In vitro and clinical studies of image acquisition in breath-hold MR cholangiopancreatography: single-shot projection technique versus multislice technique.

In vitro and clinical studies of image acquisition in breath-hold MR cholangiopancreatography: single-shot projection technique versus multislice technique. Research Abstract Details 

Research Abstract Table of Contents

Jump to the:

In vitro and clinical studies of image acquisition in breath-hold MR cholangiopancreatography: single-shot projection technique versus multislice technique. Abstract Text:

Y Yamashita,Y Abe,Y Tang,J Urata,S Sumi,M Takahashi,

OBJECTIVE: This study was undertaken to compare the in vitro and clinical value of two-dimensional multislice breath-hold MR cholangiopancreatography (MRCP) with a single-shot projection technique using a half-Fourier acquisition single-shot turbo spin-echo sequence. SUBJECTS AND METHODS: We examined 108 patients with pancreaticobiliary diseases, using breath-hold MRCP and a half-Fourier acquisition single-shot turbo spin-echo sequence on a 1.5-T MR unit with a body phased-array coil. Two data acquisition techniques were employed: multislice acquisition postprocessed by maximum intensity projection (MIP) (multislice technique) and single-shot projection with a thick slice (projection technique). In the multislice technique, nine contiguous slices were obtained with a thickness of 5 mm (acquisition time. 18 sec). In the projection technique, a single slice was obtained with a thickness of 30, 50, or 70 mm (acquisition time. 2 sec). Contrast-to-noise ratio (CNR) between the common bile duct and the liver as well as detectability of normal structures and diseases were compared for these two acquisition techniques. In the multislice technique, source images were also evaluated. ERCP or percutaneous transhepatic cholangiography images were used as the gold standard. RESULTS: Most of the pancreatic duct and common bile duct was revealed on 54% and 100% of the projection images, respectively, and on 35% and 98% of the MIP images, respectively, CNR was significantly higher with the multislice technique than with the projection technique (p < .01). With the projection technique, CNR decreased as slice thickness increased. Dilatation and occlusion of the pancreaticobiliary tree were equally well revealed by the two imaging techniques. However, abnormalities in the periampullary region and anomalies in the pancreaticobiliary tree were more clearly seen on projection images than on MIP images (p < .05). Stones in the common bile duct, gallbladder, or intrahepatic bile duct were best seen on source images acquired by the multislice technique (83% sensitivity). CONCLUSION: Because of the absence of misregistration and the speed of image acquisition, breath-hold single-shot MRCP using the projection technique with a slice thickness of 30 or 50 mm consistently revealed the pancreaticobiliary tree and periampullary region with an acceptable CNR. Stones in the bile duct were best seen on the source images acquired by the MIP technique.

In vitro and clinical studies of image acquisition in breath-hold MR cholangiopancreatography: single-shot projection technique versus multislice technique. Publishing Authors By Initials

Y Yamashita,Y Abe,Y Tang,J Urata,S Sumi,M Takahashi,

For similar investigative techniques: epidemiologic methods: statistics as topic: sensitivity and specificity research abstracts see: investigative techniques: epidemiologic methods: statistics as topic: sensitivity and specificity research

PUBMED ID PMID:

MEDLINE DATE:

In vitro and clinical studies of image acquisition in breath-hold MR cholangiopancreatography: single-shot projection technique versus multislice technique. Journal Published:

PUBLICATION TYPE: Journal Article

Journal: AJR. American journal of roentgenology

VOLUME: 168

Page Numbers: 1449-54

Journal Abbreviation:

ISSN: 0361-803X

DAY: 15

MONTH: Jun

YEAR: 1997

In vitro and clinical studies of image acquisition in breath-hold MR cholangiopancreatography: single-shot projection technique versus multislice technique. Information

Number of References:

LANGUAGE: eng

NlmUniqueID: 7708173

In vitro and clinical studies of image acquisition in breath-hold MR cholangiopancreatography: single-shot projection technique versus multislice technique. Keywords Mesh Terms:

KEYWORDS: Sensitivity and Specificity

MESH TERMS: radiography

Chemical & Substance for Abstract: In vitro and clinical studies of image acquisition in breath-hold MR cholangiopancreatography: single-shot projection technique versus multislice technique. Information

Substance Name:

Registry Number:

Grant and Affiliation Information for In vitro and clinical studies of image acquisition in breath-hold MR cholangiopancreatography: single-shot projection technique versus multislice technique.

AFFILIATION: Department of Radiology, Kumamoto University School of Medicine, Japan.

Country: UNITED STATES

AGENCY:

GRANT:

ACRONYM:

MEDLINETA: AJR Am J Roentgenol

REFSOURCE:

DATABASENAME:

ACCESSION NUMBER:

Number Hits: 0

In vitro and clinical studies of image acquisition in breath-hold MR cholangiopancreatography: single-shot projection technique versus multislice technique Related Publications

• A noncanonical E-box enhancer drives mouse Period2 circadian oscillations in vivo.
• Bone morphogenetic protein 2 stimulates osteoclast differentiation and survival supported by receptor activator of nuclear factor-kappaB ligand.
• Circadian rhythms: the cancer connection.
• Comparison between stabilometry with and without head tilts in a roll plane.
• Effect of Escherichia coli wild type or its derivative with high nitrite reductase activity on in vitro ruminal methanogenesis and nitrate/nitrite reduction.
• Effect of gravity on apical dominance in Pharbitis nil.
• Effect of oral branched chain amino acid-rich nutrient administered during endoscopic injection sclerotherapy of cirrhotic patients.
• Forward genetic screens to identify circadian rhythm mutants in mice.
• Genome-wide epistatic interaction analysis reveals complex genetic determinants of circadian behavior in mice.
• Identification of the cDNA of differentially expressed genes in the transition zone of cucumber seedlings by fluorescent differential display.
• In vivo bone-forming capacity of human bone marrow-derived stromal cells is stimulated by recombinant human bone morphogenetic protein-2.
• Isolation of auxin efflux carrier cDNA from cucumber.
• Methods to record circadian rhythm wheel running activity in mice.
• Mice lacking smooth muscle calponin display increased bone formation that is associated with enhancement of bone morphogenetic protein responses.
• Mouse chimeras and their application to circadian biology.
• Novel hydrotropism mutants of Arabidopsis thaliana and their altered waving response and phototropism.
• Oral myiasis treated with ivermectin: case report.
• Osteoblasts provide a suitable microenvironment for the action of receptor activator of nuclear factor-kappaB ligand.
• Osteoprotegerin regulates bone formation through a coupling mechanism with bone resorption.
• Pax 2 expression in mesodermal segmentation and its relationship with EphA4 and Lunatic-fringe during chicken somitogenesis.
• Physiological and genetic characterization of hydrotropic mutants of Arabidopsis thaliana.
• Real-time luminescence reporting of circadian gene expression in mammals.
• Regulations: what next?
• The effect of light on the gravimorphogenesis of cucumber seedlings.
• The mouse Clock mutation reduces circadian pacemaker amplitude and enhances efficacy of resetting stimuli and phase-response curve amplitude.
• [Bone morphogenetic protein (BMP): from basic studies to clinical approaches]
• [Differential expression of a homing-related molecule repertoire among umbilical cord blood, mobilized peripheral blood and bone marrow-derived hematopoietic stem/progenitor cells.]
• [Gravitaxis of paramecium: testing the hypotheses by free-fall experiments]
• [Sequence variability in Borna disease virus ORF II from human beings]
• [The effects of space environment on differentiation and mutation frequency in Dictyostelium discoideum]