Subjective Assessment of Eight CT Features in the Prediction of Dysthyroid Optic Neuropathy.

Purpose: To evaluate the subjective assessment of 8 orbital CT features for predicting dysthyroid optic neuropathy (DON).

Methods: Scan montages from 137 orbits without DON and 121 with DON were each graded independently by 3 observers for 8 imaging features: namely, degree of apical crowding, extraocular muscle enlargement, expansion of orbital fat, clarity of the superior orbital fissure, fat prolapse through the superior orbital fissure, medial wall bowing, general orbital vascular congestion, and dilation of the superior ophthalmic vein. Gradings were analyzed individually and also averaged across observers.

Factors associated with sexually transmitted reinfections, number of sexual partners and condom use among previously infected young people.

BackgroundSexually transmitted infections (STIs) are prevalent in young people. Digital interventions promoting safer sexual behaviours are low-cost and scalable. We use data from a randomised controlled trial of one such potential intervention (safetxt) to investigate factors associated with STI reinfection and risky sexual behaviours.

Reproducibility of the Unaided Subjective Assessment of Orbital Computed X-Ray Tomographic Features in Thyroid Eye Disease.

Purpose: To assess the reproducibility of subjective interpretation of computed x-ray tomography for 8 features associated with thyroid eye disease.

Methods: Patients with confirmed thyroid eye disease had 3 distinct orbital computed x-ray tomography sections presented as anonymized montages to 3 masked observers (#1 orbital radiologist, #2 general radiologist, and #3 orbital surgeon). Eight features were graded: superior orbital fissure clarity, degree of orbital fat prolapse through the superior orbital fissure, loss of fat space at the apex, muscle enlargement, increase in orbital fat volume, vascular congestion, superior ophthalmic vein size, and lamina papyracea bowing.