• Kasper Hansen, Ruth Machin, Jonathon James, Timothy Coats, and Guy N Rutty.
• Department of Forensic Medicine, Aarhus University, DK-8200 Aarhus N, Denmark; Comparative Medicine Lab, Department of Clinical Medicine, Aarhus University, Palle Juul-Jensens Boulevard 99, DK-8200 Aarhus N, Denmark; Zoophysiology, Department of Biology, Aarhus University, C. F. Møllers Allé 3, DK-8000 Aarhus C, Denmark; University of Leicester, East Midlands Forensic Pathology Unit, Robert Kilpatrick Building, Level, Leicester Royal Infirmary, Leicester LE2 7LX, UK.
• Resuscitation. 2020 Aug 1; 153: 149-153.

AimTo mimic chest compression during cardiopulmonary resuscitation (CPR), this study aimed to produce time-resolved 3D (volumetric) reformats of thoracic and upper abdominal tissue movement during incremental closed chest compression/decompression from 0 to 8 to 0 cm.MethodsSequential angiography enhanced computed tomography (CT) scans were acquired from a recently deceased, consented adult cadaver with 1 cm incremental closed chest compression/decompression. Three compression/decompression sequences from 0 to 3 cm, 0 to 5 cm, and 0 to 8 cm, respectively, were scanned using a radio-opaque, manually operated, chest compression device. The multiphase volumetric data sets were compiled into 4D models that allowed for multiplanar reformatted and volume rendered image manipulation.ResultsTime-resolved volumetric (4D) models were produced using freeware to post-process the static CT scans. The 4D models allowed the study of simulated thoracic and upper abdominal content movement during closed chest compression.ConclusionsThe method described could assist CPR researchers and educators in the development and demonstration of effective CPR protocols.Copyright © 2020 The Author(s). Published by Elsevier B.V. All rights reserved.

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