High-resolution myocardial perfusion imaging at 3 T: comparison to 1.5 T in healthy volunteers.

High-resolution myocardial perfusion imaging at 3 T: comparison to 1.5 T in healthy volunteers. Research Abstract Details 

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High-resolution myocardial perfusion imaging at 3 T: comparison to 1.5 T in healthy volunteers. Abstract Text:

K Strach,C Meyer,D Thomas,C P Naehle,C Schmitz,H Litt,A Bernstein,B Cheng,H Schild,T Sommer,

The purpose of this study was to evaluate high-resolution (HR) myocardial first-pass perfusion in healthy volunteers at 3 T compared to a typical clinical imaging protocol at 1.5 T, with respect to overall image quality and the presence of subendocardial dark rim artifacts. Myocardial first-pass rest perfusion studies were performed at both field strengths using a T1-weighted saturation-recovery segmented k-space gradient-echo sequence combined with parallel imaging (Gd-DTPA 0.05 mmol/kg). Twenty-six healthy volunteers underwent (1) a HR perfusion scan at 3 T(pixel size 3.78 mm(2)) and (2) a standard perfusion approach at 1.5 T(pixel size 9.86 mm(2)). The contrast enhancement ratio (CER) and overall image quality (4-point grading scale: 4: excellent; 1: non-diagnostic) were assessed, and a semiquantitative analysis of dark rim artifacts was performed for all studies. CER was slightly higher (1.31 +/- 0.32 vs. 1.14 +/- 0.34; p<0.01), overall image quality was significantly improved (3.03 +/- 0.43 vs. 2.37 +/- 0.39; p<0.01), and the number of dark rim artifacts (139 +/- 2.09 vs. 243 +/- 2.33; p<0.01) was significantly reduced for HR perfusion imaging at 3 T compared to the standard approach at 1.5 T. HR myocardial rest perfusion at 3 T is superior to the typical clinical perfusion protocol performed at 1.5 T with respect to the overall image quality and presence of subendocardial dark rim artifacts.

High-resolution myocardial perfusion imaging at 3 T: comparison to 1.5 T in healthy volunteers. Publishing Authors By Initials

K Strach,C Meyer,D Thomas,CP Naehle,C Schmitz,H Litt,A Bernstein,B Cheng,H Schild,T Sommer,

For similar diagnosis: diagnostic techniques and procedures: diagnostic imaging: radionuclide imaging: radionuclide angiography: radionuclide ventriculography: ventriculography, first-pass research abstracts see: diagnosis: diagnostic techniques and procedures: diagnostic imaging: radionuclide imaging: radionuclide angiography: radionuclide ventriculography: ventriculography, first-pass research

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High-resolution myocardial perfusion imaging at 3 T: comparison to 1.5 T in healthy volunteers. Journal Published:

PUBLICATION TYPE: Journal Article

Journal: European radiology

VOLUME: 17

Page Numbers: 1829-35

Journal Abbreviation:

ISSN: 0938-7994

DAY: 16

MONTH: 02

YEAR: 2007

High-resolution myocardial perfusion imaging at 3 T: comparison to 1.5 T in healthy volunteers. Information

Number of References:

LANGUAGE: eng

NlmUniqueID: 9114774

High-resolution myocardial perfusion imaging at 3 T: comparison to 1.5 T in healthy volunteers. Keywords Mesh Terms:

KEYWORDS: Ventriculography, First-Pass

MESH TERMS: methods

Chemical & Substance for Abstract: High-resolution myocardial perfusion imaging at 3 T: comparison to 1.5 T in healthy volunteers. Information

Substance Name: Gadolinium DTPA

Registry Number: 80529-93-7

Grant and Affiliation Information for High-resolution myocardial perfusion imaging at 3 T: comparison to 1.5 T in healthy volunteers.

AFFILIATION: Department of Radiology, University of Bonn, Bonn, Germany.

Country: Germany

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MEDLINETA: Eur Radiol

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