Abstract
The purpose of this study was to evaluate usefulness of right lateral position CT in determining invasion of gastric cancer into adjacent organs. We assessed whether position shift, a change in the relative location of a gastric tumor and adjacent organs between the supine position and right lateral position CT, was a useful sign for absence of invasion into perigastric organs. In 37 patients with advanced gastric cancer with doubtful invasion into adjacent organs by conventional CT after 500 ml water oral intake, additive right lateral CT was performed. Of 24 cases of lesions in the gastric body, 16 had a position shift and no invasion into adjacent organs at surgery (T3), and 8 had no position shift and invasion (T4). The accuracy was 100%. Six gastric cardial and 7 pyloric tumors showed no position shift, and 3 cardial and 2 pyloric tumors were proved to be noninvasive (T3). The accuracy of cardial and pyloric tumor was 50 and 71%. We concluded that position shift may be useful in the diagnosis of invasion of adjacent organs by gastric cancer, limited to in cases with gastric body cancer.
Similar content being viewed by others
References
Raptopoulos V (1989) Technical principles in CT evaluation of the gut. Radiol Clin North Am 27: 631–651.
Angelelli G, Macarini L, Fratello A (1987) Use of water as an oral contrast agent for CT study of the stomach. AJR 149: 1084.
Baert AL, Roex L, Marchal G, Hermans P, Dewilde D, Wilms G (1989) Computed tomography of the stomach with water as an oral contrast agent: technique and preliminary results. J Comput Assist Tomogr 13: 633–636.
Cho JS, Kim JK, Rho SM, Lee HY, Jeong HY, Lee CS (1994) Preoperative assessment of gastric carcinoma: value of two-phase dynamic CT with mechanical IV injection of contrast material. AJR 163: 69–75.
Minami M, Kawauchi N, Itai Y, Niki T, Sasaki Y (1992) Gastric tumors: radiologic-pathologic correlation and accuracy of T staging with dynamic CT. Radiology 185: 173–178.
Hori S, Tsuda K, Murayama S, Matsushita M, Yukawa K, Kozuka T (1992) CT of gastric carcinoma: preliminary results with a new scanning technique. Radiographics 12: 257–268.
Sussman SK, Halvorsen RA, Illescac FF, Cohan RH, Saeed M, Silverman PM, Thompson WM, Meyers WC (1988) Gastric adenocarcinoma: CT versus surgical staging. Radiology 167: 335–340.
Botet JF, Lightdale CJ, Zauber AG, Gerdes H, Winawer SJ, Urmacher C, Brennan MF (1991) Preoperative staging of gastric cancer: comparison of endoscopic US and dynamic CT. Radiology 181: 426–432.
Matsushita M, Oi H, Murakami T, Takata N, Kim T, Kishimoto H, Nakamura H, Okamoto S, Okamura J (1994) Extraserosal invasion in advanced gastric cancer: evaluation with MR imaging. Radiology 192: 87–91.
Author information
Authors and Affiliations
Additional information
Correspondence to: T. Shirakawa
Rights and permissions
About this article
Cite this article
Shirakawa, T., Fukuda, K. & Tada, S. New method for evaluation of perigastric invasion of gastric cancer by right lateral position CT. Eur. Radiol. 6, 358–361 (1996). https://doi.org/10.1007/BF00180611
Received:
Revised:
Accepted:
Issue Date:
DOI: https://doi.org/10.1007/BF00180611