CT gastrography (protocol)
Updates to Article Attributes
Body
was changed:
Computed tomographic (CT) gastrography, also called virtual gastroscopy (VG), is a non invasive procedure for the detection of gastric abnormalities.
Advantages
- rapid and non invasive exam.
- it offers information about local tumor invasion, lymph node and distant metastasis in cases of gastric cancer.
Indications
- early detection of gastric carcinoma.
- to examine gastric abnormalities e.g. hiatus hernia, polyps & ulcers.
- post surgical assessment of the stomach.
Technique
- patient preparation, fasting at least 8 hours before the exam.
- bowel distension, optimal gastric distention is a fundamental prerequisite for CT gastrography data evaluation, collapsed gastric wall may mimic disease or obscure underlying pathology.
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Negativenegative oral contrast medium with effervescent granules is effective for optimal gastric distension.
Data acquisition and analysis
- CT scanning is ideally performed on a multi-detector computed tomography (MDCT) with a thin collimation.
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Datadata interpretation with the use of two-dimensional (2D) & three dimensional (3D) displays for proper evaluation.
-<li>Negative oral contrast medium with effervescent granules is effective for optimal gastric distension.</li>- +<li>negative oral contrast medium with effervescent granules is effective for optimal gastric distension.</li>
-<li>Data interpretation with the use of two-dimensional (2D) & three dimensional (3D) displays for proper evaluation.</li>- +<li>data interpretation with the use of two-dimensional (2D) & three dimensional (3D) displays for proper evaluation.</li>
References changed:
- 1. Kim JH, Eun HW, Choi JH et-al. Diagnostic performance of virtual gastroscopy using MDCT in early gastric cancer compared with 2D axial CT: focusing on interobserver variation. AJR Am J Roentgenol. 2007;189 (2): 299-305. <a href="http://dx.doi.org/10.2214/AJR.07.2201">doi:10.2214/AJR.07.2201</a> - <a href="http://www.ncbi.nlm.nih.gov/pubmed/17646454">Pubmed citation</a><span class="auto"></span>
- 2. Chen CY, Kuo YT, Lee CH et-al. Differentiation between malignant and benign gastric ulcers: CT virtual gastroscopy versus optical gastroendoscopy. Radiology. 2009;252 (2): 410-7. <a href="http://dx.doi.org/10.1148/radiol.2522081249">doi:10.1148/radiol.2522081249</a> - <a href="http://www.ncbi.nlm.nih.gov/pubmed/19487467">Pubmed citation</a><span class="auto"></span>
- 3. Inamoto K, Kouzai K, Ueeda T et-al. CT virtual endoscopy of the stomach: comparison study with gastric fiberscopy. Abdom Imaging. 2005;30 (4): 473-9. <a href="http://dx.doi.org/10.1007/s00261-004-0278-0">doi:10.1007/s00261-004-0278-0</a> - <a href="http://www.ncbi.nlm.nih.gov/pubmed/15688107">Pubmed citation</a><span class="auto"></span>
- 1.Kim JH, Eun HW, Choi JH et-al. Diagnostic performance of virtual gastroscopy using MDCT in early gastric cancer compared with 2D axial CT: focusing on interobserver variation. AJR Am J Roentgenol. 2007;189 (2): 299-305. <a href="http://dx.doi.org/10.2214/AJR.07.2201">doi:10.2214/AJR.07.2201</a> - <a href="http://www.ncbi.nlm.nih.gov/pubmed/17646454">Pubmed citation</a><span class="auto"></span>
- 2.Chen CY, Kuo YT, Lee CH et-al. Differentiation between malignant and benign gastric ulcers: CT virtual gastroscopy versus optical gastroendoscopy. Radiology. 2009;252 (2): 410-7. <a href="http://dx.doi.org/10.1148/radiol.2522081249">doi:10.1148/radiol.2522081249</a> - <a href="http://www.ncbi.nlm.nih.gov/pubmed/19487467">Pubmed citation</a><span class="auto"></span>
- 3.Inamoto K, Kouzai K, Ueeda T et-al. CT virtual endoscopy of the stomach: comparison study with gastric fiberscopy. Abdom Imaging. 2005;30 (4): 473-9. <a href="http://dx.doi.org/10.1007/s00261-004-0278-0">doi:10.1007/s00261-004-0278-0</a> - <a href="http://www.ncbi.nlm.nih.gov/pubmed/15688107">Pubmed citation</a><span class="auto"></span>
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