Effectiveness of computed tomography attenuation values in characterization of pericardial effusion
Identifieur interne : 000610 ( Main/Exploration ); précédent : 000609; suivant : 000611Effectiveness of computed tomography attenuation values in characterization of pericardial effusion
Auteurs : Mehmet Serkan Çetin ; Elif Hande Zcan Çetin ; Mustafa Özdemir ; Serkan Topalo Lu ; Dursun Aras ; Ahmet Temizhan ; Sinan Aydo DuSource :
- Anatolian Journal of Cardiology [ 2149-2263 ] ; 2017.
Abstract
The aim of this study was to evaluate the effectiveness of computed tomography (CT) attenuation values in the characterization of pericardial effusion.
This study consisted of 96 patients with pericardial effusion who underwent pericardiocentesis. For further diagnostic evaluation of pericardial effusion, all the patients were assessed by thorax CT. CT attenuation values were measured from at least 5 different areas of pericardial fluid by specifying the largest region of interest. The average of these measurements was computed and considered as the CT attenuation value of the patient. The patients were classified into two groups: patients with transudative pericardial effusion and those with exudative pericardial effusion.
CT attenuation values were significantly higher in patients with exudative pericardial effusion than in those with transudative pericardial effusion [14.85±10.7 Hounsfield unit (HU) vs. 1.13±4.3 HU, p<0.001]. CT attenuation values had a close correlation with the pericardial fluid albumin (r=0.829), protein (r=0.752), and LDH (r=0.708) levels; WBC count (r=0.564); protein ratio (r=0.739); and LDH ratio (r=0.689) as well as the albumin gradient (r=–0.725). A cut-off value of 4.7 HU had 80% sensitivity and 87.7% specificity for the identification of exudative pericardial effusion. In addition, a cut-off value of 6.5 HU had 71.4% sensitivity and 72.3% specificity for the prediction of cardiac tamponade.
In patients with pericardial effusion, CT attenuation values seem to be correlated with the characterization parameters of the fluid and may distinguish exudative pericardial effusion from transudative pericardial effusion. This parameter was also found to be a predictor of cardiac tamponade. CT attenuation values can be a useful tool in the clinical evaluation of patients with pericardial effusion.
Url:
DOI: 10.14744/AnatolJCardiol.2016.7353
PubMed: 28100899
PubMed Central: 5469113
Affiliations:
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Ankara-<italic>Turkey</italic></nlm:aff></affiliation></author><author><name sortKey="Topalo Lu, Serkan" sort="Topalo Lu, Serkan" uniqKey="Topalo Lu S" first="Serkan" last="Topalo Lu">Serkan Topalo Lu</name><affiliation><nlm:aff id="aff1"></nlm:aff></affiliation></author><author><name sortKey="Aras, Dursun" sort="Aras, Dursun" uniqKey="Aras D" first="Dursun" last="Aras">Dursun Aras</name><affiliation><nlm:aff id="aff1"></nlm:aff></affiliation></author><author><name sortKey="Temizhan, Ahmet" sort="Temizhan, Ahmet" uniqKey="Temizhan A" first="Ahmet" last="Temizhan">Ahmet Temizhan</name><affiliation><nlm:aff id="aff1"></nlm:aff></affiliation></author><author><name sortKey="Aydo Du, Sinan" sort="Aydo Du, Sinan" uniqKey="Aydo Du S" first="Sinan" last="Aydo Du">Sinan Aydo Du</name><affiliation><nlm:aff id="aff1"></nlm:aff></affiliation></author></analytic><series><title level="j">Anatolian Journal of Cardiology</title><idno type="ISSN">2149-2263</idno><idno type="eISSN">2149-2271</idno><imprint><date when="2017">2017</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en"><sec id="st1"><title>Objective:</title><p>The aim of this study was to evaluate the effectiveness of computed tomography (CT) attenuation values in the characterization of pericardial effusion.</p></sec><sec id="st2"><title>Methods:</title><p>This study consisted of 96 patients with pericardial effusion who underwent pericardiocentesis. For further diagnostic evaluation of pericardial effusion, all the patients were assessed by thorax CT. CT attenuation values were measured from at least 5 different areas of pericardial fluid by specifying the largest region of interest. The average of these measurements was computed and considered as the CT attenuation value of the patient. The patients were classified into two groups: patients with transudative pericardial effusion and those with exudative pericardial effusion.</p></sec><sec id="st3"><title>Results:</title><p>CT attenuation values were significantly higher in patients with exudative pericardial effusion than in those with transudative pericardial effusion [14.85±10.7 Hounsfield unit (HU) vs. 1.13±4.3 HU, p<0.001]. CT attenuation values had a close correlation with the pericardial fluid albumin (r=0.829), protein (r=0.752), and LDH (r=0.708) levels; WBC count (r=0.564); protein ratio (r=0.739); and LDH ratio (r=0.689) as well as the albumin gradient (r=–0.725). A cut-off value of 4.7 HU had 80% sensitivity and 87.7% specificity for the identification of exudative pericardial effusion. In addition, a cut-off value of 6.5 HU had 71.4% sensitivity and 72.3% specificity for the prediction of cardiac tamponade.</p></sec><sec id="st4"><title>Conclusion:</title><p>In patients with pericardial effusion, CT attenuation values seem to be correlated with the characterization parameters of the fluid and may distinguish exudative pericardial effusion from transudative pericardial effusion. This parameter was also found to be a predictor of cardiac tamponade. CT attenuation values can be a useful tool in the clinical evaluation of patients with pericardial effusion.</p></sec></div></front><back><div1 type="bibliography"><listBibl><biblStruct><analytic><author><name sortKey="Sagrista Sauleda, J" uniqKey="Sagrista Sauleda J">J Sagristà-Sauleda</name></author><author><name sortKey="Merce, J" uniqKey="Merce J">J Mercé</name></author><author><name sortKey="Permanyer Miralda, G" uniqKey="Permanyer Miralda G">G Permanyer-Miralda</name></author><author><name sortKey="Soler Soler, J" uniqKey="Soler Soler J">J Soler-Soler</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Corey, Gr" uniqKey="Corey G">GR Corey</name></author><author><name sortKey="Campbell, Pt" uniqKey="Campbell P">PT Campbell</name></author><author><name sortKey="Van Trigt, P" uniqKey="Van Trigt P">P Van Trigt</name></author><author><name sortKey="Kenney, Rt" uniqKey="Kenney R">RT Kenney</name></author><author><name sortKey="O Connor, Cm" uniqKey="O 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last="Çetin">Mehmet Serkan Çetin</name><name sortKey="Ozdemir, Mustafa" sort="Ozdemir, Mustafa" uniqKey="Ozdemir M" first="Mustafa" last="Özdemir">Mustafa Özdemir</name><name sortKey="Temizhan, Ahmet" sort="Temizhan, Ahmet" uniqKey="Temizhan A" first="Ahmet" last="Temizhan">Ahmet Temizhan</name><name sortKey="Topalo Lu, Serkan" sort="Topalo Lu, Serkan" uniqKey="Topalo Lu S" first="Serkan" last="Topalo Lu">Serkan Topalo Lu</name></noCountry></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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