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Article: Optimization of Cardiac MSCT Contrast Injection Protocols. Dependency of the Main Bolus Contrast Density on Test Bolus Parameters and Patients' Body Weight

TitleOptimization of Cardiac MSCT Contrast Injection Protocols. Dependency of the Main Bolus Contrast Density on Test Bolus Parameters and Patients' Body Weight
Authors
Keywordsbody weight
Computed tomography
coronary CTA
main bolus
test bolus
Issue Date2008
Citation
Academic Radiology, 2008, v. 15, n. 1, p. 49-57 How to Cite?
AbstractRationale and Objectives: Our aim was to evaluate the correlation of test bolus (TB) curve parameters with main bolus (MB) contrast density for cardiac 16-slice computed tomography, and to correlate observed enhancement with patient body weight. Materials and Methods: Sixty patients with known or suspected coronary artery disease were included in a prospective double-blind study. Contrast material containing 300 mg iodine/mL (Iomeprol 300; Imeron 300, Bracco Imaging SpA, Milan, Italy) and 400 mg iodine/mL (Iomeprol 400; Imeron 400) was injected at a rate of 1 g of iodine/second. Contrast densities (Hounsfield units) of the MB were determined in the left cardiac system. The peak density (PD) of maximum attenuation and the area under the curve (AUC) of the TB curve were calculated for each patient. The dependency of MB contrast attenuation on these parameters and on patient body weight was evaluated. Results: Positive correlations (r = 0.52 and r = 0.56, respectively; P < .0001) were obtained between the PD and AUC of the TB curve with the mean density of the MB. Stronger correlations (r = 0.63 and r = 0.64, respectively; P < .0001) between PD and AUC of the TB curve and MB attenuation were found when patient body weight was included in the analysis. Conclusions: Strong correlation of the PD and AUC of the TB curve with the mean density of the MB is observed when patient body weight is considered. Contrast injection protocols may be optimized, and variations of MB contrast density in the left ventricle and main coronary arteries reduced, by taking these TB parameters and the weight of the patient into account. © 2008 AUR.
Persistent Identifierhttp://hdl.handle.net/10722/315993
ISSN
2023 Impact Factor: 3.8
2023 SCImago Journal Rankings: 1.062
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorRist, Carsten-
dc.contributor.authorBecker, Christoph R.-
dc.contributor.authorKirchin, Miles A.-
dc.contributor.authorJohnson, Thorsten R.-
dc.contributor.authorBusch, Stefanie-
dc.contributor.authorBae, Kyongtae Ty-
dc.contributor.authorLeber, Alexander W.-
dc.contributor.authorReiser, Maximilian F.-
dc.contributor.authorNikolaou, Konstantin-
dc.date.accessioned2022-08-24T15:48:52Z-
dc.date.available2022-08-24T15:48:52Z-
dc.date.issued2008-
dc.identifier.citationAcademic Radiology, 2008, v. 15, n. 1, p. 49-57-
dc.identifier.issn1076-6332-
dc.identifier.urihttp://hdl.handle.net/10722/315993-
dc.description.abstractRationale and Objectives: Our aim was to evaluate the correlation of test bolus (TB) curve parameters with main bolus (MB) contrast density for cardiac 16-slice computed tomography, and to correlate observed enhancement with patient body weight. Materials and Methods: Sixty patients with known or suspected coronary artery disease were included in a prospective double-blind study. Contrast material containing 300 mg iodine/mL (Iomeprol 300; Imeron 300, Bracco Imaging SpA, Milan, Italy) and 400 mg iodine/mL (Iomeprol 400; Imeron 400) was injected at a rate of 1 g of iodine/second. Contrast densities (Hounsfield units) of the MB were determined in the left cardiac system. The peak density (PD) of maximum attenuation and the area under the curve (AUC) of the TB curve were calculated for each patient. The dependency of MB contrast attenuation on these parameters and on patient body weight was evaluated. Results: Positive correlations (r = 0.52 and r = 0.56, respectively; P < .0001) were obtained between the PD and AUC of the TB curve with the mean density of the MB. Stronger correlations (r = 0.63 and r = 0.64, respectively; P < .0001) between PD and AUC of the TB curve and MB attenuation were found when patient body weight was included in the analysis. Conclusions: Strong correlation of the PD and AUC of the TB curve with the mean density of the MB is observed when patient body weight is considered. Contrast injection protocols may be optimized, and variations of MB contrast density in the left ventricle and main coronary arteries reduced, by taking these TB parameters and the weight of the patient into account. © 2008 AUR.-
dc.languageeng-
dc.relation.ispartofAcademic Radiology-
dc.subjectbody weight-
dc.subjectComputed tomography-
dc.subjectcoronary CTA-
dc.subjectmain bolus-
dc.subjecttest bolus-
dc.titleOptimization of Cardiac MSCT Contrast Injection Protocols. Dependency of the Main Bolus Contrast Density on Test Bolus Parameters and Patients' Body Weight-
dc.typeArticle-
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1016/j.acra.2007.08.005-
dc.identifier.pmid18078906-
dc.identifier.scopuseid_2-s2.0-36749044845-
dc.identifier.volume15-
dc.identifier.issue1-
dc.identifier.spage49-
dc.identifier.epage57-
dc.identifier.isiWOS:000251984600006-

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