Publications by authors named "Mark J Stoutjesdijk"

Background: Congenital heart diseases rarely have a primary manifestation in adulthood. They are a rare cause of pulmonary hypertension in adults.

Case Presentation: A 70-year-old woman of Eurasian descent underwent emergency surgery for bowel ischemia.

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A major challenge in value-based health care is the lack of standardized health outcomes measurements, hindering optimal monitoring and comparison of the quality of health care across different settings globally. The International Consortium for Health Outcomes Measurement (ICHOM) assembled a multidisciplinary international working group, comprised of 26 health care providers and patient advocates, to develop a standard set of value-based patient-centered outcomes for breast cancer (BC). The working group convened via 8 teleconferences and completed a follow-up survey after each meeting.

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Purpose: To evaluate automatic characterization of a breast MR lesion by its spatially coherent region of interest (ROI).

Materials And Methods: The method delineated 247 enhancing lesions using Otsu thresholding after manually placing a sphere. Mean Shift Clustering subdivided each volume, based on features including pharmacokinetic parameters.

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Purpose: To evaluate a new method for automated determination of a region of interest (ROI) for the analysis of contrast enhancement in breast MRI.

Materials And Methods: Mean shift multidimensional clustering (MS-MDC) was employed to divide 92 lesions into several spatially contiguous clusters each, based on multiple enhancement parameters. The ROIs were defined as the clusters with the highest probability of malignancy.

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Rationale And Objective: The objective of this study was to evaluate the interobserver variability in reporting descriptive kinetic and morphologic enhancement features at breast magnetic resonance imaging.

Materials And Methods: Four observers evaluated 103 lesions, 49 malignant and 54 benign, proven by histopathology. They used standardized terminology with the following characteristics: "early enhancement kinetics" and "late enhancement kinetics" in curves from both reader-determined and preset regions of interest (ROIs), "enhancement pattern," "shape," "margin," "internal enhancement," and a final assessment score.

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