Document Detail

Easy method of patient positioning for convergent-beam cardiac SPECT.
MedLine Citation:
PMID:  17702905     Owner:  NLM     Status:  MEDLINE    
The use of convergent-beam SPECT can increase detection sensitivity; however, the projection data are likely to be truncated if the patient is not properly positioned. This article describes a patient-positioning method that has been adopted in our hospital for cardiac SPECT scans when convergent-beam collimators are used. METHODS: The system that we use has 3 detector heads and a patient table (i.e., bed) with 3 locking positions: left, center, and right. When convergent-beam collimators are used in a cardiac SPECT scan, the patient table is locked in the left position, and a noncircular contour orbit is set up. RESULTS: We were able to acquire truncation-free cardiac projections for all of our patients. CONCLUSION: Patient positioning in convergent-beam SPECT is important. If the patient is not positioned properly, then the heart may be truncated in some projection views. The use of the left locking position of the patient table positions the heart at the center of rotation, and the heart is not truncated in the projection data.
Gengsheng L Zeng; Paul E Christian
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Publication Detail:
Type:  Journal Article     Date:  2007-08-16
Journal Detail:
Title:  Journal of nuclear medicine technology     Volume:  35     ISSN:  0091-4916     ISO Abbreviation:  J Nucl Med Technol     Publication Date:  2007 Sep 
Date Detail:
Created Date:  2007-09-07     Completed Date:  2007-12-06     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0430303     Medline TA:  J Nucl Med Technol     Country:  United States    
Other Details:
Languages:  eng     Pagination:  131-4     Citation Subset:  IM    
Department of Radiology, Utah Center for Advanced Imaging Research, University of Utah Medical Center, 729 Arapeen Drive, Salt Lake City, UT 84108, USA.
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MeSH Terms
Heart / radionuclide imaging*
Image Enhancement / instrumentation*,  methods*
Tomography, Emission-Computed, Single-Photon / instrumentation*,  methods*

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