Fast breath-hold T2-weighted MRI of the kidney by means of half-Fourier single-shot turbo spin echo: Comparison with high resolution turbo spin echo sequence

Citation
Y. Nakayama et al., Fast breath-hold T2-weighted MRI of the kidney by means of half-Fourier single-shot turbo spin echo: Comparison with high resolution turbo spin echo sequence, J COMPUT AS, 25(1), 2001, pp. 55-60
Citations number
15
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Radiology ,Nuclear Medicine & Imaging","Medical Research Diagnosis & Treatment
Journal title
JOURNAL OF COMPUTER ASSISTED TOMOGRAPHY
ISSN journal
0363-8715 → ACNP
Volume
25
Issue
1
Year of publication
2001
Pages
55 - 60
Database
ISI
SICI code
0363-8715(200101/02)25:1<55:FBTMOT>2.0.ZU;2-U
Abstract
Purpose: The value of the fast half-Fourier single-shot turbo spin echo (HA STE) sequence in T2-weighted MRI of the kidney was evaluated as a substitut e for the conventional turbo spin echo (TSE) sequence. Method: Forty-five patients with suspected abnormalities of the kidney unde rwent MRI with a 1.5 T system. Breath-hold HASTE and respiratory-triggered TSE sequences were performed. Qualitative and quantitative analyses were pe rformed for comparison of these sequences. Results: The signal-to-noise ratio (SNR) with HASTE was higher than that wi th TSE. The lesion-to-kidney contrast-to-noise ratio for solid masses with HASTE was almost equal to that with TSE. For cystic masses, the CNR with HA STE was significantly higher than that with TSE (p < 0.05). Respiratory and chemical shift artifacts were significantly smaller on HASTE than on TSE ( p < 0.01). However. the blurring artifact was higher on HASTE than on TSE ( p = 0.01). Conclusion: The HASTE sequence generates high contrast images and is free o f motion and chemical shift artifacts, with much better time efficacy. The sequence provides comparable diagnostic information to TSE sequences.