Low-voltage (80-kVp) abdominopelvic computed tomography allows 60% contrast dose reduction in patients at risk of contrast-induced nephropathy
The purpose of this study was to evaluate the quality of image in abdominopelvic late phase computed tomography (CT) with a low tube voltage plus low dose contrast medium (CM) protocol (80-kVp, 60% CM). A compared with the conventional protocol (120-kVp, 100% CM) B in the same patients. This study i...
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| creator | Araki, Kazumi Yoshizako, Takeshi Yoshida, Rika Tada, Keiji Kitagaki, Hajime |
| description | The purpose of this study was to evaluate the quality of image in abdominopelvic late phase computed tomography (CT) with a low tube voltage plus low dose contrast medium (CM) protocol (80-kVp, 60% CM). A compared with the conventional protocol (120-kVp, 100% CM) B in the same patients.
This study included with 22 patients {36 to 77 kg (mean: 55.5 kg)} who had renal insufficiency and had experience of performance conventional CT without renal insufficiency during pre-18 months. The CT value of the portal vein, liver parenchyma, abdominal aorta, psoas muscle was measured. The estimated mean CNR (contrast-to-noise ratios), FOM (figure of merit), DLP (dose length product) and ED (effective dose) were compared between protocol A and B. Moreover, two radiologists assessed the visual quality of the CT images.
The mean DLP and ED in the protocol B was about 50% lower than that in the protocol A (p |
| doi_str_mv | 10.1016/j.clinimag.2018.05.027 |
| format | Article |
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This study included with 22 patients {36 to 77 kg (mean: 55.5 kg)} who had renal insufficiency and had experience of performance conventional CT without renal insufficiency during pre-18 months. The CT value of the portal vein, liver parenchyma, abdominal aorta, psoas muscle was measured. The estimated mean CNR (contrast-to-noise ratios), FOM (figure of merit), DLP (dose length product) and ED (effective dose) were compared between protocol A and B. Moreover, two radiologists assessed the visual quality of the CT images.
The mean DLP and ED in the protocol B was about 50% lower than that in the protocol A (p < 0.01). The mean CT value of the portal vein and abdominal aorta in the protocol B were significantly higher than that in the protocol A (p < 0.01). All of the FOM in the protocol B was significantly higher than that in the protocol A (p < 0.01). However, there was no significant difference in the mean CNR and visual quality between protocol A and B.
Performance of abdominopelvic CT using a low tube voltage plus reduced CM dose (80-kVp, 60% CM) achieved reduction of the radiation dose without impairing image quality in relatively light weight group.
In abdominopelvic CT, protocol of low tube voltage (80-kVp) plus iodine dose reduction (60%) is able to provide the same quality of traditional protocols, also able to reducing radiation exposure (50%).
•The compared image quality in same patients undergoing abdominopelvic CT by a low tube voltage plus low dose CM protocol (80-kVp, 60% CM) and a conventional protocol (120-kVp, 100% CM) has not been reported to our knowledge.•Performance of abdominopelvic CT using a low tube voltage and reduced CM dose (80-kVp, 60% CM) achieved reduction of the radiation dose without impairing image quality.•In abdominopelvic CT, protocol of low tube voltage (80-kVp) and iodine dose reduction (60%) is able to provide the same quality of traditional protocols, also able to reducing radiation exposure (50%).•It is possible to reduce both the CM dose and radiation exposure for routine abdominopelvic CT by performing low voltage scanning.</description><identifier>ISSN: 0899-7071</identifier><identifier>EISSN: 1873-4499</identifier><identifier>DOI: 10.1016/j.clinimag.2018.05.027</identifier><identifier>PMID: 29982133</identifier><language>eng</language><publisher>United States: Elsevier Inc</publisher><subject>Abdomen ; Abdominopelvic CT ; Aged ; Aged, 80 and over ; Algorithms ; Aorta ; Aorta, Abdominal - diagnostic imaging ; Computation ; Computed tomography ; Contrast media ; Contrast Media - adverse effects ; Coronary vessels ; Electric potential ; Female ; Figure of merit ; Humans ; Image quality ; Iodine ; Iterative reconstruction ; Kidney Diseases - etiology ; Liver ; Male ; Medical imaging ; Middle Aged ; Muscles ; Nephropathy ; Noise ; Parenchyma ; Patients ; Portal vein ; Portal Vein - diagnostic imaging ; Prospective Studies ; Psoas muscle ; Quality ; Quality assessment ; Radiation ; Radiation Dosage ; Radiation dose ; Radiation effects ; Radiation Exposure ; Renal insufficiency ; Same patient ; Scanners ; Standard deviation ; Tomography ; Tomography, X-Ray Computed - methods ; Veins & arteries ; Voltage ; Weight reduction</subject><ispartof>Clinical imaging, 2018-09, Vol.51, p.352-355</ispartof><rights>2018 Elsevier Inc.</rights><rights>Copyright © 2018 Elsevier Inc. All rights reserved.</rights><rights>Copyright Elsevier Limited Sep 2018</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c396t-7763527943b6d2fa3137c9cf38a5adf617dab814a93bf08bf835d71e24ac1f1e3</citedby><cites>FETCH-LOGICAL-c396t-7763527943b6d2fa3137c9cf38a5adf617dab814a93bf08bf835d71e24ac1f1e3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/j.clinimag.2018.05.027$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,780,784,3549,27923,27924,45994</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/29982133$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Araki, Kazumi</creatorcontrib><creatorcontrib>Yoshizako, Takeshi</creatorcontrib><creatorcontrib>Yoshida, Rika</creatorcontrib><creatorcontrib>Tada, Keiji</creatorcontrib><creatorcontrib>Kitagaki, Hajime</creatorcontrib><title>Low-voltage (80-kVp) abdominopelvic computed tomography allows 60% contrast dose reduction in patients at risk of contrast-induced nephropathy</title><title>Clinical imaging</title><addtitle>Clin Imaging</addtitle><description>The purpose of this study was to evaluate the quality of image in abdominopelvic late phase computed tomography (CT) with a low tube voltage plus low dose contrast medium (CM) protocol (80-kVp, 60% CM). A compared with the conventional protocol (120-kVp, 100% CM) B in the same patients.
This study included with 22 patients {36 to 77 kg (mean: 55.5 kg)} who had renal insufficiency and had experience of performance conventional CT without renal insufficiency during pre-18 months. The CT value of the portal vein, liver parenchyma, abdominal aorta, psoas muscle was measured. The estimated mean CNR (contrast-to-noise ratios), FOM (figure of merit), DLP (dose length product) and ED (effective dose) were compared between protocol A and B. Moreover, two radiologists assessed the visual quality of the CT images.
The mean DLP and ED in the protocol B was about 50% lower than that in the protocol A (p < 0.01). The mean CT value of the portal vein and abdominal aorta in the protocol B were significantly higher than that in the protocol A (p < 0.01). All of the FOM in the protocol B was significantly higher than that in the protocol A (p < 0.01). However, there was no significant difference in the mean CNR and visual quality between protocol A and B.
Performance of abdominopelvic CT using a low tube voltage plus reduced CM dose (80-kVp, 60% CM) achieved reduction of the radiation dose without impairing image quality in relatively light weight group.
In abdominopelvic CT, protocol of low tube voltage (80-kVp) plus iodine dose reduction (60%) is able to provide the same quality of traditional protocols, also able to reducing radiation exposure (50%).
•The compared image quality in same patients undergoing abdominopelvic CT by a low tube voltage plus low dose CM protocol (80-kVp, 60% CM) and a conventional protocol (120-kVp, 100% CM) has not been reported to our knowledge.•Performance of abdominopelvic CT using a low tube voltage and reduced CM dose (80-kVp, 60% CM) achieved reduction of the radiation dose without impairing image quality.•In abdominopelvic CT, protocol of low tube voltage (80-kVp) and iodine dose reduction (60%) is able to provide the same quality of traditional protocols, also able to reducing radiation exposure (50%).•It is possible to reduce both the CM dose and radiation exposure for routine abdominopelvic CT by performing low voltage scanning.</description><subject>Abdomen</subject><subject>Abdominopelvic CT</subject><subject>Aged</subject><subject>Aged, 80 and over</subject><subject>Algorithms</subject><subject>Aorta</subject><subject>Aorta, Abdominal - diagnostic imaging</subject><subject>Computation</subject><subject>Computed tomography</subject><subject>Contrast media</subject><subject>Contrast Media - adverse effects</subject><subject>Coronary vessels</subject><subject>Electric potential</subject><subject>Female</subject><subject>Figure of merit</subject><subject>Humans</subject><subject>Image quality</subject><subject>Iodine</subject><subject>Iterative reconstruction</subject><subject>Kidney Diseases - etiology</subject><subject>Liver</subject><subject>Male</subject><subject>Medical imaging</subject><subject>Middle Aged</subject><subject>Muscles</subject><subject>Nephropathy</subject><subject>Noise</subject><subject>Parenchyma</subject><subject>Patients</subject><subject>Portal vein</subject><subject>Portal Vein - diagnostic imaging</subject><subject>Prospective Studies</subject><subject>Psoas muscle</subject><subject>Quality</subject><subject>Quality assessment</subject><subject>Radiation</subject><subject>Radiation Dosage</subject><subject>Radiation dose</subject><subject>Radiation effects</subject><subject>Radiation Exposure</subject><subject>Renal insufficiency</subject><subject>Same patient</subject><subject>Scanners</subject><subject>Standard deviation</subject><subject>Tomography</subject><subject>Tomography, X-Ray Computed - methods</subject><subject>Veins & arteries</subject><subject>Voltage</subject><subject>Weight reduction</subject><issn>0899-7071</issn><issn>1873-4499</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2018</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNqFkc1q3DAUhUVoaSZpXyEIQqFd2JEs25J2DaFNCgPdNN0KWT8zmtiSK8kT5iX6zFWYJNus7uJ-51zuOQBcYFRjhPurXa1G590kN3WDMKtRV6OGnoAVZpRUbcv5O7BCjPOKIopPwVlKO1SEvKUfwGnDOWswISvwbx0eq30Ys9wY-IWh6uHP_BXKQYfJ-TCbce8UVGGal2w0zGEKmyjn7QHKcQyPCfboc1n7HGXKUIdkYDR6UdkFD52Hs8zO-JygzDC69ACDfcUr5wtZXL2ZtzEUdHv4CN5bOSbz6Xmeg_sf33_f3FXrX7c_b67XlSK8zxWlPekaylsy9LqxkmBCFVeWMNlJbXtMtRwYbiUng0VssIx0mmLTtFJhiw05B5dH3zmGv4tJWezCEn05KZqSL-tQz1Ch-iOlYkgpGivmWCKPB4GReKpB7MRLDeKpBoE6UWoowotn-2WYjH6VveRegG9HwJQn985EkVQJqqTholFZ6ODeuvEf0pae0Q</recordid><startdate>201809</startdate><enddate>201809</enddate><creator>Araki, Kazumi</creator><creator>Yoshizako, Takeshi</creator><creator>Yoshida, Rika</creator><creator>Tada, Keiji</creator><creator>Kitagaki, Hajime</creator><general>Elsevier Inc</general><general>Elsevier Limited</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>8FD</scope><scope>FR3</scope><scope>K9.</scope><scope>M7Z</scope><scope>P64</scope></search><sort><creationdate>201809</creationdate><title>Low-voltage (80-kVp) abdominopelvic computed tomography allows 60% contrast dose reduction in patients at risk of contrast-induced nephropathy</title><author>Araki, Kazumi ; Yoshizako, Takeshi ; Yoshida, Rika ; Tada, Keiji ; Kitagaki, Hajime</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c396t-7763527943b6d2fa3137c9cf38a5adf617dab814a93bf08bf835d71e24ac1f1e3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2018</creationdate><topic>Abdomen</topic><topic>Abdominopelvic CT</topic><topic>Aged</topic><topic>Aged, 80 and over</topic><topic>Algorithms</topic><topic>Aorta</topic><topic>Aorta, Abdominal - diagnostic imaging</topic><topic>Computation</topic><topic>Computed tomography</topic><topic>Contrast media</topic><topic>Contrast Media - adverse effects</topic><topic>Coronary vessels</topic><topic>Electric potential</topic><topic>Female</topic><topic>Figure of merit</topic><topic>Humans</topic><topic>Image quality</topic><topic>Iodine</topic><topic>Iterative reconstruction</topic><topic>Kidney Diseases - etiology</topic><topic>Liver</topic><topic>Male</topic><topic>Medical imaging</topic><topic>Middle Aged</topic><topic>Muscles</topic><topic>Nephropathy</topic><topic>Noise</topic><topic>Parenchyma</topic><topic>Patients</topic><topic>Portal vein</topic><topic>Portal Vein - diagnostic imaging</topic><topic>Prospective Studies</topic><topic>Psoas muscle</topic><topic>Quality</topic><topic>Quality assessment</topic><topic>Radiation</topic><topic>Radiation Dosage</topic><topic>Radiation dose</topic><topic>Radiation effects</topic><topic>Radiation Exposure</topic><topic>Renal insufficiency</topic><topic>Same patient</topic><topic>Scanners</topic><topic>Standard deviation</topic><topic>Tomography</topic><topic>Tomography, X-Ray Computed - methods</topic><topic>Veins & arteries</topic><topic>Voltage</topic><topic>Weight reduction</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Araki, Kazumi</creatorcontrib><creatorcontrib>Yoshizako, Takeshi</creatorcontrib><creatorcontrib>Yoshida, Rika</creatorcontrib><creatorcontrib>Tada, Keiji</creatorcontrib><creatorcontrib>Kitagaki, Hajime</creatorcontrib><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>Technology Research Database</collection><collection>Engineering Research Database</collection><collection>ProQuest Health & Medical Complete (Alumni)</collection><collection>Biochemistry Abstracts 1</collection><collection>Biotechnology and BioEngineering Abstracts</collection><jtitle>Clinical imaging</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Araki, Kazumi</au><au>Yoshizako, Takeshi</au><au>Yoshida, Rika</au><au>Tada, Keiji</au><au>Kitagaki, Hajime</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Low-voltage (80-kVp) abdominopelvic computed tomography allows 60% contrast dose reduction in patients at risk of contrast-induced nephropathy</atitle><jtitle>Clinical imaging</jtitle><addtitle>Clin Imaging</addtitle><date>2018-09</date><risdate>2018</risdate><volume>51</volume><spage>352</spage><epage>355</epage><pages>352-355</pages><issn>0899-7071</issn><eissn>1873-4499</eissn><abstract>The purpose of this study was to evaluate the quality of image in abdominopelvic late phase computed tomography (CT) with a low tube voltage plus low dose contrast medium (CM) protocol (80-kVp, 60% CM). A compared with the conventional protocol (120-kVp, 100% CM) B in the same patients.
This study included with 22 patients {36 to 77 kg (mean: 55.5 kg)} who had renal insufficiency and had experience of performance conventional CT without renal insufficiency during pre-18 months. The CT value of the portal vein, liver parenchyma, abdominal aorta, psoas muscle was measured. The estimated mean CNR (contrast-to-noise ratios), FOM (figure of merit), DLP (dose length product) and ED (effective dose) were compared between protocol A and B. Moreover, two radiologists assessed the visual quality of the CT images.
The mean DLP and ED in the protocol B was about 50% lower than that in the protocol A (p < 0.01). The mean CT value of the portal vein and abdominal aorta in the protocol B were significantly higher than that in the protocol A (p < 0.01). All of the FOM in the protocol B was significantly higher than that in the protocol A (p < 0.01). However, there was no significant difference in the mean CNR and visual quality between protocol A and B.
Performance of abdominopelvic CT using a low tube voltage plus reduced CM dose (80-kVp, 60% CM) achieved reduction of the radiation dose without impairing image quality in relatively light weight group.
In abdominopelvic CT, protocol of low tube voltage (80-kVp) plus iodine dose reduction (60%) is able to provide the same quality of traditional protocols, also able to reducing radiation exposure (50%).
•The compared image quality in same patients undergoing abdominopelvic CT by a low tube voltage plus low dose CM protocol (80-kVp, 60% CM) and a conventional protocol (120-kVp, 100% CM) has not been reported to our knowledge.•Performance of abdominopelvic CT using a low tube voltage and reduced CM dose (80-kVp, 60% CM) achieved reduction of the radiation dose without impairing image quality.•In abdominopelvic CT, protocol of low tube voltage (80-kVp) and iodine dose reduction (60%) is able to provide the same quality of traditional protocols, also able to reducing radiation exposure (50%).•It is possible to reduce both the CM dose and radiation exposure for routine abdominopelvic CT by performing low voltage scanning.</abstract><cop>United States</cop><pub>Elsevier Inc</pub><pmid>29982133</pmid><doi>10.1016/j.clinimag.2018.05.027</doi><tpages>4</tpages></addata></record> |
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| subjects | Abdomen Abdominopelvic CT Aged Aged, 80 and over Algorithms Aorta Aorta, Abdominal - diagnostic imaging Computation Computed tomography Contrast media Contrast Media - adverse effects Coronary vessels Electric potential Female Figure of merit Humans Image quality Iodine Iterative reconstruction Kidney Diseases - etiology Liver Male Medical imaging Middle Aged Muscles Nephropathy Noise Parenchyma Patients Portal vein Portal Vein - diagnostic imaging Prospective Studies Psoas muscle Quality Quality assessment Radiation Radiation Dosage Radiation dose Radiation effects Radiation Exposure Renal insufficiency Same patient Scanners Standard deviation Tomography Tomography, X-Ray Computed - methods Veins & arteries Voltage Weight reduction |
| title | Low-voltage (80-kVp) abdominopelvic computed tomography allows 60% contrast dose reduction in patients at risk of contrast-induced nephropathy |
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