Scott Swanson

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The authors have demonstrated that histotripsy (pulsed cavitational ultrasound) can create atrial septal defects and ventricular septal defects (VSDs) in an open-chest canine model transcutaneously through the intact chest of neonatal pigs. To assess the potential untoward effects of these applications, the clinical, systemic, and pathologic effects of(More)
Magnetic resonance imaging (MRI) tagging is a valuable technique for evaluating regional heart function. Currently, there are a number of different techniques for analyzing the tagged images. The purpose of this study is to compare the harmonic-phase (HARP) and sine-wave modeling (SinMod) tagging analysis techniques for evaluating myocardial strain and(More)
BACKGROUND The baboon (Papio hamadryas anubis) is an attractive model for intrauterine contraception research due to anatomic similarity to the human. Although non-human primates have previously been used for intrauterine contraception research, it was unknown whether modern intrauterine devices (IUDs) can be placed in an anatomically similar position in(More)
Background Type 1 diabetes (T1DM) may lead to changes in left ventricular (LV) function and cardiomyopathy in the absence of coronary artery disease or hypertension, possibly due to alterations in sympathetic innervation and myocardial oxidative metabolism and efficiency. The primary aim of this study is to evaluate the association between CMR imaging(More)
BACKGROUND In type I diabetes (T1DM), alterations in LV function may occur due to changes in innervation, metabolism, and efficiency. OBJECTIVES We evaluated the association between sympathetic nerve function, oxidative metabolism, resting blood flow, LV efficiency and function in healthy diabetics, and assessed gender differences. METHODS(More)
Background CMR tagging is a valuable technique for evaluating regional heart function. Currently, there are a number of different techniques for analyzing the tagged images, which are based on different analysis algorithms. The purpose of this study is to compare the harmonic phase (HARP) and sine-wave modeling (SinMod) tagging analysis techniques for(More)
OBJECTIVE We studied the association between glycemic variability (GV) reflecting hypoglycemic stress and cardiovascular autonomic function in subjects with type 1 diabetes. RESEARCH DESIGN AND METHODS Forty-four type 1 diabetic patients (mean age 34 ± 13 years, 40% male, 86% Caucasian, mean diabetes duration 13 ± 6 years, mean hemoglobin A1c [HbA1c] 8.0(More)
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