| Title |
Shortened acquisition time or reduced-activity dose for gated myocardial perfusion SPECT with new reconstruction algorithm
|
|---|---|
| Published in |
The International Journal of Cardiovascular Imaging, March 2013
|
| DOI | 10.1007/s10554-013-0205-y |
| Pubmed ID | |
| Authors |
Xiao-Xin Sun, Yue-Qin Tian, Dao-Yu Wang, Zuo-Xiang He |
| Abstract |
To confirm that shortened acquisition time or reduced-activity dose in single-photon emission computed tomography (SPECT) myocardial perfusion imaging reconstructed with Astonish software (AS) does not compromise image quality or diagnostic accuracy. One hundred patients referred for SPECT myocardial perfusion imaging were prospectively studied. The patients were randomly selected to receive the full-dose protocol (group A, n = 54) or the half-dose protocol (group B, n = 46). The patients of group A underwent a 2-day stress/rest protocol. After half-time acquisition, they underwent a full-time acquisition for stress and rest SPECT. Group B underwent a 1-day stress/rest protocol. During peak stress, all patients received an intravenous injection of (99m)Tc-methoxyisobutylisonitrile (MIBI; 5.2 ± 0.6 mCi). After the full-time stress acquisition, the patients underwent a double-time stress acquisition. If the stress image showed a defect, a patient received (99m)Tc-MIBI (19.5 ± 1.7 mCi) at rest on the same day. The rest SPECT acquisition protocol was the same in both groups. The low count (LC) and high count (HC) were acquired for each patient. AS and filtered back projection (FBP) reconstructed each set of raw data. Image quality of perfusion was assessed on a four-point scale. Perfusion parameters and function parameters were calculated by quantitative perfusion SPECT and quantitative gated SPECT. Mean image quality for LC-AS and HC-AS (3.5 ± 0.5 and 3.7 ± 0.5, respectively) was superior to HC-FBP (3.1 ± 0.4) in group A (for all, p < 0.001). LC-AS and HC-AS (3.5 ± 0.5 and 3.6 ± 0.5, respectively) in group B were superior to HC-FBP (3.1 ± 0.3) (for all, p < 0.001). LC-AS, HC-AS and LC-FBP showed high diagnostic concordance with HC-FBP (kappa value was 0.92, 0.92, and 0.94, respectively; all p < 0.001). Cardiac SPECT studies can be acquired with half of the scan time or reduced radioactivity dose and reconstructed by using the AS algorithm without compromising image quality. |
X Demographics
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Geographical breakdown
| Country | Count | As % |
|---|---|---|
| United States | 1 | 100% |
Demographic breakdown
| Type | Count | As % |
|---|---|---|
| Members of the public | 1 | 100% |
Mendeley readers
The data shown below were compiled from readership statistics for 32 Mendeley readers of this research output. Click here to see the associated Mendeley record.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| Unknown | 32 | 100% |
Demographic breakdown
| Readers by professional status | Count | As % |
|---|---|---|
| Student > Master | 5 | 16% |
| Student > Bachelor | 4 | 13% |
| Student > Postgraduate | 4 | 13% |
| Researcher | 4 | 13% |
| Student > Ph. D. Student | 2 | 6% |
| Other | 4 | 13% |
| Unknown | 9 | 28% |
| Readers by discipline | Count | As % |
|---|---|---|
| Medicine and Dentistry | 8 | 25% |
| Psychology | 4 | 13% |
| Nursing and Health Professions | 3 | 9% |
| Biochemistry, Genetics and Molecular Biology | 3 | 9% |
| Agricultural and Biological Sciences | 1 | 3% |
| Other | 3 | 9% |
| Unknown | 10 | 31% |
Attention Score in Context
This research output has an Altmetric Attention Score of 1. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 31 March 2014.
All research outputs
#22,760,732
of 25,374,917 outputs
Outputs from The International Journal of Cardiovascular Imaging
#1,460
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Outputs of similar age
#183,869
of 208,479 outputs
Outputs of similar age from The International Journal of Cardiovascular Imaging
#14
of 31 outputs
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