Document Detail

Is 'diaphragmatic' attenuation a misnomer?. Evaluation of the anatomic cause of 'diaphragmatic' attenuation in SPECT thallium scanning.
MedLine Citation:
PMID:  9110195     Owner:  NLM     Status:  MEDLINE    
The most common artifact on thallium scans in our laboratory has been posterior myocardial attenuation, mostly in males. In the past this has been thought due to the position of the diaphragm. METHODS: To evaluate this concept, matching chest x-rays were examined and measured. Eleven examples of posterior myocardial attenuation were consecutively pulled from our files and compared to eleven consecutive controls. RESULTS: It was found that the diaphragm did not differ significantly. The ratio of the PA diameter of the chest to chest width was significantly (p < 0.03) less than controls. CONCLUSIONS: It is suggested that a male with a flat, wide chest is more prone to posterior myocardial attenuation. If a posterior defect is present in this type of patient it is suggested he be further evaluated to rule out artifact.
S H Elson; W S Clark; B R Williams
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  International journal of cardiac imaging     Volume:  13     ISSN:  0167-9899     ISO Abbreviation:  Int J Card Imaging     Publication Date:  1997 Apr 
Date Detail:
Created Date:  1997-06-27     Completed Date:  1997-06-27     Revised Date:  2004-11-17    
Medline Journal Info:
Nlm Unique ID:  8600426     Medline TA:  Int J Card Imaging     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  161-4     Citation Subset:  IM    
Emory University School of Medicine, Atlanta, GA 30303, USA.
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MeSH Terms
Diaphragm / radionuclide imaging*
Heart / radionuclide imaging*
Thallium Radioisotopes / diagnostic use*
Thorax / anatomy & histology
Tomography, Emission-Computed, Single-Photon*
Reg. No./Substance:
0/Thallium Radioisotopes

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