| Influence of CT-based attenuation correction in assessment of left and right ventricular functions with count-based gated blood-pool SPECT. | |
| | |
MedLine Citation:
|
PMID: 21647809 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
|
OBJECTIVE: Influence of CT-based attenuation correction (CT-AC) in assessment of left and right ventricular functions with count-based gated blood-pool SPECT (GBPS) was evaluated in a mixed population. METHODS: Thirty-two patients (81% male; mean age 56 ± 12) referred for various symptoms or heart diseases were prospectively included. Data from 32 GBPS acquisitions were reconstructed using an iterative algorithm with (IRAC) and without (IRNC) CT-AC and analyzed using previously described segmentation software based on the watershed algorithm. LV and RV EF and volumes were assessed with and without CT-AC and compared. RESULTS: EF and volumes were correlated (P < .001 for all parameters with r = 0.97 for LV and RV EF; r = 0.96 for LV EDV; r = 0.98 for LV ESV; r = 0.96 for RV EDV and ESV). The mean values using IRAC and IRNC were different for all parameters with lower EF (respectively, 49% ± 19% vs 51 %± 18%; P = .002 for LV EF and 50% ± 14% vs 54%±15%; P < .001 for RV EF) and higher volumes (respectively, 142 ± 41 mL vs 133 ± 40 mL; P < .001 and 79 ± 45 mL vs 71 ± 42 mL; P < .001 for LV EDV and ESV; 91 ± 32 mL vs 86 ± 31 mL; P = .003 and 48 ± 28 mL vs 43 ± 26 mL; P < .001 for RV EDV and ESV). Limits of agreement were -11% to 6% and -11% to 4% for LV and RV EF. We found wider limits of agreement for LV volumes (-13 to 32 mL for EDV and -10 to 27 mL for ESV) than for RV volumes (-13 to 23 mL for EDV and -9 to 20 mL for ESV). Taking into account all volumes, we found a trend with a significant positive correlation between means and differences in volumes assessed with and without CT-AC. CONCLUSION: Assessment of both left and right ventricular functions by count-based GBPS with CT-AC showed higher volumes and lower EF. Differences were slight, especially for the range of normal to subnormal ventricular volumes. |
| | |
Authors:
|
Louis Sibille; Fayçal Ben Bouallegue; Aurélie Bourdon; Denis Mariano-Goulart |
Related Documents
:
|
10915669 - Sensitivity of ct scout radiography and abdominal radiography for revealing ureteral ca... 17601499 - Acute flank pain secondary to urolithiasis: radiologic evaluation and alternate diagnoses. 10227489 - Helical ct of the urinary tract. 10227499 - Foci of eosinophil-related necrosis in the liver: imaging findings and correlation with... 9089589 - Low-contrast resolution in volumetric x-ray ct--analytical comparison between conventio... 10415249 - Intrahepatic arterioportal shunt: helical ct findings. 16129229 - A comparison of two laser-based methods for determination of burn scar perfusion: laser... 17625939 - Proton mrs of a child with sandhoff disease reveals elevated brain hexosamine. 10581589 - Quality assurance in myocardial perfusion tomography: a collaborative bncs/bnms audit p... |
Publication Detail:
|
Type: JOURNAL ARTICLE Date: 2011-6-7 |
Journal Detail:
|
Title: Journal of nuclear cardiology : official publication of the American Society of Nuclear Cardiology Volume: - ISSN: 1532-6551 ISO Abbreviation: - Publication Date: 2011 Jun |
Date Detail:
|
Created Date: 2011-6-7 Completed Date: - Revised Date: - |
Medline Journal Info:
|
Nlm Unique ID: 9423534 Medline TA: J Nucl Cardiol Country: - |
Other Details:
|
Languages: ENG Pagination: - Citation Subset: - |
Affiliation:
|
Department of Nuclear Medicine, CHRU Lapeyronie, 371 Av. du Doyen Gaston Giraud, 34295, Montpellier, France, louis.sibille@gmail.com. |
Export Citation:
|
APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
|
|
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
Previous Document: Percutaneous Transhepatic Removal of Bile Duct Stones: Results of 261 Patients.
Next Document: Source-constrained retrieval influences the encoding of new information.