Comparison of positional artifacts in myocardial perfusion imaging in supine and semi-reclining position using dedicated D-SPECT cardiac camera: validation using CT based attenuation correction
Soft-tissue attenuation remains a major limitation of SPECT-MPI which interferes with the diagnosis of CAD. The current study aims to evaluate the pattern of attenuation artifacts in supine and semi-reclining positions on CZT cardiac camera and their interaction with gender, BMI and stress protocols...
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| Veröffentlicht in: | Journal of nuclear cardiology 2023-10, Vol.30 (5), p.1782-1793 |
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| container_title | Journal of nuclear cardiology |
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| creator | Chopra, Sejal Singh, Shashank Shekhar Sood, Ashwani Parmar, Madan Parihar, Ashwin Singh Vadi, Shelvin Kumar Mittal, Bhagwant Rai |
| description | Soft-tissue attenuation remains a major limitation of SPECT-MPI which interferes with the diagnosis of CAD. The current study aims to evaluate the pattern of attenuation artifacts in supine and semi-reclining positions on CZT cardiac camera and their interaction with gender, BMI and stress protocols.
We prospectively analysed 150 patients acquired in supine and semi-reclining positions on CZT camera. The images were evaluated for severity and extent of defect using 17-segment model. An additional CT scan was acquired to generate AC image in the first 50 patients studied to assist investigator learning for comparison of artifact vs true defects in the two SPECT systems. The defects present in one position or showing change in severity within two positions were considered as positional artifacts and further validated using CTAC supine image.
In overall analysis, higher extent and severity of positional artifacts were observed more in semi-reclining position affecting the apex, apico-inferior, inferolateral and inferoseptal segments. Females showed more positional artifacts than males with inferior wall attenuation in the semireclining position and anterior wall attenuation in the supine position. A positive correlation of the extent and severity of positional artifacts was noted with an increasing BMI. In patients with BMI > 30, mid inferior and inferolateral segments were most affected followed by anterior wall segments. Highest correction of artifactual perfusion defects by CTAC was noted in inferior wall followed by inferolateral segments.
The incidence of positional artifacts was greater in semi-reclining position in females, higher BMI groups and adenosine stress subsets. Knowledge of the pattern of positional artifacts appears to be a reliable alternative of CTAC for correct interpretation of myocardial perfusion images. |
| doi_str_mv | 10.1007/s12350-023-03210-w |
| format | Article |
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We prospectively analysed 150 patients acquired in supine and semi-reclining positions on CZT camera. The images were evaluated for severity and extent of defect using 17-segment model. An additional CT scan was acquired to generate AC image in the first 50 patients studied to assist investigator learning for comparison of artifact vs true defects in the two SPECT systems. The defects present in one position or showing change in severity within two positions were considered as positional artifacts and further validated using CTAC supine image.
In overall analysis, higher extent and severity of positional artifacts were observed more in semi-reclining position affecting the apex, apico-inferior, inferolateral and inferoseptal segments. Females showed more positional artifacts than males with inferior wall attenuation in the semireclining position and anterior wall attenuation in the supine position. A positive correlation of the extent and severity of positional artifacts was noted with an increasing BMI. In patients with BMI > 30, mid inferior and inferolateral segments were most affected followed by anterior wall segments. Highest correction of artifactual perfusion defects by CTAC was noted in inferior wall followed by inferolateral segments.
The incidence of positional artifacts was greater in semi-reclining position in females, higher BMI groups and adenosine stress subsets. Knowledge of the pattern of positional artifacts appears to be a reliable alternative of CTAC for correct interpretation of myocardial perfusion images.</description><identifier>ISSN: 1071-3581</identifier><identifier>EISSN: 1532-6551</identifier><identifier>DOI: 10.1007/s12350-023-03210-w</identifier><identifier>PMID: 36849635</identifier><language>eng</language><publisher>Cham: Elsevier Inc</publisher><subject>CAD ; Cameras ; Cardiology ; Female ; Humans ; image analysis ; Image Processing, Computer-Assisted ; Imaging ; infarction ; Male ; Medicine ; Medicine & Public Health ; MPI ; myocardial ischemia ; Myocardial Perfusion Imaging - methods ; Nuclear Medicine ; Original Article ; Radiology ; SPECT ; Supine Position ; Tomography, Emission-Computed, Single-Photon - methods ; Tomography, X-Ray Computed - methods</subject><ispartof>Journal of nuclear cardiology, 2023-10, Vol.30 (5), p.1782-1793</ispartof><rights>2023 American Society of Nuclear Cardiology. Published by ELSEVIER INC. All rights reserved.</rights><rights>The Author(s) under exclusive licence to American Society of Nuclear Cardiology 2023. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.</rights><rights>2023. The Author(s) under exclusive licence to American Society of Nuclear Cardiology.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c428t-fa37571ef76c9aa211ec0fc92e4fe06591092eab660221db50cceb4c8fc67a233</citedby><cites>FETCH-LOGICAL-c428t-fa37571ef76c9aa211ec0fc92e4fe06591092eab660221db50cceb4c8fc67a233</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://link.springer.com/content/pdf/10.1007/s12350-023-03210-w$$EPDF$$P50$$Gspringer$$H</linktopdf><linktohtml>$$Uhttps://link.springer.com/10.1007/s12350-023-03210-w$$EHTML$$P50$$Gspringer$$H</linktohtml><link.rule.ids>314,780,784,27924,27925,41488,42557,51319</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/36849635$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Chopra, Sejal</creatorcontrib><creatorcontrib>Singh, Shashank Shekhar</creatorcontrib><creatorcontrib>Sood, Ashwani</creatorcontrib><creatorcontrib>Parmar, Madan</creatorcontrib><creatorcontrib>Parihar, Ashwin Singh</creatorcontrib><creatorcontrib>Vadi, Shelvin Kumar</creatorcontrib><creatorcontrib>Mittal, Bhagwant Rai</creatorcontrib><title>Comparison of positional artifacts in myocardial perfusion imaging in supine and semi-reclining position using dedicated D-SPECT cardiac camera: validation using CT based attenuation correction</title><title>Journal of nuclear cardiology</title><addtitle>J. Nucl. Cardiol</addtitle><addtitle>J Nucl Cardiol</addtitle><description>Soft-tissue attenuation remains a major limitation of SPECT-MPI which interferes with the diagnosis of CAD. The current study aims to evaluate the pattern of attenuation artifacts in supine and semi-reclining positions on CZT cardiac camera and their interaction with gender, BMI and stress protocols.
We prospectively analysed 150 patients acquired in supine and semi-reclining positions on CZT camera. The images were evaluated for severity and extent of defect using 17-segment model. An additional CT scan was acquired to generate AC image in the first 50 patients studied to assist investigator learning for comparison of artifact vs true defects in the two SPECT systems. The defects present in one position or showing change in severity within two positions were considered as positional artifacts and further validated using CTAC supine image.
In overall analysis, higher extent and severity of positional artifacts were observed more in semi-reclining position affecting the apex, apico-inferior, inferolateral and inferoseptal segments. Females showed more positional artifacts than males with inferior wall attenuation in the semireclining position and anterior wall attenuation in the supine position. A positive correlation of the extent and severity of positional artifacts was noted with an increasing BMI. In patients with BMI > 30, mid inferior and inferolateral segments were most affected followed by anterior wall segments. Highest correction of artifactual perfusion defects by CTAC was noted in inferior wall followed by inferolateral segments.
The incidence of positional artifacts was greater in semi-reclining position in females, higher BMI groups and adenosine stress subsets. Knowledge of the pattern of positional artifacts appears to be a reliable alternative of CTAC for correct interpretation of myocardial perfusion images.</description><subject>CAD</subject><subject>Cameras</subject><subject>Cardiology</subject><subject>Female</subject><subject>Humans</subject><subject>image analysis</subject><subject>Image Processing, Computer-Assisted</subject><subject>Imaging</subject><subject>infarction</subject><subject>Male</subject><subject>Medicine</subject><subject>Medicine & Public Health</subject><subject>MPI</subject><subject>myocardial ischemia</subject><subject>Myocardial Perfusion Imaging - methods</subject><subject>Nuclear Medicine</subject><subject>Original Article</subject><subject>Radiology</subject><subject>SPECT</subject><subject>Supine Position</subject><subject>Tomography, Emission-Computed, Single-Photon - methods</subject><subject>Tomography, X-Ray Computed - methods</subject><issn>1071-3581</issn><issn>1532-6551</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2023</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNp9Uctu1TAQjRCIlsIPsECW2LAx-JHYCWJTXcpDqgQSZW35OuMrV4kd7KRVP48_Y0JaQCy6mrHPY6Rzquo5Z685Y_pN4UI2jDIhKZOCM3r9oDrmjRRUNQ1_iDvTnMqm5UfVk1IuGWOd7LrH1ZFUbd0p2RxXP3dpnGwOJUWSPJlSCXNI0Q7E5jl46-ZCQiTjTXI29wH_J8h-KcghYbSHEA8rXpYpRCA29qTAGGgGN4S4gneOBDX47KEPzs7Qk_f029ez3QXZfB3OEbJ9S67sEHr7jwQ5e1tQYecZ4rJBLmW8sa5Pq0feDgWe3c6T6vuHs4vdJ3r-5ePn3ek5dbVoZ-qt1I3m4LVynbWCc3DMu05A7YGppuMMd7tXignB-33DnIN97VrvlLZCypPq1eY75fRjgTKbMRQHw2AjpKUYoVumlagbhdSX_1Ev05IxVGS1Wuq2rtlqKDaWy6mUDN5MGSPNN4YzsxZstoINFmx-F2yuUfTi1nrZj9D_kdw1igS5EQpC8QD57-17bd9tKsAErwKqigsQHba1xmz6FO6T_wKseclz</recordid><startdate>20231001</startdate><enddate>20231001</enddate><creator>Chopra, Sejal</creator><creator>Singh, Shashank Shekhar</creator><creator>Sood, Ashwani</creator><creator>Parmar, Madan</creator><creator>Parihar, Ashwin Singh</creator><creator>Vadi, Shelvin Kumar</creator><creator>Mittal, Bhagwant Rai</creator><general>Elsevier Inc</general><general>Springer International Publishing</general><general>Springer Nature B.V</general><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>K9.</scope><scope>NAPCQ</scope><scope>7X8</scope></search><sort><creationdate>20231001</creationdate><title>Comparison of positional artifacts in myocardial perfusion imaging in supine and semi-reclining position using dedicated D-SPECT cardiac camera: validation using CT based attenuation correction</title><author>Chopra, Sejal ; Singh, Shashank Shekhar ; Sood, Ashwani ; Parmar, Madan ; Parihar, Ashwin Singh ; Vadi, Shelvin Kumar ; Mittal, Bhagwant Rai</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c428t-fa37571ef76c9aa211ec0fc92e4fe06591092eab660221db50cceb4c8fc67a233</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2023</creationdate><topic>CAD</topic><topic>Cameras</topic><topic>Cardiology</topic><topic>Female</topic><topic>Humans</topic><topic>image analysis</topic><topic>Image Processing, Computer-Assisted</topic><topic>Imaging</topic><topic>infarction</topic><topic>Male</topic><topic>Medicine</topic><topic>Medicine & Public Health</topic><topic>MPI</topic><topic>myocardial ischemia</topic><topic>Myocardial Perfusion Imaging - methods</topic><topic>Nuclear Medicine</topic><topic>Original Article</topic><topic>Radiology</topic><topic>SPECT</topic><topic>Supine Position</topic><topic>Tomography, Emission-Computed, Single-Photon - methods</topic><topic>Tomography, X-Ray Computed - methods</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Chopra, Sejal</creatorcontrib><creatorcontrib>Singh, Shashank Shekhar</creatorcontrib><creatorcontrib>Sood, Ashwani</creatorcontrib><creatorcontrib>Parmar, Madan</creatorcontrib><creatorcontrib>Parihar, Ashwin Singh</creatorcontrib><creatorcontrib>Vadi, Shelvin Kumar</creatorcontrib><creatorcontrib>Mittal, Bhagwant Rai</creatorcontrib><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>ProQuest Health & Medical Complete (Alumni)</collection><collection>Nursing & Allied Health Premium</collection><collection>MEDLINE - Academic</collection><jtitle>Journal of nuclear cardiology</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Chopra, Sejal</au><au>Singh, Shashank Shekhar</au><au>Sood, Ashwani</au><au>Parmar, Madan</au><au>Parihar, Ashwin Singh</au><au>Vadi, Shelvin Kumar</au><au>Mittal, Bhagwant Rai</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Comparison of positional artifacts in myocardial perfusion imaging in supine and semi-reclining position using dedicated D-SPECT cardiac camera: validation using CT based attenuation correction</atitle><jtitle>Journal of nuclear cardiology</jtitle><stitle>J. 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We prospectively analysed 150 patients acquired in supine and semi-reclining positions on CZT camera. The images were evaluated for severity and extent of defect using 17-segment model. An additional CT scan was acquired to generate AC image in the first 50 patients studied to assist investigator learning for comparison of artifact vs true defects in the two SPECT systems. The defects present in one position or showing change in severity within two positions were considered as positional artifacts and further validated using CTAC supine image.
In overall analysis, higher extent and severity of positional artifacts were observed more in semi-reclining position affecting the apex, apico-inferior, inferolateral and inferoseptal segments. Females showed more positional artifacts than males with inferior wall attenuation in the semireclining position and anterior wall attenuation in the supine position. A positive correlation of the extent and severity of positional artifacts was noted with an increasing BMI. In patients with BMI > 30, mid inferior and inferolateral segments were most affected followed by anterior wall segments. Highest correction of artifactual perfusion defects by CTAC was noted in inferior wall followed by inferolateral segments.
The incidence of positional artifacts was greater in semi-reclining position in females, higher BMI groups and adenosine stress subsets. Knowledge of the pattern of positional artifacts appears to be a reliable alternative of CTAC for correct interpretation of myocardial perfusion images.</abstract><cop>Cham</cop><pub>Elsevier Inc</pub><pmid>36849635</pmid><doi>10.1007/s12350-023-03210-w</doi><tpages>12</tpages></addata></record> |
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| subjects | CAD Cameras Cardiology Female Humans image analysis Image Processing, Computer-Assisted Imaging infarction Male Medicine Medicine & Public Health MPI myocardial ischemia Myocardial Perfusion Imaging - methods Nuclear Medicine Original Article Radiology SPECT Supine Position Tomography, Emission-Computed, Single-Photon - methods Tomography, X-Ray Computed - methods |
| title | Comparison of positional artifacts in myocardial perfusion imaging in supine and semi-reclining position using dedicated D-SPECT cardiac camera: validation using CT based attenuation correction |
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