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Search: authors:"Terrence D. Ruddy MD"

7 papers found.
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Perioperative myocardial ischemia and isolated systolic hypertension in non-cardiac surgery

Purpose To determine whether patients with isolated systolic hypertension (ISH) undergoing non-cardiac surgery have a higher incidence of perioperative myocardial ischemia than normotensive patients and hence a greater risk for perioperative adverse events. Methods After obtaining Research Ethics Board approval, patients were recruited to either an ISH group (systolic blood ...

Automatic and visual reproducibility of perfusion and function measures for myocardial perfusion SPECT

Background We define the repeatability coefficients (RC) of key quantitative and visual perfusion and function parameters that can be derived by the QGS/QPS automated software and by expert visual observer from gated myocardial perfusion SPECT (MPS) scans. Methods Standard QGS/QPS algorithms have been applied to derive quantitative perfusion and function parameters in 200 ...