Hepatic transcriptomic assessment of Sprague Dawley rats in response to dietary perfluorobutane sulfonate (PFBS) ingestion.

Perfluorobutane sulfonate is a short-chain PFAS that is a less toxic replacement for the rather more toxic long-chain perfluorooctane sulfonate. PFBS is widespread in the environment and has raised environmental and health concerns. The study goal was to investigate whether dietary ingestion of PFBS would induce hepatic damage.

Enhancing patient-provider communication with the electronic self-report assessment for cancer: a randomized trial.

Purpose: Although patient-reported cancer symptoms and quality-of-life issues (SQLIs) have been promoted as essential to a comprehensive assessment, efficient and efficacious methods have not been widely tested in clinical settings. The purpose of this trial was to determine the effect of the Electronic Self-Report Assessment-Cancer (ESRA-C) on the likelihood of SQLIs discussed between clinicians and patients with cancer in ambulatory clinic visits. Secondary objectives included comparison of visit duration between groups and usefulness of the ESRA-C as reported by clinicians.

Acceptability of an Electronic Self-Report Assessment Program for patients with cancer.

Eliciting symptom and quality of life information from patients is an important component of medical and nursing care processes. Traditionally, this information has been collected with paper and pencil. However, this approach presents several barriers, including delays in receiving information, difficulty in integrating responses with electronic records, and the time required to manually score questionnaires for measurement purposes.

Depression screening using the Patient Health Questionnaire-9 administered on a touch screen computer.

Objective: To (1) evaluate the feasibility of touch screen depression screening in cancer patients using the Patient Health Questionnaire-9 (PHQ-9), (2) evaluate the construct validity of the PHQ-9 using the touch screen modality, and (3) examine the prevalence and severity of depression using this screening modality.

Methods: The PHQ-9 was placed in a web-based survey within a study of the clinical impact of computerized symptom and quality of life screening. Patients in medical oncology, radiation oncology, and hematopoietic stem cell transplantation (HSCT) clinics used the program on a touch screen computer in waiting rooms prior to therapy (T1) and during therapy (T2).

Automatic selection of non-coplanar beam directions for three-dimensional conformal radiotherapy.

An algorithm is described, based on ray-tracing and the beam's-eye-view, that exhaustively searches all permitted beam directions. The evaluation of the search is based on a general cost function that can be adapted to the clinical objectives by means of parameters and weighting factors. The approach takes into account the constraints of the linear accelerator by discarding beam directions that are not permitted.