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Titolo:
Diffusion-weighted MR imaging with single-shot echo-planar imaging in the upper abdomen: preliminary clinical experience in 61 patients
Autore:
Ichikawa, T; Haradome, H; Hachiya, J; Nitatori, T; Araki, T;
Indirizzi:
Yamanashi Med Univ, Dept Radiol, 1110 Shimokato, Yamanashi 40938, Japan Yamanashi Med Univ Yamanashi Japan 40938 imokato, Yamanashi 40938, Japan Kyorin Univ, Sch Med, Dept Radiol, Tokyo 181, Japan Kyorin Univ Tokyo Japan 181 Univ, Sch Med, Dept Radiol, Tokyo 181, Japan
Titolo Testata:
ABDOMINAL IMAGING
fascicolo: 5, volume: 24, anno: 1999,
pagine: 456 - 461
SICI:
0942-8925(199909/10)24:5<456:DMIWSE>2.0.ZU;2-2
Fonte:
ISI
Lingua:
ENG
Soggetto:
WATER DIFFUSION; SYSTEM; STROKE; LIVER;
Keywords:
abdomen, magnetic resonance; liver, magnetic resonance; magnetic resonance, rapid imaging; magnetic resonance, diffusion study; magnetic resonance, echo planar;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Clinical Medicine
Citazioni:
18
Recensione:
Indirizzi per estratti:
Indirizzo: Ichikawa, T Univ Pittsburgh, Med Ctr, Dept Radiol, 200 Lothrop St, Pittsburgh, PA 15213 USA Univ Pittsburgh 200 Lothrop St Pittsburgh PA USA 15213 213 USA
Citazione:
T. Ichikawa et al., "Diffusion-weighted MR imaging with single-shot echo-planar imaging in the upper abdomen: preliminary clinical experience in 61 patients", ABDOM IMAG, 24(5), 1999, pp. 456-461

Abstract

Background: To determine the potential ability of diffusion-weighted magnetic resonance (MR) imaging with single-shot echo-planar imaging (DW imaging) in the upper abdomen by apparent diffusion coefficient (ADC) and signal:intensity ratio (SIR) measurements. Methods: DW imaging was performed in 61 clinical patients. ADCs in the liver, pancreas, spleen, kidney, and different pathological conditions were calculated. Spleen-to-liver SIR and segmental intensity difference of the liver (SID) were also calculated. Results: The mean ADCs (mm(2)/s) were 2.28 x 10(-3) +/- 0.07 in the liver,1.44 x 10(-3) +/- 0.05 in the spleen, 1.94 x 10(-3) +/- 0.19 in the pancreas, and 5.76 x 10(-3) +/- 0.06 in the kidney. The mean ADC of cirrhotic liver was 1.96 x 10(-3) +/- 0.62, which was lower than that of normal liver. Other pathologic conditions also showed ADCs different from those of normal tissues. All DW images showed significantly higher spleen-to-liver SIRs andSIDs than did T2-weighted images (p < 0.05). Conclusion: The mean ADCs obtained with DW imaging were different in each upper abdominal organ and with each pathologic condition. DW images showed:better soft tissue contrast than did T2-weighted images with regard to SIRand CNR in depicting and characterizing upper abdominal disorders.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 04/04/20 alle ore 12:22:06