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Although physicians are aware of phantom limb pain, which can occur in up to 85% of patients who undergo amputation, and its potential effect on functional status, the presence of phantom pain after amputation of other body parts such as the breast and its effect on function may be less appreciated. We report the case of a 63-yr-old woman with multiple sclerosis who underwent a modified radical mastectomy for left intraductal breast carcinoma. After her mastectomy, she required a brief course of inpatient rehabilitation and was discharged from rehabilitation independent, with feeding, dressing, hygiene, and transfers. Two months after her mastectomy, she had difficulty with these tasks because of phantom breast pain. Accurate diagnosis of her pain and successful treatment resulted in a return to premorbid functional status.
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http://dx.doi.org/10.1097/01.phm.0000133430.27325.c4 | DOI Listing |
Math Biosci Eng
October 2024
Department of Mechanical and Mechatronics Engineering, University of Waterloo, 200 University Avenue West, Waterloo, ON N2L 3G1, Canada.
This study presented a novel approach for the precise ablation of breast tumors using focused ultrasound (FUS), leveraging a physics-informed neural network (PINN) integrated with a realistic breast model. FUS has shown significant promise in treating breast tumors by effectively targeting and ablating cancerous tissue. This technique employs concentrated ultrasonic waves to generate intense heat, effectively destroying cancerous tissue.
View Article and Find Full Text PDFEur Radiol
December 2024
University of Crete, Medical School, Department of Medical Physics, 71003, Heraklion, Crete, Greece.
Objectives: To compare the radiation exposure from single-energy CT (SECT) against rapid kV-switching dual-energy CT (DECT) imaging in both adults and children when resulting image data offer equivalent lesion identification power.
Materials And Methods: Lesions in an adult and a 10-year-old-child body phantom were imitated using iodine solutions of different concentrations. Phantoms were subjected to several SECT and DECT thoracic and abdominal scans using a rapid kV-switching DECT scanner.
In certain three-dimensional (3D) applications of photoacoustic computed tomography (PACT), including \textit{in vivo} breast imaging, hemispherical measurement apertures that enclose the object within their convex hull are employed for data acquisition. Data acquired with such measurement geometries are referred to as \textit{half-scan} data, as only half of a complete spherical measurement aperture is employed. Although previous studies have demonstrated that half-scan data can uniquely and stably reconstruct the sought-after object, no closed-form reconstruction formula for use with half-scan data has been reported.
View Article and Find Full Text PDFFront Oncol
November 2024
Advanced Imaging Research Center, Oregon Health and Science University, Portland, OR, United States.
Quantitative dynamic contrast-enhanced (DCE) MRI as a promising method for the prediction of breast cancer response to neoadjuvant chemotherapy (NAC) has been demonstrated mostly in single-center and single-vendor platform studies. This preliminary study reports the initial experience in implementing quantitative breast DCE-MRI in multi-center (MC) and multi-vendor platform (MP) settings to predict NAC response. MRI data, including B mapping, variable flip angle (VFA) measurements of native tissue R (R), and DCE-MRI, were acquired during NAC at three sites using 3T systems with Siemens, Philips, and GE platforms, respectively.
View Article and Find Full Text PDFRadiography (Lond)
December 2024
Department of Physics, Institut Teknologi Sepuluh Nopember, Kampus ITS, Sukolilo Surabaya 60111, East Java, Indonesia. Electronic address:
Introduction: Phantom materials with tissue-equivalent physical properties that require regular evaluation using patented phantoms are essential for medical device quality assurance programs. This study evaluated phantom materials for tissue equivalence and their use in image quality assessment for breast ultrasound scanner performance testing using two custom-made phantoms.
Methods: Two types of phantoms were developed: phantoms A and B.
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