Computational predictions of magnetic resonance acoustic radiation force imaging for breast cancer focused ultrasound therapy.

Purpose: In magnetic resonance-guided focused ultrasound (MRgFUS) breast therapies, the focal location must be characterized to guide successful treatment. Focal characterization is difficult because heterogeneous breast tissues introduce phase aberrations that blur and shift the focus and traditional guidance methods do not work in adipose tissues. The purpose of this work is to evaluate numerical simulations of MRgFUS that predict the focal location.

Use of an enuresis alarm to guide timing of post-void residual volume assessment in infants and medically-complex, non-verbal children.

Objectives: To test the feasibility and efficacy of using an enuresis alarm to guide timing of post-void residual (PVR) measurement in two different cohorts of non-verbal, non-toilet trained pediatric patients.

Methods: We prospectively enrolled 15 infants (Group 1) and 15 medically-complex patients (Group 2) to undergo an 8-hour study period that included a 4-hour intervention period with alarm (PVR after alarm trigger) and a 4-hour control period of routine care (PVR when nurses observe wet diapers). The primary endpoint of PVR volume was analyzed using linear regression with volume as the dependent variable and both study period and patient weight as independent variables.

An Updated Demographic Profile of Orthopaedic Surgery Using a New ABOS Data Set.

Introduction: The orthopaedic surgery physician workforce is predominately White and male and has been identified as the least diverse medical specialty. Increasing efforts toward diversification within orthopaedic surgery are underway. Evaluating the effectiveness of these programs requires a thorough understanding of the current demographic profile of the profession.