-transparent.png){kind=logo}
Twenty-two patients with breast cancers were studied using magnetic resonance (MR) imaging with a cylindrical surface coil at 1.5 Tesla. All were examined with the FE sequence and Gd-DTPA as a contrast medium. These images were compared with micrographs of the specimens. All cancers were enhanced clearly, and demarcated margins or spiculations of the tumors were seen as clearly on MR images as on micrographs of the specimens. In 12 patients (9 carcinomas, 2 fibroadenomas and 1 benign phyllodes tumor), dynamic studies were performed after the intravenous injection of Gd-DTPA. All nine carcinomas showed enhancement characterized by a sudden increase in signal intensity on the order of 100% or more within the first 2 minutes after injection. Two fibroadenomas were enhanced slowly. Thirteen patients with breast cancers were examined with several sequences (FE, T1-weighed SE, T2-weighed SE and STIR) with or without Gd-DTPA. The most clearly delineated images of the tumors were those of FE images with Gd-DTPA enhancement. A phantom constituted of various concentrations of Gd-DTPA in 20% albumin solution was measured by signal intensities with T1-weighted SE sequence and FE sequence. The ratio of enhancement of the 20% albumin solution relative to the Gd-DTPA concentration was higher with the FE sequence than with the SE sequence. The sensitivity of the FE sequence to Gd-DTPA enhancement was 1.5 times that of the SE sequence under the usual concentration of Gd-DTPA.
Y Ikeda, and
I Narabayashi, and
S Yoshida, and
T Motohara, and
T Koizumi, and
K Ogawa, and
C Mieda, and
E Ueda, and
S Hirota, and
T Oshitani
November 2014,
Liver international : official journal of the International Association for the Study of the Liver,
Y Ikeda, and
I Narabayashi, and
S Yoshida, and
T Motohara, and
T Koizumi, and
K Ogawa, and
C Mieda, and
E Ueda, and
S Hirota, and
T Oshitani
January 2015,
The Journal of urology,
Y Ikeda, and
I Narabayashi, and
S Yoshida, and
T Motohara, and
T Koizumi, and
K Ogawa, and
C Mieda, and
E Ueda, and
S Hirota, and
T Oshitani
November 1994,
Presse medicale (Paris, France : 1983),
Y Ikeda, and
I Narabayashi, and
S Yoshida, and
T Motohara, and
T Koizumi, and
K Ogawa, and
C Mieda, and
E Ueda, and
S Hirota, and
T Oshitani
January 2012,
Voprosy onkologii,
Y Ikeda, and
I Narabayashi, and
S Yoshida, and
T Motohara, and
T Koizumi, and
K Ogawa, and
C Mieda, and
E Ueda, and
S Hirota, and
T Oshitani
December 2014,
Ultrasound quarterly,
Y Ikeda, and
I Narabayashi, and
S Yoshida, and
T Motohara, and
T Koizumi, and
K Ogawa, and
C Mieda, and
E Ueda, and
S Hirota, and
T Oshitani
February 1983,
Lakartidningen,
Y Ikeda, and
I Narabayashi, and
S Yoshida, and
T Motohara, and
T Koizumi, and
K Ogawa, and
C Mieda, and
E Ueda, and
S Hirota, and
T Oshitani
October 2021,
Journal of ultrasound in medicine : official journal of the American Institute of Ultrasound in Medicine,
Y Ikeda, and
I Narabayashi, and
S Yoshida, and
T Motohara, and
T Koizumi, and
K Ogawa, and
C Mieda, and
E Ueda, and
S Hirota, and
T Oshitani
February 1995,
AJR. American journal of roentgenology,
Y Ikeda, and
I Narabayashi, and
S Yoshida, and
T Motohara, and
T Koizumi, and
K Ogawa, and
C Mieda, and
E Ueda, and
S Hirota, and
T Oshitani
August 2016,
Clinical & translational oncology : official publication of the Federation of Spanish Oncology Societies and of the National Cancer Institute of Mexico,
Y Ikeda, and
I Narabayashi, and
S Yoshida, and
T Motohara, and
T Koizumi, and
K Ogawa, and
C Mieda, and
E Ueda, and
S Hirota, and
T Oshitani
May 2007,
Radiology,
