Performance of an Artificial Intelligence System for Breast Cancer Detection on Screening Mammograms from BreastScreen Norway.

Purpose To explore the stand-alone breast cancer detection performance, at different risk score thresholds, of a commercially available artificial intelligence (AI) system. Materials and Methods This retrospective study included information from 661 695 digital mammographic examinations performed among 242 629 female individuals screened as a part of BreastScreen Norway, 2004-2018. The study sample included 3807 screen-detected cancers and 1110 interval breast cancers.

Personalized Breast Cancer Screening: A Risk Prediction Model Based on Women Attending BreastScreen Norway.

Background: We aimed to develop and validate a model predicting breast cancer risk for women targeted by breast cancer screening.

Method: This retrospective cohort study included 57,411 women screened at least once in BreastScreen Norway during the period from 2007 to 2019. The prediction model included information about age, mammographic density, family history of breast cancer, body mass index, age at menarche, alcohol consumption, exercise, pregnancy, hormone replacement therapy, and benign breast disease.

Risk factors for venous gas emboli after decompression from prolonged hyperbaric exposures.

Introduction: The physical forces governing gas phase nucleation and growth in a liquid would predict less variation in the development of decompression sickness (DCS) than is known to occur in people.

Methods: In order to gain insight into the causes of biological susceptibility to DCS, we analyzed a dataset containing 250 human steady-state hyperbaric exposures using multivariate ordinal and linear regression analysis for relationships between venous gas emboli (VGE) and exposure parameters and subject characteristics.

Results: In both previously published data and new chamber exposure data, we found that the strongest predictor of VGE magnitude after decompression was the duration and depth of the hyperbaric exposure, as predicted.

Susceptibility of divers in open water to motion sickness.

Several aspects of the environment of divers should increase their susceptibility to motion sickness: a) sensory conflicts, b) body fluid redistribution, and c) nitrogen narcosis. We tested motion sickness susceptibility by placing subjects on a rotating platform and having them perform stylized heat movements that produced cross-coupled angular accelerations in vestibular end organs until nausea developed. This test was performed once each day on 9 consecutive days while subjects were immersed at the end of 3-4 h of diving.