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Titolo:
LIVER T2-WEIGHTED MR-IMAGING - COMPARISON OF FAST AND CONVENTIONAL HALF-FOURIER SINGLE-SHOT TURBO SPIN-ECHO, BREATH-HOLD TURBO SPIN-ECHO, AND RESPIRATORY-TRIGGERED TURBO SPIN-ECHO SEQUENCES
Autore:
TANG Y; YAMASHITA Y; NAMIMOTO T; ABE Y; TAKAHASHI M;
Indirizzi:
KUMAMOTO UNIV,SCH MED,DEPT RADIOL,1-1-1 HONJO KUMAMOTO 860 JAPAN KUMAMOTO UNIV,SCH MED,DEPT RADIOL KUMAMOTO 860 JAPAN
Titolo Testata:
Radiology
fascicolo: 3, volume: 203, anno: 1997,
pagine: 766 - 772
SICI:
0033-8419(1997)203:3<766:LTM-CO>2.0.ZU;2-7
Fonte:
ISI
Lingua:
ENG
Soggetto:
METASTASES;
Keywords:
LIVER NEOPLASMS; LIVER NEOPLASMS, MR; MAGNETIC RESONANCE (MR), PULSE SEQUENCES; MAGNETIC RESONANCE (MR), RAPID IMAGING;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
17
Recensione:
Indirizzi per estratti:
Citazione:
Y. Tang et al., "LIVER T2-WEIGHTED MR-IMAGING - COMPARISON OF FAST AND CONVENTIONAL HALF-FOURIER SINGLE-SHOT TURBO SPIN-ECHO, BREATH-HOLD TURBO SPIN-ECHO, AND RESPIRATORY-TRIGGERED TURBO SPIN-ECHO SEQUENCES", Radiology, 203(3), 1997, pp. 766-772

Abstract

PURPOSE: T2-weighted spin-echo (SE) magnetic resonance imaging in theliver was compared with four sequences: fast and conventional half-Fourier single-shot turbo SE (HASTE) and breath-hold and respiratory-triggered turbo SE. MATERIALS AND METHODS: In 58 patients with focal liver lesions, imaging was performed with a 1.5-T magnet and a phased-array coil. Images obtained with fast HASTE conventional HASTE, breath-hold turbo SE, and respiratory-triggered turbo SE were compared. Results of quantitative, qualitative, and receiver operating characteristic analyses were compared. RESULTS: Lesion-to-liver contrast for solid tumors was significantly higher with the fast HASTE and respiratory-triggered turbo SE sequences than with the conventional HASTE and breath-hold turbo SE sequences (P < .01) and for cystic lesions was significantly higher with the conventional and fast HASTE sequences than with the breath-hold or respiratory-triggered turbo SE sequences (P < .01). Artifacts were negligible on all fast and conventional HASTE images. In receiver operating characteristic analyses, diagnostic performance was significantly higher with the fast HASTE and respiratory-triggered turbo SE sequences than with the conventional HASTE and breath-hold turboSE sequences (P < .01).CONCLUSION: Images obtained with the fast HASTE sequence were free from motion artifacts, and observer diagnostic performance was similar to that with the respiratory-triggered turbo SE sequence.

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Documento generato il 24/09/20 alle ore 11:26:19