where an imaging stress test or invasive coronary angiography is being deferred unless absolutely necessary; the ACC defines high-risk surgery as emergent operations, especially in the elderly, aortic and other major vascular surgeries, peripheral vascular surgeries, and anticipated prolonged surgical proce...
(except spine) Chest Abdomen and/or pelvis Spine Limbs 56.9 57.9 63.8 23.8 25.4 11.7 11.8 10.3 8.8 8.0 3.0 3.0 3.0 2.7 2.5 23.1 22.5 15.6 44.1 43.2 9.1 8.2 13.2 37.8 38.8 1.4 1.4 1.6 1.0 0.7 1.7 1.7 1.6 0.9 0.8 Abbreviations: CNS ¼ central nervous system; CT ¼ computed ...
We did not include radiation doses from other common medical exposures, such as plain radiographs, CT of the chest, and CT of the abdomen, in our analyses. Their exclusion is unlikely to have introduced major bias, because the radiation exposure to the head from such scans is typically ...