R. L. Smith
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View article: Biochemical Metrics for Parathyroid Scintigraphy in the Pre-Surgical Evaluation of Hyperparathyroidism
Biochemical Metrics for Parathyroid Scintigraphy in the Pre-Surgical Evaluation of Hyperparathyroidism Open
Purpose: To correlate parathyroid scintigraphy results with patient biochemistry, surgery, and pathology to inform appropriateness criteria and assess biochemical metrics in the imaging workup of hyperparathyroidism. Methods: This retrospe…
View article: P0660 Comparative Accuracy and Reliability of Handheld versus Cart-Based Ultrasound in assessing Inflammatory Bowel Disease Activity
P0660 Comparative Accuracy and Reliability of Handheld versus Cart-Based Ultrasound in assessing Inflammatory Bowel Disease Activity Open
Background Bowel wall thickness (BWT) and vascularity are key parameters for assessing inflammatory bowel disease (IBD) activity. Handheld ultrasound devices (HHUS) provide a portable and affordable alternative for incorporating intestinal…
View article: Dosimetric Evaluation of an Adaptive Planning Strategy for Implant Shift in HDR Prostate Brachytherapy
Dosimetric Evaluation of an Adaptive Planning Strategy for Implant Shift in HDR Prostate Brachytherapy Open
The occurrence of significant implant shifts between CT simulation planning and first fraction delivery is a frequent challenge for HDR prostate brachytherapy treatment. Here, we present evidence supporting the viability of a first-order a…
View article: P702 Long term outcomes following de-escalation of dose-intensified ustekinumab in patients with Crohn’s disease
P702 Long term outcomes following de-escalation of dose-intensified ustekinumab in patients with Crohn’s disease Open
Background Data on outcomes following de-escalation of dose-intensified ustekinumab (UST) in Crohn’s disease (CD) have not been reported. This retrospective cohort study aimed to evaluate the failure rates 6, 12, and 24 months after de-esc…
View article: AAPM WGDCAB Report 372: A joint AAPM, ESTRO, ABG, and ABS report on commissioning of model‐based dose calculation algorithms in brachytherapy
AAPM WGDCAB Report 372: A joint AAPM, ESTRO, ABG, and ABS report on commissioning of model‐based dose calculation algorithms in brachytherapy Open
The introduction of model‐based dose calculation algorithms (MBDCAs) in brachytherapy provides an opportunity for a more accurate dose calculation and opens the possibility for novel, innovative treatment modalities. The joint AAPM, ESTRO,…
View article: MaxiCalc: A tool for online dosimetric evaluation of source-tracking based treatment verification in HDR brachytherapy
MaxiCalc: A tool for online dosimetric evaluation of source-tracking based treatment verification in HDR brachytherapy Open
MaxiCalc is an independent tool that calculates doses and DVH indices from dwells measured with any clinical HDR brachytherapy source tracking system. This extends the capabilities of source tracking systems from determining discrepancies …
View article: Temporal determinants of tumour response to neoadjuvant rectal radiotherapy
Temporal determinants of tumour response to neoadjuvant rectal radiotherapy Open
Introduction In locally advanced rectal cancer, longer delay to surgery after neoadjuvant radiotherapy increases the likelihood of histopathological tumour response. Chronomodulated radiotherapy in rectal cancer has recently been reported …
View article: In vivo dosimetry in brachytherapy: Requirements and future directions for research, development, and clinical practice
In vivo dosimetry in brachytherapy: Requirements and future directions for research, development, and clinical practice Open
Brachytherapy can deliver high doses to the target while sparing healthy tissues due to its steep dose gradient leading to excellent clinical outcome. Treatment accuracy depends on several manual steps making brachytherapy susceptible to o…
View article: Activation of hip prostheses in high energy radiotherapy and resultant dose to nearby tissue
Activation of hip prostheses in high energy radiotherapy and resultant dose to nearby tissue Open
High energy radiotherapy can produce contaminant neutrons through the photonuclear effect. Patients receiving external beam radiation therapy to the pelvis may have high‐density hip prostheses. Metallic materials such as those in hip prost…
View article: Reproducibility assessment of dynamically deforming DEFGEL in a respiratory motion phantom
Reproducibility assessment of dynamically deforming DEFGEL in a respiratory motion phantom Open
Conducting four-dimensional deforming dosimetry with a deformable gel dosimeter presents several challenges for implementation and interpretation of results. In this work, we describe a modification to a respiratory motion phantom to accom…