Comparison of Non-Breath-Hold T2-weighted Turbo Spin-Echo and Three Breath-Hold T2-weighted MR Images for Detection of Focal Hepatic Lesion
Journal of the Korean Radiological Society
;
: 731-738, 1999.
Article
in Korean
| WPRIM
| ID: wpr-140297
ABSTRACT
PURPOSE:
The purpose of this study was to compare non-breath-hold T2-weighted turbo spin-echo (TSE) MR imaging with three types of breath-hold T2-weighted MR imaging (breath-hold TSE [BHTSE], half-Fourier single- shot TSE [HASTE], and true-fast imaging with steady-state precession [FISP]) for hepatic lesion detection. MATERIALS ANDMETHODS:
T2-weighted MR images obtained using the above with the four sequences in 38 patients with 53 solid malignant and 90 non-solid benign hepatic lesions were retrospectively analyzed. Images were compared quantitatively (lesion-to-liver contrast-to-noise ratio and lesion detectability) and qualitatively (conspicuity of lesion and artifact). Statistical analysis involved the paired t-test for quantitative evaluation and Wilcoxon's signed rank test for qualitative evaluation.RESULTS:
The values of lesion-to-liver contrast-to-noise ratios and lesion conspicuity for solid malignant hepatic lesions were better with non-breath-hold TSE imaging than with the three breath-hold T2-weighted sequences (p .05), and lesion detectability for non-solid benign lesions was similar (94% and 98%, compared with 91% and 96 %).CONCLUSION:
In the cases of solid malignant hepatic lesions, the three breath-hold T2-weighted sequences were inferior to non-breath-hold TSE with regard to lesion-to-liver contrast-to-noise ratio and lesion detectability. Non-breath-hold TSE imaging should thus not be replaced by breath-hold T2-weighted imaging.
Full text:
Available
Index:
WPRIM (Western Pacific)
Main subject:
Magnetic Resonance Imaging
/
Retrospective Studies
/
Evaluation Studies as Topic
Type of study:
Diagnostic study
/
Evaluation studies
/
Observational study
/
Qualitative research
Limits:
Humans
Language:
Korean
Journal:
Journal of the Korean Radiological Society
Year:
1999
Type:
Article
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