caa a22 4500 606171371 CHVBK 20210128100722.0 cr unu---uuuuu 210128e20151201xx s 000 0 eng 10.1007/s10140-015-1340-7 doi (NATIONALLICENCE)springer-10.1007/s10140-015-1340-7 Reduced z -axis technique for CT Pulmonary angiography in pregnancy—validation for practical use and dose reduction [Elektronische Daten] [Kaushik Shahir, Jonathan McCrea, Luis Lozano, Lawrence Goodman] The aim of this study is to determine the feasibility of using reduced scan range CT pulmonary angiography technique in pregnancy for pulmonary embolism (PE) and to quantify resulting dose reduction. This was a retrospective study. Eighty-four CTPA exams performed on pregnant women during 2004-2012. The scans were modified to create reduced anatomic coverage scans extending from aortic arch to base of heart. These were separately evaluated by two radiologists for PE and non-PE abnormalities. The results were then compared by the third radiologist with original radiology report and scans. Radiation dose reduction was evaluated prospectively in 36 patients as part of a quality control project. Two patients had PE and were successfully identified on reduced z-axis scans. Thirty-two exams were normal; rest had 60 pertinent and 16 had incidental findings. There were four incidental findings which included three benign thyroid nodules and one benign small lung nodule which were missed. None of these affected clinical outcome or management. There was 71% radiation dose reduction. No PE or any important diagnoses are missed using reduced z-axis CTPA in pregnancy. There is a substantial radiation dose reduction. Hence, this technique is highly recommended in pregnancy. American Society of Emergency Radiology, 2015 Pulmonary embolism nationallicence Pregnancy nationallicence Radiation dose reduction nationallicence CT nationallicence CTPA nationallicence Shahir Kaushik Department of Radiology, Medical College of Wisconsin, 9200 West Wisconsin Avenue, 53226-3596, Milwaukee, WI, USA aut McCrea Jonathan Department of Radiology, Medical College of Wisconsin, 9200 West Wisconsin Avenue, 53226-3596, Milwaukee, WI, USA aut Lozano Luis Department of Radiology, Medical College of Wisconsin, 9200 West Wisconsin Avenue, 53226-3596, Milwaukee, WI, USA aut Goodman Lawrence Department of Radiology, Medical College of Wisconsin, 9200 West Wisconsin Avenue, 53226-3596, Milwaukee, WI, USA aut Emergency Radiology Springer Berlin Heidelberg 22/6(2015-12-01), 651-656 1070-3004 22:6<651 2015 22 10140 https://doi.org/10.1007/s10140-015-1340-7 text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s10140-015-1340-7 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Shahir Kaushik Department of Radiology, Medical College of Wisconsin, 9200 West Wisconsin Avenue, 53226-3596, Milwaukee, WI, USA aut NATIONALLICENCE 700 1- McCrea Jonathan Department of Radiology, Medical College of Wisconsin, 9200 West Wisconsin Avenue, 53226-3596, Milwaukee, WI, USA aut NATIONALLICENCE 700 1- Lozano Luis Department of Radiology, Medical College of Wisconsin, 9200 West Wisconsin Avenue, 53226-3596, Milwaukee, WI, USA aut NATIONALLICENCE 700 1- Goodman Lawrence Department of Radiology, Medical College of Wisconsin, 9200 West Wisconsin Avenue, 53226-3596, Milwaukee, WI, USA aut NATIONALLICENCE 773 0- Emergency Radiology Springer Berlin Heidelberg 22/6(2015-12-01), 651-656 1070-3004 22:6<651 2015 22 10140