scholarly journals Role of Computed Tomography (CT) Enterography in the Evaluation of Small Bowel Diseases

2021 ◽  
Vol 10 (20) ◽  
pp. 1451-1456
Author(s):  
Fawaz Yousuf ◽  
Sanjay Sethi ◽  
Ranjana Gupta ◽  
Sandeep Joshi ◽  
Puneet Mittal ◽  
...  

BACKGROUND Small bowel imaging often questions clinicians due to its long, tortuous and undulating morphology. The current study was undertaken to establish the efficacy of multidetector computed tomography (MDCT) enterography in the evaluation of small bowel diseases using iso-osmotic mannitol as oral contrast agent. METHODS A prospective observational study was conducted among thirty patients (mean age 40 years; range 14 - 66 years), 16 males and 14 females presenting with clinical suspicion of small bowel diseases based on clinical, laboratory or other imaging investigations underwent CT enterography on a 128 slice CT scanner using isoosmotic mannitol as neutral enteral contrast. RESULTS Intestinal tuberculosis was the most common diagnosis. Non neoplastic cases predominantly showed segmental symmetrical involvement with target pattern of enhancement. Small bowel tumours (adenocarcinoma) were seen in 2 cases. Neoplasms were associated with focal asymmetrical involvement with heterogeneous enhancement pattern. Computerized tomography enterography (CTE) clearly depicted the site, level and cause of the obstruction in all the patients with a sensitivity and specificity of 96 % and 100 % respectively. Diagnostic accuracy of CTE in detection of small bowel diseases came out to be 98 %. CONCLUSIONS CT enterography is an effectual, non-invasive, well-tolerated, sensitive and specific imaging modality for the evaluation of small bowel diseases which provides superior assessment of the intraluminal, mural and extraintestinal pathologies. KEY WORDS CT enterography, mannitol, Tuberculosis, Small Bowel

2016 ◽  
Vol 2016 ◽  
pp. 1-6 ◽  
Author(s):  
Jingjing Wang ◽  
Qiaozhen Guo ◽  
Jianping Zhao ◽  
Mei Liu ◽  
Guangquan Liao ◽  
...  

Aim. To compare the diagnostic value of multidetector CT enterography (MDCTE) and double-balloon enteroscopy (DBE) for patients with suspected small bowel diseases.Methods. From January 2009 to January 2014, 190 patients with suspected small bowel diseases were examined with MDCTE and DBE. The characteristics of the patients, detection rates, diagnostic yields, sensitivity, specificity, positive predictive value, and negative predictive value were described and analyzed.Results. The overall detection rates of DBE and MDCTE were 92.6% and 55.8%, respectively (P<0.05), while the overall diagnostic yields were 83.2% and 33.7%, respectively (P<0.05). The sensitivity, specificity, positive predictive value, and negative predictive value of DBE were all higher than those of MDCTE. DBE had a higher diagnostic yield for OGIB (87.3% versus 20.9%,P<0.05). The diagnostic yields of DBE were higher than those of MDCTE for inflammatory diseases, angioma/angiodysplasia, and diverticulums, while being not for gastrointestinal tumors/polyps.Conclusions. The diagnostic value of DBE for small bowel diseases is better than that of MDCTE as a whole, but if gastrointestinal tumors are suspected, MDCTE is also needed to gain a comprehensive and accurate diagnosis.


2015 ◽  
Vol 66 (2) ◽  
pp. 140-144 ◽  
Author(s):  
Francois Leduc ◽  
Anirban De ◽  
Ryan Rebello ◽  
Narry Muhn ◽  
George Ioannidis

Purpose To assess the efficacy of a variety of oral contrast agents in obtaining small bowel distention for computed tomography (CT) enterography examinations. Methods A retrospective study was developed to quantitatively assess small bowel luminal distension during CT enterography by using 4 contrast agents, which included water, Metamucil, polyethylene glycol, and lactulose. A total of 256 patients were enrolled in the study and included 64 individuals for each oral regimen. The widest loop of small bowel in each of 4 quadrants on representative coronal images was separately measured for luminal distension. Overall distension and the greatest number of “useful” quadrants were evaluated. Overall distension was calculated by summing the 4 quadrant values into an overall luminal diameter distention score (cm). A “useful” quadrant was defined as having a measurement of ≥2 cm. Each “useful” quadrant was assigned a score of 1, with values that ranged from 0-4. Results For overall distension, multivariable liner regression analysis showed that the lactulose group had a significantly higher overall distension value than Metamucil, polyethylene glycol, and water by 0.88, 0.92, and 1.63 cm, respectively, with 95% confidence interval. The categorical multivariable logistic regression analysis showed that the lactulose group had greater odds of having more “useful” quadrants than the Metamucil, polyethylene glycol, and water groups, with odds ratios of 3.51, 2.68, and 9.19, respectively. Conclusion Lactulose achieves better small bowel distension for CT enterography studies than the other 3 agents and, therefore, is the preferred oral regimen at our institution.


Author(s):  
Ritu N. Misra ◽  
Sunil Kr. Bajaj

Background: Small bowel pathologies are an enigma for clinicians and difficult to assess and evaluate for clinicians. In order to establish the efficacy of MDCT Enterography in diagnostic characterisation of small bowel lesions, the current study was undertaken.Methods: A prospective observational cross-sectional study was carried out in a tertiary care hospital. 30 patients with clinically suspected small bowel disease underwent CT enterography using iso-osmotic mannitol as neutral enteral contrast. CT enterography diagnoses were compared with clinical, surgical and histopathological results.Results: CT enterography showed a sensitivity (95.83%), specificity (100%), positive predictive value (100%), negative predictive value (85.71%), accuracy (96.66%) in diagnosis of small bowel diseases.Conclusions: CTE is a non-invasive well tolerated and reliable imaging modality for the depiction of small-bowel diseases. It provides excellent visualization of luminal, mural and extraintestinal findings.


2020 ◽  
Vol 10 (4) ◽  
pp. 16-29
Author(s):  
E. G. Koshelev ◽  
S. V. Kitayev ◽  
G. Yu. Belyaev ◽  
A. A. Egorov ◽  
Olga O. Kurzantseva

Introduction. The relevance of the study is caused by the difficulties in diagnosing diseases of the small bowel (SB). Due to the prevalence and widespread introduction of X-ray computed tomography (CT) into clinical practice, its capabilities in the diagnosis of small bowel diseases are of great interest and potential. Objective. to reveal the possibilities of computed tomography using intravenous bolus contrast enhancement in identifying the symptom of wall thickening of the small bowel and its prognostic significance in various nosologies. Methods. Analysis of the data from MSCT studies performed according to the Protocol for the study of abdominal organs using intravenous bolus contrast enhancement and oral water intake in adult patients from 18 to 87 years of age with small bowel diseases. Results. The article shows the possibilities of multispiral computed tomography performed according to the standard Protocol in detecting thickening of the SB wall. The range of diseases was determined for which thickening of the SB wall was one of the main radiological symptoms of the lesion. The prognostic significance of this radiological symptom is presented. The features of thickening of the intestinal wall in various diseases and other distinctive features that can be used in the differential diagnosis are described. Conclusion. Thickening of the wall is a common sign of SB damage, which is convincingly detected in CT studies with bolus contrast enhancement. In our study, the common causes of thickening of the SB wall in primary disease were: Crohn's disease (37%), lymphoma (20%) and anastomosis (13%). However, we determined thickening of the SB wall as a result of primary tumors (adenocarcinoma, sarcoma) in 7% and as a result of a secondary tumor lesion in 18.6% of cases. The considered diseases were different in the degree of thickening of the intestinal wall (from 6 to 70 mm), its spreading (focal thickening 48%; segmental 52%), number of affected areas (from 1 to 3) of their localization (proximal-middle or distal section), form of the transition area from the affected part of the intestine to the unchanged one (sharply defined or smooth), the presence or absence of symptoms of intestinal obstruction, and the features of contrast enhancement (severity and type).


Radiology ◽  
2016 ◽  
Vol 279 (2) ◽  
pp. 420-431 ◽  
Author(s):  
Gabriele Masselli ◽  
Marco Di Tola ◽  
Emanuele Casciani ◽  
Elisabetta Polettini ◽  
Francesca Laghi ◽  
...  

2020 ◽  
Vol 10 (1) ◽  
pp. 110-123
Author(s):  
E.G. Koshelev ◽  
◽  
S.V. Kitayev ◽  
G.Yu. Belyaev ◽  
A.A. Egorov ◽  
...  

Author(s):  
Doaa M. Emara ◽  
Khaled M. Moghazy ◽  
Galal M. Abouelnagah ◽  
Ahmed H. Amer

Abstract Background The diagnosis of acute small bowel diseases is one of the challenging issues that confronted by the radiologists so accurate diagnosis is essential to determine the appropriate way of management. CT has become the preferred imaging tool to evaluate acute small bowel diseases. Our study aimed to assess the role of MDCT in evaluation of acute abdomen secondary to small bowel origin by identification and differentiation between different acute small bowel pathologies. Results Thirty-eight patients presented with acute abdomen of small bowel origin from June 2019 to September 2019. The mean age of incidence was 48 ± 19 years ranged from 4 to 88 years. Males represented by 23 patients (60.5%). Acute exacerbation of inflammatory bowel diseases (Crohn’s disease) represented by (34.2%), small bowel obstruction (31.6%), ischemic bowel diseases (21.1%), small bowel perforation (10.5%) and infectious (TB enteritis) small bowel disease (2.6%). MDCT had an overall high sensitivity (97.3%) in assessment of acute small bowel diseases in correlation with post-operative data and follow-up response to management. Conclusions MDCT is a reliable diagnostic imaging tool for assessment of patients with acute abdomen secondary to small bowel origin with high-efficiency in differentiation between different pathological entities that causing acute abdomen.


QJM ◽  
2020 ◽  
Vol 113 (Supplement_1) ◽  
Author(s):  
S M Elgaafary ◽  
A F Abdelghany ◽  
W R Ali ◽  
M Salah ◽  
H F Youssief

Abstract The small bowel has always been considered a difficult structure for evaluation, because of its extensive length, its position in the digestive tract, its tortuosity and over lapping loops Purpose of this work is to study elteht of CT Enterography in the assessment of different small bowel diseases. CT Enterography offers superior small bowel visualization compared to standard Abdomino-pelvic CT and provides complementary diagnostic information to capsule endoscopy and MR Enterography more over it can detect the extraluminal pathology Purpose of this work is to study elt eht of CT Enterography in the assessment of different small bowel diseases. Patients & methods the study was performed over 43 patients. Complaining from abdominal pain, chronic diarrhea, loss of weight and recurrent vomiting .all patient had full clinical assessment and laboratory investigations. Results were compared to the upper and lower GIT endoscopies as well as laboratory and histopathology results. Results the most frequent finding were inflammatory bowel disease with95% sensitivity, neoplastic with sensitivity 92%, malabsorption 83.4% sensitivity and vascular diseases Conclusion CT Entrography is a safe well tolerated imaging technique that represents simple and effective method in assessment of different small bowel diseases as it is sensitive to early intestinal wall changes and evaluating the associated mesenteric and extra intestinal alterations as well


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