Effect of patient characteristics on aortic attenuation in iodinated contrast-enhanced Abdominopelvic CT: A retrospective study
Contrast Enhanced Computed Tomography (CECT) abdomen and pelvis is a common imaging procedure. Hospitals typically follow fixed protocols of contrast volume administration for triple-phase CECT abdomen and pelvis scans and have found that patients are either underdosed or overdosed with respect to t...
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| Veröffentlicht in: | Radiography (London, England. 1995) England. 1995), 2024-06, Vol.30, p.94-101 |
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| creator | Varughese, N.A. Panakkal, N.C. Nair, V.T. Kadavigere, R. Lakshmi, V. Sukumar, S. |
| description | Contrast Enhanced Computed Tomography (CECT) abdomen and pelvis is a common imaging procedure. Hospitals typically follow fixed protocols of contrast volume administration for triple-phase CECT abdomen and pelvis scans and have found that patients are either underdosed or overdosed with respect to their body habitus. The aim of the study was to correlate different patient characteristics such as Total body weight (TBW), Lean Body Mass (LBM), Body Mass Index (BMI), Body Surface Area (BSA) and Blood Volume (BV) with aortic enhancement in the arterial and portal venous phases for CECT Abdomen and pelvis.
A total of 106 patients who underwent triple-phase CECT abdomen & pelvis were retrospectively studied. A circular region-of-interest (ROI) of 100 mm2 was positioned on descending aorta for unenhanced, arterial, and portal venous phases to measure the aortic enhancement in Hounsfield's units. Measure of contrast attenuation (ΔH) was calculated from the difference of CT values on unenhanced images and contrast images. Correlation analysis was performed to evaluate the relation of patient body characteristics with aortic enhancement.
Correlation analysis revealed that BMI exhibited the least correlation when compared to the other characteristics in both arterial (r = −0.3; p = 0.002) and portovenous phases (r = −0.35; p |
| doi_str_mv | 10.1016/j.radi.2024.07.012 |
| format | Article |
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A total of 106 patients who underwent triple-phase CECT abdomen & pelvis were retrospectively studied. A circular region-of-interest (ROI) of 100 mm2 was positioned on descending aorta for unenhanced, arterial, and portal venous phases to measure the aortic enhancement in Hounsfield's units. Measure of contrast attenuation (ΔH) was calculated from the difference of CT values on unenhanced images and contrast images. Correlation analysis was performed to evaluate the relation of patient body characteristics with aortic enhancement.
Correlation analysis revealed that BMI exhibited the least correlation when compared to the other characteristics in both arterial (r = −0.3; p = 0.002) and portovenous phases (r = −0.35; p < 0.001) whereas TBW, LBW, BSA and BV reported moderate inverse correlations. BV was found to be the strongest of all characteristics under linear regression.
The study supports the use of protocols that adjust contrast volume to either TBW, LBW, BSA, or BV for CT abdomen and pelvis scan.
The right body parameter ensures optimal contrast enhancement, improving the visualization of anatomical structures and helps in adapting tailored contrast injection protocols.</description><identifier>ISSN: 1078-8174</identifier><identifier>ISSN: 1532-2831</identifier><identifier>EISSN: 1532-2831</identifier><identifier>DOI: 10.1016/j.radi.2024.07.012</identifier><identifier>PMID: 39106556</identifier><language>eng</language><publisher>Netherlands: Elsevier Ltd</publisher><subject>Aortic attenuation ; BMI ; Body size index ; Contrast ; Contrast enhancement ; Indian population</subject><ispartof>Radiography (London, England. 1995), 2024-06, Vol.30, p.94-101</ispartof><rights>2024 The Author(s)</rights><rights>Copyright © 2024 The Author(s). Published by Elsevier Ltd.. All rights reserved.</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><cites>FETCH-LOGICAL-c281t-71aba1d84d86526a3cb000346361084f56413722990e437d30ba776c37a4b09f3</cites><orcidid>0000-0003-0428-6926 ; 0000-0003-3725-6774 ; 0000-0001-9345-9790</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/j.radi.2024.07.012$$EHTML$$P50$$Gelsevier$$Hfree_for_read</linktohtml><link.rule.ids>314,780,784,3550,27924,27925,45995</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/39106556$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Varughese, N.A.</creatorcontrib><creatorcontrib>Panakkal, N.C.</creatorcontrib><creatorcontrib>Nair, V.T.</creatorcontrib><creatorcontrib>Kadavigere, R.</creatorcontrib><creatorcontrib>Lakshmi, V.</creatorcontrib><creatorcontrib>Sukumar, S.</creatorcontrib><title>Effect of patient characteristics on aortic attenuation in iodinated contrast-enhanced Abdominopelvic CT: A retrospective study</title><title>Radiography (London, England. 1995)</title><addtitle>Radiography (Lond)</addtitle><description>Contrast Enhanced Computed Tomography (CECT) abdomen and pelvis is a common imaging procedure. Hospitals typically follow fixed protocols of contrast volume administration for triple-phase CECT abdomen and pelvis scans and have found that patients are either underdosed or overdosed with respect to their body habitus. The aim of the study was to correlate different patient characteristics such as Total body weight (TBW), Lean Body Mass (LBM), Body Mass Index (BMI), Body Surface Area (BSA) and Blood Volume (BV) with aortic enhancement in the arterial and portal venous phases for CECT Abdomen and pelvis.
A total of 106 patients who underwent triple-phase CECT abdomen & pelvis were retrospectively studied. A circular region-of-interest (ROI) of 100 mm2 was positioned on descending aorta for unenhanced, arterial, and portal venous phases to measure the aortic enhancement in Hounsfield's units. Measure of contrast attenuation (ΔH) was calculated from the difference of CT values on unenhanced images and contrast images. Correlation analysis was performed to evaluate the relation of patient body characteristics with aortic enhancement.
Correlation analysis revealed that BMI exhibited the least correlation when compared to the other characteristics in both arterial (r = −0.3; p = 0.002) and portovenous phases (r = −0.35; p < 0.001) whereas TBW, LBW, BSA and BV reported moderate inverse correlations. BV was found to be the strongest of all characteristics under linear regression.
The study supports the use of protocols that adjust contrast volume to either TBW, LBW, BSA, or BV for CT abdomen and pelvis scan.
The right body parameter ensures optimal contrast enhancement, improving the visualization of anatomical structures and helps in adapting tailored contrast injection protocols.</description><subject>Aortic attenuation</subject><subject>BMI</subject><subject>Body size index</subject><subject>Contrast</subject><subject>Contrast enhancement</subject><subject>Indian population</subject><issn>1078-8174</issn><issn>1532-2831</issn><issn>1532-2831</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2024</creationdate><recordtype>article</recordtype><recordid>eNp9kE1r3DAQhkVoaNK0fyCHomMvdvVhS3LpZVnSDwjkkp6FLI2Jll3LleSFnPLXO8umPRYEGobnHWkeQm45aznj6vOuzS7EVjDRtUy3jIsLcs17KRphJH-DNdOmMVx3V-RdKTvGkBTmLbmSA2eq79U1ebmbJvCVpokurkaYK_VPLjtfIcdSoy80zdSljCV1tcK8IoatiCeFOLsKgfo01-xKbWB-crPHzmYM6RDntMD-iMnt4xe6oRlqTmXB9-IRaKlreH5PLie3L_Dh9b4hv77dPW5_NPcP339uN_eNF4bXRnM3Oh5MF4zqhXLSj7iN7JRUnJlu6lXHpRZiGBh0UgfJRqe18lK7bmTDJG_Ip_PcJaffK5RqD7F42O_dDGktVjIzGI3aOKLijHr8bMkw2SXHg8vPljN7Em939iTensRbpi2Kx9DH1_nreIDwL_LXNAJfzwDglscI2RaPutFVzCjEhhT_N_8PQr6VXA</recordid><startdate>20240601</startdate><enddate>20240601</enddate><creator>Varughese, N.A.</creator><creator>Panakkal, N.C.</creator><creator>Nair, V.T.</creator><creator>Kadavigere, R.</creator><creator>Lakshmi, V.</creator><creator>Sukumar, S.</creator><general>Elsevier Ltd</general><scope>6I.</scope><scope>AAFTH</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7X8</scope><orcidid>https://orcid.org/0000-0003-0428-6926</orcidid><orcidid>https://orcid.org/0000-0003-3725-6774</orcidid><orcidid>https://orcid.org/0000-0001-9345-9790</orcidid></search><sort><creationdate>20240601</creationdate><title>Effect of patient characteristics on aortic attenuation in iodinated contrast-enhanced Abdominopelvic CT: A retrospective study</title><author>Varughese, N.A. ; Panakkal, N.C. ; Nair, V.T. ; Kadavigere, R. ; Lakshmi, V. ; Sukumar, S.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c281t-71aba1d84d86526a3cb000346361084f56413722990e437d30ba776c37a4b09f3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2024</creationdate><topic>Aortic attenuation</topic><topic>BMI</topic><topic>Body size index</topic><topic>Contrast</topic><topic>Contrast enhancement</topic><topic>Indian population</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Varughese, N.A.</creatorcontrib><creatorcontrib>Panakkal, N.C.</creatorcontrib><creatorcontrib>Nair, V.T.</creatorcontrib><creatorcontrib>Kadavigere, R.</creatorcontrib><creatorcontrib>Lakshmi, V.</creatorcontrib><creatorcontrib>Sukumar, S.</creatorcontrib><collection>ScienceDirect Open Access Titles</collection><collection>Elsevier:ScienceDirect:Open Access</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>MEDLINE - Academic</collection><jtitle>Radiography (London, England. 1995)</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Varughese, N.A.</au><au>Panakkal, N.C.</au><au>Nair, V.T.</au><au>Kadavigere, R.</au><au>Lakshmi, V.</au><au>Sukumar, S.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Effect of patient characteristics on aortic attenuation in iodinated contrast-enhanced Abdominopelvic CT: A retrospective study</atitle><jtitle>Radiography (London, England. 1995)</jtitle><addtitle>Radiography (Lond)</addtitle><date>2024-06-01</date><risdate>2024</risdate><volume>30</volume><spage>94</spage><epage>101</epage><pages>94-101</pages><issn>1078-8174</issn><issn>1532-2831</issn><eissn>1532-2831</eissn><abstract>Contrast Enhanced Computed Tomography (CECT) abdomen and pelvis is a common imaging procedure. Hospitals typically follow fixed protocols of contrast volume administration for triple-phase CECT abdomen and pelvis scans and have found that patients are either underdosed or overdosed with respect to their body habitus. The aim of the study was to correlate different patient characteristics such as Total body weight (TBW), Lean Body Mass (LBM), Body Mass Index (BMI), Body Surface Area (BSA) and Blood Volume (BV) with aortic enhancement in the arterial and portal venous phases for CECT Abdomen and pelvis.
A total of 106 patients who underwent triple-phase CECT abdomen & pelvis were retrospectively studied. A circular region-of-interest (ROI) of 100 mm2 was positioned on descending aorta for unenhanced, arterial, and portal venous phases to measure the aortic enhancement in Hounsfield's units. Measure of contrast attenuation (ΔH) was calculated from the difference of CT values on unenhanced images and contrast images. Correlation analysis was performed to evaluate the relation of patient body characteristics with aortic enhancement.
Correlation analysis revealed that BMI exhibited the least correlation when compared to the other characteristics in both arterial (r = −0.3; p = 0.002) and portovenous phases (r = −0.35; p < 0.001) whereas TBW, LBW, BSA and BV reported moderate inverse correlations. BV was found to be the strongest of all characteristics under linear regression.
The study supports the use of protocols that adjust contrast volume to either TBW, LBW, BSA, or BV for CT abdomen and pelvis scan.
The right body parameter ensures optimal contrast enhancement, improving the visualization of anatomical structures and helps in adapting tailored contrast injection protocols.</abstract><cop>Netherlands</cop><pub>Elsevier Ltd</pub><pmid>39106556</pmid><doi>10.1016/j.radi.2024.07.012</doi><tpages>8</tpages><orcidid>https://orcid.org/0000-0003-0428-6926</orcidid><orcidid>https://orcid.org/0000-0003-3725-6774</orcidid><orcidid>https://orcid.org/0000-0001-9345-9790</orcidid><oa>free_for_read</oa></addata></record> |
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| subjects | Aortic attenuation BMI Body size index Contrast Contrast enhancement Indian population |
| title | Effect of patient characteristics on aortic attenuation in iodinated contrast-enhanced Abdominopelvic CT: A retrospective study |
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