Journal article
Large-vessel distensibility measurement with electrocardiographically gated multidetector CT : Phantom study and initial experience
Radiology, Vol.245(1), pp.258-266
2007
DOI: 10.1148/radiol.2451060530
PMID: 17885194
Abstract
The purpose of this study was to prospectively examine vessel distensibility measurements by using electrocardiographically gated multidetector computed tomography (CT) in a phantom compared with measurements by using a digital camera and to examine feasibility in humans. Large-vessel phantoms were constructed, using a pulsatile flow pump, and absolute diameter and percentage diameter changes during pulsation were measured. After institutional review board approval and patient consent were obtained, the abdominal aorta of four patients was scanned with an electrocardiographically gated CT protocol. The mean difference in percentage diameter change between CT and optical measurements for the phantom ranged from −0.47% to 0.14%. The range of area changes in five locations along the abdominal aorta in four patients was 2.97%–37.16%. Findings of this study indicate that electrocardiographically gated CT angiography data reconstructed across cardiac phases permit measurements of large-vessel distensibility in a phantom model and that vessel distensibility measurement in humans may be possible.
Details
- Title: Subtitle
- Large-vessel distensibility measurement with electrocardiographically gated multidetector CT : Phantom study and initial experience
- Creators
- Jie Zhang - Department of Radiology, Mayo Clinic College of Medicine, 200 First St SW, Rochester, MN 55905, United StatesJoel G FLETCHER - Department of Radiology, Mayo Clinic College of Medicine, 200 First St SW, Rochester, MN 55905, United StatesTerri J VRTISKA - Department of Radiology, Mayo Clinic College of Medicine, 200 First St SW, Rochester, MN 55905, United StatesArmando MANDUCA - Department of Radiology, Mayo Clinic College of Medicine, 200 First St SW, Rochester, MN 55905, United StatesJess L THOMPSON - Department of Radiology, Mayo Clinic College of Medicine, 200 First St SW, Rochester, MN 55905, United StatesMadhavan L Raghavan - Department of Biomedical Engineering, University of Iowa, Iowa City, Iowa, United StatesRobert J WENTZ - Department of Radiology, Mayo Clinic College of Medicine, 200 First St SW, Rochester, MN 55905, United StatesCynthia H MCCOLLOUGH - Department of Radiology, Mayo Clinic College of Medicine, 200 First St SW, Rochester, MN 55905, United States
- Resource Type
- Journal article
- Publication Details
- Radiology, Vol.245(1), pp.258-266
- Publisher
- Radiological Society of North America; Oak Brook, IL
- DOI
- 10.1148/radiol.2451060530
- PMID
- 17885194
- ISSN
- 0033-8419
- eISSN
- 1527-1315
- Language
- English
- Date published
- 2007
- Academic Unit
- Roy J. Carver Department of Biomedical Engineering
- Record Identifier
- 9984064203202771
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