Journal article
Frequency of false-positive septal defects on adenosine/201Tl images in patients with left bundle branch block
Nuclear medicine communications, Vol.16(3), pp.137-139
1995
DOI: 10.1097/00006231-199516030-00004
Abstract
The exercise201T1 imaging procedure in patients with left bundle branch block (LBBB) is associated with a relatively high frequency of false-positive septal perfusion defects. We therefore initiated a study designed to determine the frequency of false-positive septal defects seen with adenosine/thallium imaging. In total, 900 adenosine/thallium cases performed at our institution for assessment of coronary artery disease were reviewed. Sixty-eight patients had LBBB on resting electrocardiogram (ECG) and successfully completed the imaging procedure, of whom 25 had coronary angiography. Only 6 of the 68 patients demonstrated reversible septal defects on thallium imaging. Of these 6 patients, 3 underwent coronary angiography and all of them had significant (>70%) LAD stenosis. Therefore, at most only 4% of the patients with LBBB had a false-positive reversible septal defect. Three additional patients had fixed septal defects. Of these three patients, one underwent cardiac catheterization and was found not to have significant LAD stenosis. The results from this study suggest that adenosine/thallium imaging is associated with an acceptably low frequency of false-positive septal defects and should be used as an alternative to exercise/thallium in patients with LBBB. © 1995 Chapman and Hall Ltd.
Details
- Title: Subtitle
- Frequency of false-positive septal defects on adenosine/201Tl images in patients with left bundle branch block
- Creators
- R Patel - PhoenixD. L Bushnell - PhoenixR Wagner - PhoenixR Stumbris - Maricopa medical cent., dep. cardiology, Phoenix AZ 85008, United States
- Resource Type
- Journal article
- Publication Details
- Nuclear medicine communications, Vol.16(3), pp.137-139
- Publisher
- Lippincott Williams & Wilkins
- DOI
- 10.1097/00006231-199516030-00004
- ISSN
- 0143-3636
- eISSN
- 1473-5628
- Language
- English
- Date published
- 1995
- Academic Unit
- Radiology
- Record Identifier
- 9984318723702771
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