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Small intestinal tumors: diagnostic accuracy of enhanced multi-detector CT virtual endoscopy.

06:00 EDT 8th July 2011 | BioPortfolio

Summary of "Small intestinal tumors: diagnostic accuracy of enhanced multi-detector CT virtual endoscopy."


OBJECTIVE:
To study the diagnostic accuracy of enhanced multi-detector CT virtual endoscopy (MDCT-VE) for small intestinal tumors. MATERIALS AND
METHODS:
125 patients were examined by multi-detector CT (
MDCT:
54 on 4-slice; 71 on 64-slice) following standard gastrointestinal tract cleansing, oral double contrast aerogenesis agent, and rectal gas administration. Unenhanced CT was performed, followed by enhanced CT in supine (30 and 80s delay after 100 mL standard intravenous contrast medium) and prone positions (180s delay). Supplementary CT in the lateral position was performed if small bowel was not well-filled. Images were reviewed on post-processing workstations with Virtual Endoscopy software.
RESULTS:
33/125 patients had proven small intestinal tumors: ten stromal tumors, nine lymphoma, eight adenocarcinomas, three hemangiomas, one each lipoma, Brunner gland adenoma, and hamartoma. 92 were nontumors. MDCT-VE correctly identified 30/33 cases with one false-positive diagnosis: sensitivity 90.9%, specificity 98.9% and accuracy 96.8%.
CONCLUSION:
Small intestinal MDCT-VE technique has high diagnostic accuracy for the detection of intestinal tumors. Contrast enhancement and adequate intestinal tract gas-filling can improve the detection rate for small intestinal tumors.

Affiliation

Department of Radiology, Henan Province People's Hospital, Zhengzhou, China.

Journal Details

This article was published in the following journal.

Name: Abdominal imaging
ISSN: 1432-0509
Pages:

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Medical and Biotech [MESH] Definitions

Tumors or cancer of the INTESTINES.

Tumors or cancer in the JEJUNUM region of the small intestine (INTESTINE, SMALL).

Tumors or cancer in the ILEUM region of the small intestine (INTESTINE, SMALL).

Very small encapsulated gas bubbles (diameters of micrometers) that can be used as CONTRAST MEDIA, and in other diagnostic and therapeutic applications. Upon exposure to sufficiently intense ultrasound, microbubbles will cavitate, rupture, disappear, release gas content, etc. Such characteristics of the microbubbles can be used to enhance diagnostic tests, dissolve blood clots, and deliver drugs or genes for therapy.

A condition caused by the lack of intestinal PERISTALSIS or INTESTINAL MOTILITY without any mechanical obstruction. This interference of the flow of INTESTINAL CONTENTS often leads to INTESTINAL OBSTRUCTION. Ileus may be classified into postoperative, inflammatory, metabolic, neurogenic, and drug-induced.

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