cases had pathological reports suitable for comparison with the MDCT staging. True positive cases were 30, false positive cases were 2 cases and false negative was only one case, Thus giving sensitivity 96.7% and accuracy 91%.Conclusion
Multidetector CT can play an important role in diagnosis and preoperative staging of gastric cancer. 相似文献12.
Lamiaa A. Abd ElGawad Shahenaz H. Elshorbagy Amr M. Elbadry Manal E. Badawy 《The Egyptian Journal of Radiology and Nuclear Medicine》2018,49(2):590-596
Aim of work
To assess the role of color Doppler ultrasonography and multidetector computed tomography angiography (MDCTA) in diagnosis of uterine arteriovenous malformations (AVMs).Methodology
Twenty patients were referred to the radiodiagnosis and imaging department, faculty of medicine, Tanta University from obstetric and gynecology department. All patients were suspected clinically to have uterine arteriovenous malformations. All were subjected to history taking regarding clinical state, laboratory investigation and color Doppler ultrasonography and multidetector computed tomography angiography of the pelvis.Results
Color Doppler ultrasound sensitivity was 100% in detecting a uterine hypervascular lesion and highly suggesting the diagnosis of uterine AVM and the sensitivity of MDCT angiography was 100% in diagnosing and evaluating uterine AVM.Conclusion
Doppler US can strongly suggest the presence of AVM but patient should undergo CT angiography for definitive diagnosis and possible embolization, as CTA helps in providing valuable cross sectional anatomical details about the lesion, its extent and its surroundings. 相似文献13.
Hanan A. Hassan 《The Egyptian Journal of Radiology and Nuclear Medicine》2018,49(1):152-157
Purpose
To assess the ability of MDCT to predict ligamentous and meniscal injuries in acute tibial plateau fractures compared to MR images.Patients and methods
Forty patients with acute tibial plateau fracture and 15 control subjects were subjected to MDCT and MR images. Lateral plateau depression (LPD) and lateral plateau widening (LPW) were measured in coronal MDCT images. Meniscal, cruciate, and collateral ligaments injuries were evaluated in MR images.Results
Soft tissue injuries incidence was not related to Schatzker type (P?>?0.05). LBD and LBW were different significantly between patients and control subjects ((P value?<?0.0011). LPD was correlated to meniscal, cruciate, and collateral ligaments injuries (P?<?0.05). LPW was correlated to cruciate and collateral ligaments tears (P?<?0.05) but not meniscal lesions (P?>?0.05). LPD?>?6?mm or LPW?>?7?mm increased possibility of Soft tissue injuries. Multiple soft tissue injuries were not related to Schatzker types (P?>?0.05). LPD and LPW were correlated with number of soft tissue injuries.Conclusion
MDCT measurements of LPD and LPW are correlated with incidence and number of ligamentous and meniscal injuries. MDCT can predict ligamentous and meniscal injuries without waiting for MRI in acute tibial plateau fractures. 相似文献14.
Magdy Mohammed EL Rakhawy Nehad Mahmoud Fouda Nahed Abd El-Gaber EL Toukhy Amr Fathy Abo EL Ftouh Dina harb Mohamed Mahmoud 《The Egyptian Journal of Radiology and Nuclear Medicine》2018,49(4):1145-1154
Back ground
In some patients suffering from chest pain, we must start by non-invasive coronary CT angiography (CCTA) to protect these patients from unnecessary invasive coronary catheter angiography (CCA).Objective
Value of CCTA as the first diagnostic imaging modality in patient suffering from chest pain.Patients and methods
A total number of 100 patients were included in this study with mean age of 53.51?±?11.6 years. Our patients were divided into two groups, group (A) included 60 patients underwent both CCTA and CCA and group (B) included 40 patients underwent CCTA only. Then Framingham Risk Score was applied for 68 cases (68%) after exclusion of cases with previous coronary artery intervention as CABG or stent (32 cases).Results
We were calculated a cutoff point of Framingham Risk Score at which p value <0.001, sensitivity 85.7%, specificity 51.5%, PPV 65.2%, NPV 77.3% and accuracy 69.1%, it was 7.5%. The diagnostic statistics of MDCT for CABG with sensitivity (100%) and specificity (100%).Conclusion
It is reasonable to start with CCTA in patients with Ferminghaim Risk Score less than 7.5%, filtering the patients to avoid unnecessary CCA. CCTA should be the first imaging modality in patients with CABG suffering from chest pain. 相似文献15.
Mohamed Aboul-fotouh E. Mourad Ahmed Fathy A. Al Gebaly Manal F. Abu Samra 《The Egyptian Journal of Radiology and Nuclear Medicine》2017,48(3):563-568
Background
Patients with pulmonary embolism have high mortality and morbidity rate due to right heart failure and circulatory collapse leading to sudden death. Multi-detector computed tomography MDCT can efficiently evaluate the cardiovascular factors related to pulmonary embolism.Objectives
To evaluate the diagnostic accuracy of multi-detector computed tomography (MDCT) in differentiation of between sever and non-severe pulmonary embolism groups depending on the associated cardiovascular parameters and create a simple reporting system.Patients & methods
Prospective study contained 145 patients diagnosed clinically pulmonary embolism. All patients were examined by combined electrocardiographically gated computed tomography pulmonary angiography-computed tomography venography (ECG-CTPA-CTV) using certain imaging criteria in a systematic manner.Results
Our study revealed 95 and 55 non-severe and severe pulmonary embolism groups respectively. Many cardiovascular parameters related to pulmonary embolism shows significant p value and can differentiate between sever and non-severe pulmonary embolism patients include pulmonary artery diameter, intraventricular septum flattening, bowing, superior vena cava and Azygos vein diameters, right and left ventricular diameters.Conclusion
Multi-detector computed tomography (MDCT) can be valuable to assess the severity of pulmonary embolism using the related cardiovascular parameters and leading the management strategy aim for best outcome. 相似文献16.
Shehab M. Sami Sara K. Elfawal Mohamed S. Abdelgawad Mamdouh A. Zidan Amr M. Zaki Alaa F. Mowaki 《The Egyptian Journal of Radiology and Nuclear Medicine》2018,49(1):29-41
Introduction
Data assimilated for coronary arteries angiography by MDCT with retrospective (ECG) gating could be used for LV function without the need to repeat examination.Aim of the work
Is to study left ventricular segmental motility and global function using MDCT compared to MRI.Patients and methods
Fifty patients had cardiac MDCT and MRI studies within the same hour. LVEDV and LVESV volumes were measured. Consequently, the (EF) was calculated, for wall motion analysis, cine loops evaluated by two radiologists.Results
Excellent correlation between MDCT and MRI for the measurement of EDV (r2?=?0.962; p?<?0.001), and ESV (r2?=?0.988; p?<?0.001). Evaluation of EF revealed a good correlation between MDCT and MRI (r2?=?0.984; p?<?0.001) all by linear regression analysis. All the cardiac segments that shows dyskinesia or akinesia showed agreement between MDCT and MRI in cine images, the only disagreement in cases of mild hypokinesia detected only by MRI.Conclusions
High agreement between MDCT and MRI in the study of left ventricular segmental motility and global function. 相似文献17.
Tamer W. Kassem 《The Egyptian Journal of Radiology and Nuclear Medicine》2017,48(1):141-145
Objective
The aim of this study was to monitor the incidence of complicated inferior vena cava (IVC) anomalies and evaluate the role of Multidetector Computed Tomographic Venography (MDCTV) in diagnosis and assessment of associated venous collaterals, lower limb deep venous thrombosis (DVT) or varicose veins (VV).Patients and methods
During two years duration 100 patients with clinical history and complains suggesting of DVT or VV were prospectively evaluated after performance of MDCTV examination. The images obtained were interpreted and reconstructed using dedicated software and work stations. Results were correlated with Color Doppler Ultrasound (CDUS) findings.Results
Out of 100 cases, 9 cases (9%) were diagnosed to have complicated IVC anomalies while 91 cases (91%) had either well developed IVC or common anatomical variations. 6 cases (66.7%) had complicated IVC anomalies and 3 cases (33.3%) had associated complicated common iliac veins (CIV) anomalies. 8 cases (88.9%) had associated DVT and all cases (100%) had bilateral VV. 2 cases (22.2%) had associated varicocele and 1 case (11.1%) had associated KILT syndrome.Conclusion
MDCT venography examination has a major role in diagnosis of complicated IVC anomalies and detection of associated venous collaterals, lower limb DVT or VV. 相似文献18.
Doaa M. Emara Mohamed M. El Shafei Hoda M. Abdel Naby 《The Egyptian Journal of Radiology and Nuclear Medicine》2018,49(2):408-414
Objective
The aim of this study was to assess the accuracy of ultrasound elastography as a recent imaging technique in diagnosis of CTS and evaluation of its severity in patients suffering clinically compared to the results of the gold standard electrophysiological tests.Materials and methods
This was a prospective cross sectional study included 100 patients clinically diagnosed as having unilateral idiopathic CTS (90% of the dominant hand), referred to radiology department from physical medicine department at Alexandria main university hospital from June 2015 till May 2016 after being evaluated electrophysiologically for correlation with the data of the ultrasound and ultrasound elastography of the median nerve. A control group of 100 patients with no wrist or hand complain were included in the study.Results
As diagnosed electrophysiologically, there were 44 (44%), 35 (35%) and 21 (21%) patients with mild, moderate and severe degree of CTS respectively. The mean cross sectional area of the median nerve among the studied cases was 12.19?±?1.59?mm2 while the mean strain ratio of the median nerve by ultrasound elastography was 2.20 (1.0–5.0).Conclusion
In addition to electrophysiological study, ultrasound and ultrasound elastography are valuable tools for the diagnosis and classification of CTS. 相似文献19.
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20.
Amr Farouk Ibrahim Moustafa Eman Faker Kamal Maher M. Hassan Mona Sakr Mohammed Mohammed Mohammed Gomaa 《The Egyptian Journal of Radiology and Nuclear Medicine》2018,49(1):259-264