Radiology
HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
QUICK SEARCH:   [advanced]


     

This Article
Right arrow Full Text (PDF)
Right arrow Submit a response
Right arrow Alert me when this article is cited
Right arrow Alert me when eLetters are posted
Right arrow Alert me if a correction is posted
Right arrow Citation Map
Services
Right arrow Email this article to a friend
Right arrow Similar articles in this journal
Right arrow Similar articles in PubMed
Right arrow Alert me to new issues of the journal
Right arrow Download to citation manager
Right arrow reprints & permissions
Citing Articles
Right arrow Citing Articles via HighWire
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by Ohtomo, K.
Right arrow Articles by Iio, M.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Ohtomo, K.
Right arrow Articles by Iio, M.

Radiology, Vol 155, 421-423, Copyright © 1985 by Radiological Society of North America

ARTICLES

Hepatic tumors: differentiation by transverse relaxation time (T2) of magnetic resonance imaging

K Ohtomo, Y Itai, S Furui, N Yashiro, K Yoshikawa and M Iio

Fifty-three patients who had hepatic tumors (24 hepatomas, ten metastases, and 19 cavernous hemangiomas) underwent MR imaging using a 0.35-T superconducting imager. The transverse relaxation time (T2) was calculated from a pair of spin echo images (repetition time [TR] of 1600 msec) with echo delay times (TE) of 35 and 70 msec. The computed T2 value was obtained in a fashion similar to that used to obtain CT numbers with region-of-interest cursors. The mean T2 was 59 +/- 9 msec in hepatomas, 64 +/- 15 msec in metastases, and 100 +/- 30 msec in hemangiomas. The difference between the T2 of hemangioma and that of liver malignancies was statistically significant (P less than .001); however, differentiation between hepatoma and metastases was not possible. The T2 was shorter than 80 msec in all 24 hepatomas and in nine of ten metastases, and was longer than 80 msec in 16 of 19 hemangiomas. Forty-nine of 53 cases (92%) were correctly classified when the borderline of T2 between hemangioma and hepatic malignancies was set at 80 msec. MR with T2 calculation was valuable in differentiating between hemangioma and hepatic malignancies.


This article has been cited by other articles:


Home page
 RadiologyHome page
A. S. Arbab, T. Ichikawa, H. Sou, T. Araki, H. Nakajima, K. Ishigame, T. Yoshikawa, and H. Kumagai
Ferumoxides-enhanced Double-Echo T2-weighted MR Imaging in Differentiating Metastases from Nonsolid Benign Lesions of the Liver
Radiology, October 1, 2002; 225(1): 151 - 158.
[Abstract] [Full Text] [PDF]

Home page
 Am. J. Roentgenol.Home page
R. Tello, H. M. Fenlon, T. Gagliano, V. L. S. deCarvalho, and E. K. Yucel
Prediction Rule for Characterization of Hepatic Lesions Revealed on MR Imaging: Estimation of Malignancy
Am. J. Roentgenol., April 1, 2001; 176(4): 879 - 884.
[Abstract] [Full Text] [PDF]

Home page
 Am. J. Roentgenol.Home page
G. L. Bennett, A. Petersein, W. W. Mayo-Smith, P. F. Hahn, W. Schima, and S. Saini
Addition of Gadolinium Chelates to Heavily T2-Weighted MR Imaging: Limited Role in Differentiating Hepatic Hemangiomas from Metastases
Am. J. Roentgenol., February 1, 2000; 174(2): 477 - 485.
[Abstract] [Full Text] [PDF]

Home page
 RadiologyHome page
M. Ebara, H. Fukuda, Y. Kojima, N. Morimoto, M. Yoshikawa, N. Sugiura, T. Satoh, F. Kondo, M. Yukawa, T. Matsumoto, et al.
Small Hepatocellular Carcinoma: Relationship of Signal Intensity to Histopathologic Findings and Metal Content of the Tumor and Surrounding Hepatic Parenchyma
Radiology, January 1, 1999; 210(1): 81 - 88.
[Abstract] [Full Text]


HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
RADIOLOGY RADIOGRAPHICS RSNA JOURNALS ONLINE
Copyright © 1985 by the Radiological Society of North America.