Der Einfluss verschiedener Jodkonzentrationen auf die Kontrastierung der Oberbauchorgane im biphasischen Mehrschicht-Spiral-CT
| Autor: | E Grabbe, L Kopka, C Harz, B Engeroff |
|---|---|
| Rok vydání: | 2001 |
| Předmět: |
Aorta
business.industry Iopromide chemistry.chemical_element Iodine 030218 nuclear medicine & medical imaging 03 medical and health sciences 0302 clinical medicine medicine.anatomical_structure chemistry 030220 oncology & carcinogenesis medicine.artery Medicine Abdomen Radiology Nuclear Medicine and imaging Multislice Iohexol Bolus tracking business Nuclear medicine Pancreas medicine.drug |
| Zdroj: | RöFo - Fortschritte auf dem Gebiet der Röntgenstrahlen und der bildgebenden Verfahren. 173:938-941 |
| ISSN: | 1438-9010 1438-9029 |
| DOI: | 10.1055/s-2001-17591 |
| Popis: | UNLABELLED Impact of different iodine concentrations on abdominal enhancement in biphasic multislice helical CT (MS-CT). PURPOSE To evaluate if different iodine concentrations of a contrast material (c.m.) have an impact on abdominal enhancement in MS-CT during the arterial (AP) and portal venous phase (PVP). MATERIALS AND METHODS 75 patients underwent biphasic CT of the abdomen. They were assigned to three equally sized groups. For all patients a non-ionic c.m. (iopromide, Ultravist, Schering AG, Berlin) with different iodine concentrations and a constant total iodine load of 37 g with an injection flow rate of 4 ml/s was used. The volume of the c.m. differed depending on the iodine concentrations: group 1 (123 ml of 300 mgl/ml); group 2 (112 ml of 335 mgl/ml); group 3 (100 ml of 370 mgl/ml). The scan delay was optimized by using a bolus tracking device. The groups were compared concerning their mean enhancement of aorta, spleen, pancreas, and liver in the AP and PVP. RESULTS The comparison of the three groups showed an improved enhancement in aorta, spleen, and pancreas during the AP by using the higher c.m. concentrations. In the PVP the c.m. enhancement of aorta, liver, spleen, and pancreas was independent of the administered c.m. concentration. CONCLUSION Higher iodine concentrations of c.m. have a positive impact on abdominal enhancement during the AP. The concentration has no influence on the enhancement during the PVP of abdominal MS-CT. |
| Databáze: | OpenAIRE |
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