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1.

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   

2.

Aim of work

To evaluate the role of ultrasound and color Doppler in diagnoses and predicting the outcome of necrotising enterocolitis patients at neonatal ICU.

Subjects and methods

Thirty neonates clinically diagnosed with NEC were examined, 51 ultrasound examinations were done including color Doppler sonography and findings were compared with laboratory data, clinical picture, staging, abdominal radiography and patient's outcome.

Results

Bloody stools and abdominal discoloration correlated with highest risk, low PH and neutropenia and increased DAAS score matched poor outcome. echoegnic free fluid, thin bowel wall, absent wall perfusion, aprestalsis, dilated anechoic bowel, increased bowel perfusion and pneumatoses intestinalis matched adverse outcome. sonographic signs of pneumatoses intestinalis interrelated with radiographic signs.

Conclusion

US was found to be highly sensitive and specific in diagnosing, staging and predicting the outcome of NEC patients, based on group of findings that were categorized per their risk ratio and correlated with outcome.  相似文献   

3.
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   

4.

Objective

This work aimed for detection of different congenital and acquired abnormalities affecting the pulmonary veins using multislice computed tomography (MSCT).

Patients and methods

This study was carried on 74 patients. Cases were referred to Radiology department of Kasr Al-Ainy with different chest complaints for MSCT and only cases showing pulmonary venous abnormalities were included in this study. All patients underwent MSCT of the chest using different MSCT protocols according to the initial presentation of the patient.

Results

This study included 74 patients with pulmonary veins abnormalities; congenital anomalies of the pulmonary veins were observed in 36.4% of cases and acquired abnormalities in 62.2% of cases, one case had both congenital and acquired pulmonary vein abnormalities (1.4%). The most common congenital anomaly was pulmonary vein varices while the most common acquired abnormality was pulmonary vein stenosis or obstruction.

Conclusion

The presence of different pulmonary venous abnormalities can be easily delineated using MSCT, with its MPR capability, as it provides excellent resolution and a large field of view.  相似文献   

5.

Aim

To evaluate the role of MRI in detecting possible causes of incontinence in patients with anorectal malformations after the initial corrective surgery.

Materials and methods

The study included 17 patients; age ranged from 1 to 18?years. T1 and T2 weighted images were obtained in axial, coronal and sagittal planes, sequences were obtained without fat saturation to easily identify low signal muscles against high signal fat.

Results

MRI accurately assessed the grade of development of sphincter muscles; muscles graded as good in 4 patients, fair in 2 patients, poor in 5 patients and 3 cases had asymmetrical muscles. The position of pulled through bowel was laterally mislocated to the left side of the sphincter muscles in 2 cases and was anteriorly mislocated in 5 cases. Inadvertently placed mesenteric fat around the pulled through bowel was depicted in 10 out of 17 patients. Associated anomalies of the vertebral column, spinal cord and urogenital system was depicted in 11 patients. One case had classical caudal regression syndrome.

Conclusion

MRI is very useful in the postoperative assessment in patients with anorectal malformations. It plays an important role in diagnosis of possible causes of incontinence, postoperative complications and detecting associated anomalies in one study.  相似文献   

6.
7.

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   

8.

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   

9.

Objectives

To evaluate accuracy of computed tomography angiography (CTA) in evaluation of post traumatic renal vascular injury.

Patients and methods

38 patients were presented with post traumatic intermittent or persistent hematuria. Renal CTA and digital subtraction angiography (DSA) were done for all patients.

Results

CTA demonstrated pseudoaneurysm (PA) in 30 patients (78.9%) and no vascular lesions in 8 patient (21.1%). CTA had 86.11% sensitivity and 50% specificity in detection of post traumatic renal pseudoaneurysms, CTA missed diagnosis of renal arteriovenous fistula (RAVF) in 10 patients which discovered later by DSA.

Conclusion

CTA with MIP as non invasive technique widely replaced renal DSA in detection of posttraumatic renal pseudoaneurysm. Renal DSA is still best modality in detection of RAVF and also has the upper hand in planning of selective renal artery embolization for the management of persistent or delayed hemorrhage from renal vessels.  相似文献   

10.

Purpose

To analyze the diagnostic value of multi-detector CT enterography (MDCTE) in identifying small bowel causes of acute non traumatic abdominal pain and in determining the extent of bowel lesion.

Patients and methods

A total of 73 patients (42 males and 31 females aged from 12 to 85?years) who presented with acute non traumatic abdominal pain and were evaluated with computed tomography enterography (MDCTE) between August 2014 and July 2017 were enrolled in the study. The diagnostic value of MDCTE was analyzed by using the results of other imaging modalities, endoscopy, surgery, pathology and clinical follow-up as the reference standards.

Results

MDCTE correctly made the diagnosis in 66 of 73 patients (true positive), 7 cases were missed by CTE findings (false negative cases) and one case of ileus was falsely diagnosed as small bowel obstruction with an overall sensitivity of 90%, specificity?=?93%, PPV?=?98%, NPV?=?71%. The diagnostic accuracy of each CT sign was calculated independently for each underlying etiology.

Conclusion

The use of MDCTE may be of significant value in identifying the cause of acute abdominal pain of small bowel etiology, in determining disease activity in inflammatory causes and identifying the level and cause of obstruction in SBO.  相似文献   

11.

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   

12.

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   

13.

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   

14.

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   

15.

Background

Currarino recognized a triad of congenital malformations of the hindgut and the sacrococcygeal spine as a distinct syndrome. A characteristic radiological sign described as scimitar sacrum is pathognomonic of the syndrome. A radiograph of the pelvis requested for some other reason may detect the typical scimitar detect in the lower sacrum and the coccyx.

Case

We report a case of a ten year old girl with recurrent pre-sacral abscess in whom the diagnosis of Currarino syndrome was suspected on plain radiography and confirmed on CT/MRI. To the best of our knowledge this is the second case of Currarino Syndrome being diagnosed in a patient following presentation as a presacral abscess.

Conclusion

The clinical features, unique radiologic appearance, and importance of a correct diagnosis of the Currarino triad are discussed which often requires inter-departmental cooperation for correct diagnosis and management.  相似文献   

16.

Introduction

Endometrial polyps are a common cause of abnormal uterine bleeding. Ultrasound is the most accepted investigation to evaluate them. However, the diagnosis can be difficult and even missed on transabdominal and grayscale imaging. Our study aims to assess the evaluation of endometrial polyps on transvaginal color Doppler.

Patients and methods

A prospective study with performance of transvaginal Doppler and saline infusion sonohysterography with histopathological correlation.

Results

The pedicle artery sign on transvaginal color Doppler sonography was found to have sensitivity of 86.67%, accuracy of 86.67% and positive predictive value of 100%.

Conclusion

Addition of Doppler to transvaginal sonography and Saline infusion Sonohysterography improves characterization and diagnosis of endometrial lesions.  相似文献   

17.

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   

18.

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   

19.

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   

20.

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   

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