A look inside: cardiopulmonary resuscitation using a 4D computed tomography model of simulated closed chest compression. A proof of concept.

<p>Aim:</p><p>To 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 0-8-0 cm.</p><p>Methods:</p><p>Sequential 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 0-3cm, 0-5 cm, and 0-8 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.</p><p>Results:</p><p>Time-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</p><p>Conclusions: The method described could assist CPR researchers and educators in the development and demonstration of effective CPR protocols.</p>