Research on Mask-Wearing Detection Algorithm Based on Improved YOLOv5.

COVID-19 is highly contagious, and proper wearing of a mask can hinder the spread of the virus. However, complex factors in natural scenes, including occlusion, dense, and small-scale targets, frequently lead to target misdetection and missed detection. To address these issues, this paper proposes a YOLOv5-based mask-wearing detection algorithm, YOLOv5-CBD.

Noncontrast dynamic magnetic resonance imaging for quantitative assessment of female sexual arousal.

Purpose: We evaluated a noncontrast, dynamic magnetic resonance imaging (MRI) technique for quantitative evaluation of the female sexual arousal response and compared these results with those of a previously described, contrast enhanced MRI technique.

Materials And Methods: Eight normal, healthy volunteer women underwent 2 separate MRI sessions, during which they were shown audiovisual material consisting of interleaved neutral and audiovisual sexual stimulation segments. Serial high resolution MRI of the genital structures was done at 3-minute intervals during a 45-minute period.

Serial MR imaging with MS-325 for evaluating female sexual arousal response: determination of intrasubject reproducibility.

Purpose: To determine if a similar sexual arousal response in normal, healthy women could be obtained and monitored by serial magnetic resonance (MR) imaging at two separate sessions.

Materials And Methods: Serial imaging of the external genitalia was performed on nine healthy, sexually functional women at two separate MR sessions after administration of the contrast agent, MS-325. Images were obtained every three minutes during a 45-minute study period during each MR session.

Magnetic resonance imaging anatomy of the female genitalia in premenopausal and postmenopausal women.

Purpose: We used contrast enhanced magnetic resonance imaging (MRI) of the female genital organs to describe normal anatomy and differences between premenopausal and postmenopausal women.

Materials And Methods: A total of 12 healthy premenopausal and 9 healthy postmenopausal women underwent MRI. A 1.

Dynamic MR imaging of the sexual arousal response in women.

The purpose of our studies was to evaluate whether MR imaging could be used to noninvasively observe and measure the sexual arousal response in normal women. We tested the feasibility as well as the reproducibility of rapid, dynamic, serial high-resolution MR imaging of the genital structures during presentation of neutral and sexually stimulating video material. Results show that these MRI techniques can visualize significant changes in clitoral volume during the stimulus segment of the video presentation.

Female genitalia: dynamic MR imaging with use of MS-325 initial experiences evaluating female sexual response.

Purpose: To determine whether magnetic resonance (MR) imaging with MS-325, a recently developed blood pool contrast agent, can depict sexual arousal response in healthy women.

Materials And Methods: Serial MR imaging of the external genitalia was performed in 12 healthy sexually functional women before and after administration of MS-325. MR images were obtained every 3 minutes during a 45-minute examination.