Dual-source cardiac computed tomography angiography (CCTA) in the follow-up of cardiac transplant: comparison of image quality and radiation dose using three different imaging protocols
| Autor: | Ernest Spitzer, Christian Loewe, Veronika Schöpf, Gudrun Feuchtner, Sylvia Unterhumer, Dietrich Beitzke, Andreas Zuckermann, K. Uyanik-Uenal, Vanessa Berger-Kulemann, Mariann Gyöngyösi, Florian Wolf |
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| Rok vydání: | 2015 |
| Předmět: |
Adult
Male medicine.medical_specialty Systole medicine.medical_treatment Cardiac-Gated Imaging Techniques Radiation Dosage Effective dose (radiation) Electrocardiography Young Adult Postoperative Complications medicine Humans Radiology Nuclear Medicine and imaging Prospective Studies Prospective cohort study Aged Retrospective Studies Neuroradiology Aged 80 and over Heart transplantation business.industry Ultrasound Reproducibility of Results Heart Retrospective cohort study General Medicine Middle Aged Coronary Vessels medicine.anatomical_structure Heart Transplantation Radiographic Image Interpretation Computer-Assisted Female Radiology Tomography X-Ray Computed Nuclear medicine business Tomography Spiral Computed Follow-Up Studies Artery |
| Zdroj: | European Radiology. 25:2310-2317 |
| ISSN: | 1432-1084 0938-7994 |
| DOI: | 10.1007/s00330-015-3650-2 |
| Popis: | To prospectively evaluate image quality (IQ) and radiation dose of dual-source cardiac computed tomography (CCTA) using different imaging protocols. CCTA was performed in 150 patients using the retrospective ECG-gated spiral technique (rECG) the prospective ECG-gated technique (pECG), or the prospective ECG-gated technique with systolic imaging and automated tube voltage selection (pECGsys). IQ was rated using a 16-segment coronary artery model. Techniques were compared for overall IQ, IQ of the large and the small coronary artery segments. Effective dose was used for comparison of radiation dose. Overall IQ and IQ of the large segments showed no differences between the groups. IQ analysis of the small segments showed lowered IQ in pECGsys compared to rECG (p = 0.02), but not to pECG (p = 0.6). Effective dose did not differ significantly between rECG and pECG (p = 0.13), but was significantly lower for pECGsys (p |
| Databáze: | OpenAIRE |
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