q-space MR imaging of gastric carcinoma ex vivo: Correlation with histopathologic findings

9Citations
Citations of this article
24Readers
Mendeley users who have this article in their library.

This article is free to access.

Abstract

Purpose: The purpose of this study was to establish the feasibility of q-space imaging (QSI) as a method of assessing the depth of mural invasion, histologic grade, and the presence of lymph node metastasis in gastric carcinomas. Methods: A 7.0 Tesla MR imaging system was used to investigate 20 gastric specimens containing a carcinoma. QSI was performed by using the following parameters: 50–60 mm × 25–30 mm field of view, 2-mm section thickness, 256 × 128 matrix, 10 b values in the 0–7163 s/mm2 range, which corresponded to q values of 0–1026/cm, and motion-probing gradients perpendicular to the gastric wall. The MR images and the histopathologic findings were then compared. Results: The depth of tumor invasion of the gastric wall in all 20 carcinomas (100%) was established by using mean displacement, zero-displacement probability, and kurtosis maps. The QSI parameters were significantly correlated with the histologic grades of the gastric carcinomas (all P < 0.001). The QSI parameters made it possible to differentiate between metastatic and nonmetastatic lymph nodes (all P = 0.001). Conclusion: Ex vivo QSI facilitates excellent diagnostics for evaluating gastric carcinomas in terms of mural invasion, histologic grade, and the presence of lymph node metastasis. Magn Reson Med 76:602–612, 2016. © 2015 Wiley Periodicals, Inc.

Cite

CITATION STYLE

APA

Yamada, I., Hikishima, K., Miyasaka, N., Kato, K., Ito, E., Kojima, K., … Okano, H. (2016). q-space MR imaging of gastric carcinoma ex vivo: Correlation with histopathologic findings. Magnetic Resonance in Medicine, 76(2), 602–612. https://doi.org/10.1002/mrm.25905

Register to see more suggestions

Mendeley helps you to discover research relevant for your work.

Already have an account?

Save time finding and organizing research with Mendeley

Sign up for free