scholarly journals Intrahepatic cholangiocarcinoma: spin-echo and contrast-enhanced dynamic MR imaging.

1993 ◽  
Vol 161 (2) ◽  
pp. 313-317 ◽  
Author(s):  
Z M Fan ◽  
Y Yamashita ◽  
M Harada ◽  
Y Baba ◽  
H Yamamoto ◽  
...  
Keyword(s):  
Mr Imaging ◽  
Intrahepatic Cholangiocarcinoma ◽  
Spin Echo ◽  
Dynamic Mr Imaging ◽  
Contrast Enhanced ◽  
Dynamic Mr

Differential diagnosis of focal liver lesions: role of spin-echo and contrast-enhanced dynamic MR imaging.

Radiology ◽  
1994 ◽  
Vol 193 (1) ◽  
pp. 59-65 ◽  
Author(s):  
Y Yamashita ◽  
Y Hatanaka ◽  
H Yamamoto ◽  
A Arakawa ◽  
T Matsukawa ◽  
...  
Keyword(s):  
Differential Diagnosis ◽  
Mr Imaging ◽  
Spin Echo ◽  
Focal Liver Lesions ◽  
Liver Lesions ◽  
Dynamic Mr Imaging ◽  
Contrast Enhanced ◽  
Dynamic Mr

Contrast-Enhanced Dynamic MR Imaging of Postmolar Gestational Trophoblastic Disease

1995 ◽  
Vol 36 (2) ◽  
pp. 188-192 ◽  
Author(s):  
Y. Yamashita ◽  
M. Torashima ◽  
M. Takahashi ◽  
H. Mizutani ◽  
K. Miyazaki ◽  
...  
Keyword(s):  
Mr Imaging ◽  
Spin Echo ◽  
Gestational Trophoblastic Disease ◽  
Initial Examination ◽  
Trophoblastic Disease ◽  
Dynamic Mr Imaging ◽  
Contrast Enhanced ◽  
Β Hcg ◽  
Conventional Spin Echo ◽  
Dynamic Mr

Conventional spin-echo (SE) and contrast-enhanced dynamic MR imaging were performed on a 1.5 T superconductive unit for evaluation of myometrial lesions in postmolar gestational trophoblastic disease (GTD) in 10 women. MR imaging was done at the time of the initial examination (n=10), during (n=6), and after repeated courses of chemotherapy (n=10). The T2-weighted SE image revealed an enlarged uterus (n=7), disappearance of zonal anatomy (n=6), and heterogeneous signal intensities (n=8) with prominent flow voids (n=7). However, these abnormalities remained after repeated courses of chemotherapy, when the S-β-HCG level returned to the normal range. Myometrial lesions characteristically had marked enhancement with areas of unenhancement on dynamic MR images in patients with highly elevated S-β-HCG. Areas of contrast enhancement correlated with changes in S-β-HCG level. The enhancement was reduced with decrease in S-β-HCG level after repeated courses of chemotherapy. Six of 8 masses seen on T2-weighted images proved to be active trophoblastic lesions and 2 masses proved to be hematoma or necrosis. In 2 patients, abnormal myometrial lesions were detected only on contrast-enhanced dynamic MR imaging. These preliminary data indicate that contrast-enhanced dynamic MR imaging more clearly demonstrates myometrial involvement of postmolar GTD than conventional SE imaging.

scholarly journals Contrast-Enhanced Dynamic MR Imaging of Postmolar Gestational Trophoblastic Disease

1995 ◽  
Vol 36 (2) ◽  
pp. 188-192 ◽  
Author(s):  
Y. Yamashita ◽  
M. Torashima ◽  
M. Takahashi ◽  
H. Mizutani ◽  
K. Miyazaki ◽  
...  
Keyword(s):  
Mr Imaging ◽  
Gestational Trophoblastic Disease ◽  
Trophoblastic Disease ◽  
Dynamic Mr Imaging ◽  
Contrast Enhanced ◽  
Dynamic Mr

Can preoperative contrast-enhanced dynamic MR imaging for prostate cancer predict microvessel density in prostatectomy specimens?

2004 ◽  
Vol 28 (4) ◽  
pp. 311
Author(s):  
H-P Schlemmer ◽  
J Merkle ◽  
R Grobholz ◽  
T Jaeger ◽  
MS Michel ◽  
...  
Keyword(s):  
Prostate Cancer ◽  
Mr Imaging ◽  
Microvessel Density ◽  
Dynamic Mr Imaging ◽  
Contrast Enhanced ◽  
Dynamic Mr

scholarly journals Hemodynamic characterization of focal hepatic lesions: Role of ferucarbotran-enhanced dynamic MR imaging using T2-weighted multishot spin-echo echo-planar sequence

2006 ◽  
Vol 23 (4) ◽  
pp. 509-519 ◽  
Author(s):  
Masatoshi Hori ◽  
Takamichi Murakami ◽  
Tonsok Kim ◽  
Riccardo Iannaccone ◽  
Hisashi Abe ◽  
...  
Keyword(s):  
Mr Imaging ◽  
Spin Echo ◽  
Dynamic Mr Imaging ◽  
Focal Hepatic Lesions ◽  
Hepatic Lesions ◽  
Echo Planar ◽  
Dynamic Mr

Demonstration of an Anterior Diffusional Pathway for Solutes in the Normal Human Eye with High Spatial Resolution Contrast-Enhanced Dynamic MR Imaging

2006 ◽  
Vol 47 (12) ◽  
pp. 5153 ◽  
Author(s):  
Robert J. Bert ◽  
Shelton D. Caruthers ◽  
Hernan Jara ◽  
Jaroslaw Krejza ◽  
Elias R. Melhem ◽  
...  
Keyword(s):  
Mr Imaging ◽  
Spatial Resolution ◽  
High Spatial Resolution ◽  
Human Eye ◽  
Dynamic Mr Imaging ◽  
Contrast Enhanced ◽  
Normal Human ◽  
Dynamic Mr

scholarly journals Contrast-Enhanced Dynamic MR Imaging of Uterine Fibroids as a Potential Predictor of Patient Eligibility for MR Guided Focused Ultrasound (MRgFUS) Treatment for Symptomatic Uterine Fibroids

2010 ◽  
Vol 2010 ◽  
pp. 1-4 ◽  
Author(s):  
Sang-Wook Yoon ◽  
Chan Lee ◽  
Kyoung Ah Kim ◽  
Sang Heum Kim
Keyword(s):  
Mr Imaging ◽  
Focused Ultrasound ◽  
Uterine Fibroids ◽  
Invasive Treatment ◽  
Dynamic Mr Imaging ◽  
Focused Ultrasound Surgery ◽  
Contrast Enhanced ◽  
High Fluid ◽  
Pre Treatment ◽  
Dynamic Mr

Magnetic resonance-guided focused ultrasound surgery (MRgFUS) is a non-invasive treatment approach for symptomatic uterine fibroids. One imaging characteristic considered in selecting patients who may benefit from MRgFUS of their uterine fibroids is the signal intensity of the fibroid compared with surrounding myometrium on T2-weighted MR images. Previous reports suggest that hyper-intense fibroids are less amenable to MRgFUS compared with iso- or hypo-intense fibroids. In this case study, we utilized contrast-enhanced dynamic MR imaging to further characterize the vascularity of a hyper-intense fibroid. Based on the results of dynamic T1-weighted contrast-enhanced images, we assumed that the hyper-intense appearance resulted from high fluid content rather than high vascularity and predicted that the fibroid would respond to MRgFUS. The patient underwent the MRgFUS without complication and reported significant decrease in fibroid symptoms at 3 and 12 months post-treatment. This case suggests that pre-treatment dynamic contrast-enhanced imaging used in conjunction with T2-weighted imaging may improve the criteria for selecting uterine fibroids amenable to treatment with MRgFUS, potentially leading to improved patient outcomes.

Cirrhosis or Chronic Hepatitis: Evaluation of Small (≤2-cm) Early-Enhancing Hepatic Lesions with Serial Contrast-enhanced Dynamic MR Imaging

Radiology ◽  
2003 ◽  
Vol 226 (2) ◽  
pp. 550-555 ◽  
Author(s):  
Ayame Shimizu ◽  
Katsuyoshi Ito ◽  
Shinji Koike ◽  
Takeshi Fujita ◽  
Kensaku Shimizu ◽  
...  
Keyword(s):  
Chronic Hepatitis ◽  
Mr Imaging ◽  
Dynamic Mr Imaging ◽  
Contrast Enhanced ◽  
Hepatic Lesions ◽  
Dynamic Mr
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