Abstract：
:New software methods that incorporate iterative reconstruction, resolution recovery, and noise compensation now provide the ability to maintain or improve myocardial perfusion SPECT image quality with conventional sodium iodide cameras. Despite lower image counting statistics associated with significantly decreased injected radiopharmaceutical doses or shortened acquisition times or both, image quality is preserved or even improved compared with conventional processing methods. The ability to prescribe a desired myocardial count density by preselecting a SPECT acquisition time now avoids additional patient radiation exposure associated with "weight-based" dosing. More recent advancements, including temporal correlation among the gated perfusion frames and higher resolution SPECT acquisitions, hold promise to further improve image quality and diagnostic accuracy. Phase analysis of gated perfusion SPECT provides the ability to assess cardiac dyssynchrony and to select those patients who will most benefit from resynchronization therapy. In combination with the higher counting statistics afforded by the new solid-state dedicated cardiac cameras, these software advancements allow for even further decreased patient radiation doses or acquisition times or both. List-mode software allows for refinement of myocardial perfusion SPECT by interrogating particular data from selected cardiac cycles. Rejection of frames degraded by arrhythmic cardiac cycles or excessive extracardiac uptake can be excluded for reconstruction. Respiratory gating, which diminishes cardiac motion and potentially decreases diaphragmatic attenuation, has been demonstrated to improve diagnostic specificity. With high-count first-pass list-mode acquisitions at rest and during pharmacologic vasodilatation, it may be possible to measure global and regional myocardial perfusion reserve to more accurately diagnose coronary artery disease and avoid false-negative studies owing to balanced ischemia.
journal_name
Semin Nucl Medjournal_title
Seminars in nuclear medicineauthors
Gordon DePuey E 3rddoi
10.1053/j.semnuclmed.2014.04.001subject
Has Abstractpub_date
2014-07-01 00:00:00pages
252-73issue
4eissn
0001-2998issn
1558-4623pii
S0001-2998(14)00021-Xjournal_volume
44pub_type
杂志文章,评审abstract：:In order to assess the role of 99mTc-iminodiacetic acid (IDA) cholescintigraphy in evaluating postoperative patients, a total of 213 studies were performed in 189 patients over a 3-year time period. Of these, 130 studies were obtained in 125 cases with signs and/or symptoms suggesting postcholecystectomy syndrome. A n...
journal_title：Seminars in nuclear medicine
pub_type： 杂志文章,评审
doi：10.1016/s0001-2998(82)80027-5
更新日期：1982-01-01 00:00:00
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journal_title：Seminars in nuclear medicine
pub_type： 杂志文章,评审
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更新日期：2020-05-01 00:00:00
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journal_title：Seminars in nuclear medicine
pub_type： 杂志文章,评审
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更新日期：2010-01-01 00:00:00
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journal_title：Seminars in nuclear medicine
pub_type： 杂志文章
doi：10.1016/s0001-2998(96)80012-2
更新日期：1996-01-01 00:00:00
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journal_title：Seminars in nuclear medicine
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journal_title：Seminars in nuclear medicine
pub_type： 杂志文章,评审
doi：10.1016/s0001-2998(05)80048-0
更新日期：1991-04-01 00:00:00
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journal_title：Seminars in nuclear medicine
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journal_title：Seminars in nuclear medicine
pub_type： 杂志文章,评审
doi：10.1053/snuc.2002.126059
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journal_title：Seminars in nuclear medicine
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更新日期：2015-07-01 00:00:00
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journal_title：Seminars in nuclear medicine
pub_type： 杂志文章,评审
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更新日期：2008-03-01 00:00:00
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journal_title：Seminars in nuclear medicine
pub_type： 杂志文章,评审
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journal_title：Seminars in nuclear medicine
pub_type： 杂志文章,评审
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journal_title：Seminars in nuclear medicine
pub_type： 杂志文章,评审
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更新日期：2018-01-01 00:00:00
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journal_title：Seminars in nuclear medicine
pub_type： 杂志文章,评审
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journal_title：Seminars in nuclear medicine
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更新日期：2021-01-19 00:00:00
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journal_title：Seminars in nuclear medicine
pub_type： 杂志文章,评审
doi：10.1016/s0001-2998(84)80022-7
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journal_title：Seminars in nuclear medicine
pub_type： 杂志文章,评审
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journal_title：Seminars in nuclear medicine
pub_type： 杂志文章,评审
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journal_title：Seminars in nuclear medicine
pub_type： 杂志文章,评审
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journal_title：Seminars in nuclear medicine
pub_type： 杂志文章,评审
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journal_title：Seminars in nuclear medicine
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journal_title：Seminars in nuclear medicine
pub_type： 杂志文章,评审
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journal_title：Seminars in nuclear medicine
pub_type： 杂志文章,评审
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journal_title：Seminars in nuclear medicine
pub_type： 杂志文章,评审
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journal_title：Seminars in nuclear medicine
pub_type： 杂志文章,评审
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更新日期：2010-03-01 00:00:00
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journal_title：Seminars in nuclear medicine
pub_type： 杂志文章,评审
doi：10.1053/j.semnuclmed.2014.07.003
更新日期：2014-09-01 00:00:00
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journal_title：Seminars in nuclear medicine
pub_type： 杂志文章,评审
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journal_title：Seminars in nuclear medicine
pub_type： 杂志文章,评审
doi：10.1016/s0001-2998(05)80094-7
更新日期：1993-04-01 00:00:00
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journal_title：Seminars in nuclear medicine
pub_type： 临床试验,杂志文章,多中心研究
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abstract：:Nuclear imaging in the definition of the components of the congenitally enlarged extremity is important in the design of a successful therapeutic regimen. In our series of 32 patients evaluated for primary lymphedema, 85% were determined to have abnormalities that were not purely lymphatic in origin. The multiscintigr...
journal_title：Seminars in nuclear medicine
pub_type： 杂志文章,评审
doi：10.1016/s0001-2998(05)80112-6
更新日期：1993-10-01 00:00:00
