CT ENTEROGRAPHY THESIS

In addition, a single examination can assess severity, extent and location of disease, coupled with extraluminal manifestations and complications. Transabdominal ultrasonography of the small bowel. Recent development of innovative techniques such as the adaptive statistical iterative reconstruction algorithm are promising and will probably provide diagnostic-quality CT images at significantly reduced radiation doses in the near future [ 58 ]. Computed tomography of the bowel: Zakeri N, Pollok RC. Multidetector CT of the small bowel:

Again, the usual high image quality of CT enterography makes it superior to MRI enterography for the investigation of chronic blood loss. Several authors have subsequently described similar techniques, which are broadly categorised into CT enterography where patients drink oral contrast and CT enteroclysis luminal contrast is introduced via a nasojejunal tube placed fluoroscopically prior to CT examination. Gastroenterologic and radiologic approach to obscure gastrointestinal bleeding: Multiplanar helical CT enterography in patients with Crohn’s disease. Methods Patients From August 1, , to December 31, , patients with suspected or known small bowel diseases who underwent both CTE and DBE via anal examinations were prospectively enrolled in our study in Ruijin Hospital. Compare the normal enhancement of the unaffected small bowel short arrow.

CT enterography: review of technique and practical tips

They observed poor distension in only 2 of the patients [ 6 ]. Unlike endoscopic entetography, does not depict subtle mucosal changes. Detection of suspected small bowel bleeding: The six selectable options were discomfort of the bowel preparation, ingesting large amount of mannitol, radiation exposure, prolonged time duration of the test, high cost, and slow recovery of bowel function after the exam.

Gastrointestinal inflammation after bone marrow transplantation: One hundred and seven patients completed our study. Features and perspectives of MR enterography for pediatric Crohn disease assessment.

ct enterography thesis

Focal small bowel spasm is frequently encountered, despite the use of Buscopan, and can mimic short strictures. Use of a multiplanar review will improve accuracy of both luminal navigation and interpretation [ 2 ]. The differential diagnosis for abnormal small bowel is wide. The technique of CT enterography combines small bowel distension with a neutral or low-density oral contrast mixture and abdomino-pelvic CT examination during the enteric phase following administration of intravenous contrast.

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[Full text] Comparison of patients’ tolerance between computed tomography enterogr | PPA

Coronal CT enterography image showing mural thickening and mucosal hyperenhancement long arrows. With the rapid development of endoscopic techniques and radiologic approaches, there are multiple new diagnostic tools available for doctors to better evaluate the small bowel, among which include computed tomography enterography CTE and double-balloon enteroscopy DBE.

Bowel cleansing was performed with a single dose of 2 L PEG electrolytes powder on the day before the examination.

ct enterography thesis

This paper will critically review the CT enterography technique and provide practical tips on interpretation to assist radiologists entterography help them avoid common interpretative pitfalls.

Biphasic CT with mesenteric CT angiography in the evaluation of acute mesenteric ischemia: CT enterography allows simultaneous assessment of the small and large bowel, and extraluminal enterovraphy. As a result, a single CT enterography may eliminate the need for multiple radiological tests, thus improving diagnostic and cost efficiency, improving patient compliance and ultimately reducing radiation dose [ 1 ].

One week after DBE, the patients were asked to fill in another questionnaire Figure S2which consisted of three parts.

J Gen Intern Med. Radiological findings of Crohn’s disease at CT enterography include mucosal hyperenhancement, mural thickening and stratification, transmural ulceration, mesenteric inflammation, engorgement of vasa recta and strictures associated with upstream dilatation Figure 4.

Anecdotally, we have noted a significant learning curve for this technique, and therefore advocate additional interpretation time to ensure complete luminal navigation and thorough assessment of all bowel segments and the adjacent mesentery. Note the absence of any associated changes.

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The full terms of this license are available at https: Adequate jejunal distension is a recurrent challenge, but anecdotally this does not seem to have impaired diagnostic performance in our centre. To avoid intravenous contrast-induced nephropathy, we limit the use of CT enterography in frail and diabetic patients.

ct enterography thesis

Crohn’s disease predominantly involves the mesenteric border of the small bowel, frequently leading to asymmetric inflammation and fibrosis, with pseudosacculation of the antimesenteric border. Patients were asked to drink 2, mL 2.

They were asked to fill out a questionnaire evaluating discomfort of the procedure after each examination. Use of small bowel imaging for the diagnosis and staging of Crohn’s disease—a survey of current UK practice. The authors believe that CT enterography is an appropriate technique when used judiciously in the right patient groups.

CT enterography: review of technique and practical tips

Gastrointestinal stromal tumour can be benign or malignant. An effective and safe sedation technique combining target-controlled infusion pump with propofol, intravenous pentazocine, and bispectral index monitoring for peroral double-balloon endoscopy.

Gastrointestinal bleeding Again, the usual high image quality of CT enterography makes it superior to MRI enterography for the investigation of chronic blood loss. Cost-effectiveness and patient tolerance of low-attenuation oral contrast material: Patients who undergo CTE ingest a certain amount of neutral contrast agents before the procedure, which enables luminal distention and allows enterovraphy better view of the entire small bowel.