Dual-Source Computed Tomographic Temporal Resolution Provides Higher Image Quality Than 64-Detector Temporal Resolution at Low Heart Rates

Philip A Araoz; Jacobo Kirsch; Andrew N Primak; Natalie N Braun; Osama Saba; Eric E Williamson; W. Scott Harmsen; Jayawant N Mandrekar; Cynthia H McCollough

doi:10.1097/RCT.0b013e3181b67163

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Dual-Source Computed Tomographic Temporal Resolution Provides Higher Image Quality Than 64-Detector Temporal Resolution at Low Heart Rates

Journal article

Peer reviewed

Dual-Source Computed Tomographic Temporal Resolution Provides Higher Image Quality Than 64-Detector Temporal Resolution at Low Heart Rates

Philip A Araoz, Jacobo Kirsch, Andrew N Primak, Natalie N Braun, Osama Saba, Eric E Williamson, W. Scott Harmsen, Jayawant N Mandrekar and Cynthia H McCollough

Journal of computer assisted tomography, Vol.34(1), pp.64-69

01/2010

DOI: 10.1097/RCT.0b013e3181b67163

PMCID: PMC2923656

PMID: 20118724

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https://www.ncbi.nlm.nih.gov/pmc/articles/2923656View

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Abstract

Objective: To compare coronary image quality at temporal resolutions associated with dual-source computed tomography (DSCT; 83 milliseconds) and 64-detector row scanning (165 milliseconds). Methods: In 30 patients with a heart rate of less than 70 beats per minute, DSCT coronary angiograms were reconstructed at 83- and 165-millisecond temporal resolutions over different cardiac phases. A blinded observer graded coronary quality. Results: The typical DSCT temporal resolution (83 milliseconds) showed a significantly greater quality at end-systole for all coronary vessels and at end-diastole for the right coronary and left anterior descending coronary arteries. For all vessels, the end-diastole produced the highest quality for both temporal resolutions. Conclusions: Imaging at 83 milliseconds creates superior quality at end-systole for all coronary vessels and at end-diastole for the right coronary and left anterior descending coronary arteries. At low heart rates, end-diastole produces the highest quality at both temporal resolutions.

DSCT

coronary

temporal resolution

quality

Details

Title: Subtitle: Dual-Source Computed Tomographic Temporal Resolution Provides Higher Image Quality Than 64-Detector Temporal Resolution at Low Heart Rates
Creators: Philip A Araoz - Department of Radiology, Mayo Clinic, Rochester, MN
Jacobo Kirsch - Department of Radiology, Mayo Clinic, Rochester, MN
Andrew N Primak - Department of Radiology, Mayo Clinic, Rochester, MN
Natalie N Braun - Department of Radiology, Mayo Clinic, Rochester, MN
Osama Saba - CT Division, Siemens Healthcare, Malvern, PA
Eric E Williamson - Department of Radiology, Mayo Clinic, Rochester, MN
W. Scott Harmsen - Department of General Internal Medicine Research, Division of Biostatistics, Mayo Clinic, Rochester, MN
Jayawant N Mandrekar - Department of General Internal Medicine Research, Division of Biostatistics, Mayo Clinic, Rochester, MN
Cynthia H McCollough - Department of Radiology, Mayo Clinic, Rochester, MN
Resource Type: Journal article
Publication Details: Journal of computer assisted tomography, Vol.34(1), pp.64-69
DOI: 10.1097/RCT.0b013e3181b67163
PMID: 20118724
PMCID: PMC2923656
NLM abbreviation: J Comput Assist Tomogr
ISSN: 0363-8715
eISSN: 1532-3145
Language: English
Date published: 01/2010
Academic Unit: Roy J. Carver Department of Biomedical Engineering; Radiology
Record Identifier: 9984064576902771

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