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Biomedical subjects

G Shea

Publications and source records attributed to G Shea.

8 recordsLinked to original sources
PubMed1999

Use of a computerized digital camera in podiatric medical practice.

Multimedia technology was once rarely found outside the realm of commercial production studios or in elaborate computer games. However, with the addition of only a few simple accessories, recent advances have made this technology readily available to the podiatric medical practitioner on a desktop office computer. The role that the application of multimedia technology using a computerized digital camera can play in a podiatric medical practice--including in such areas as record keeping, outcome measurement, patient education, interdisciplinary communications, and practice-management tools--is discussed.

Computers↗
PubMed1990

Morphological and quantitative aspects of the development of cytoplasmic granules in concanavalin A-stimulated normal human lymphocytes.

We have studied normal human lymphocytes stimulated by concanavalin A to determine the rate and extent of development of cytoplasmic granules. Morphological studies on stimulated lymphocytes were undertaken at the light and electron microscopic level. The percentage of T lymphocytes bearing different CD antigens (CD3, CD4, and CD8) that also contained cytoplasmic granules was also assessed. Granules were identified in a high percentage of lymphocytes bearing each of the three CD markers studied.

Cell Survival↗
PubMed1986

Meeting the pastoral care needs of an aging population.

As hospitals increasingly operate nursing homes, retirement centers, and home health agencies, pastoral personnel will be challenged to demonstrate to hospital planners the importance of providing pastoral care for the elderly clients of these services. Older persons have significant needs that cannot be met by psychotherapy, social work, or other disciplines. The "young old," for example, are typically in early retirement and often feel useless and without dignity. The "middle old" are in transition between independence and dependence, health and chronic illness, and it is the thought of dying that most haunts them. The major concerns of the "frail old" are suffering and the provident care of God, particularly in the face of crippling or catastrophic illness. Through the process of life review and active listening, pastoral care specialists can help elderly persons find the inner power that produces hope and character. Departmental restructuring may be necessary, however, to meet the increased demand as the hospital moves into geriatric life care. Local church personnel could be used as well to provide hands-on service. Pastoral care departments should be alert to plans for hospital expansion and develop creative, long-range strategies for providing care.

Aged↗
PubMedDate not supplied

Instrumentation considerations of a clinical and a computerized technique for the measurement of foot angles.

Measurement of the foot angles either directly from the patient, from video images, or from radiographs is integral to podiatric clinical practice to confirm diagnoses and to plan, prescribe, and monitor treatment protocols. The reliability, precision, and accuracy involved in any measured value limits the validity and usefulness of the measurement to optimal patient management. Studies are described that ensured the accuracy and validity of the standard clinical tool, the universal goniometer (UG), by applying a calibration protocol. These same calibration angles were then measured by a computer-assisted human movement analysis system, the Ariel Performance Analysis System (APAS). The APAS was found to overestimate consistently the UG angular measures by less than 1 degree and this amount of error was considered clinically irrelevant. The angular results obtained by a clinician and a technician using the APAS on two separate days were tested and were found to be comparable and reliable to within 1 degree, and thus the analysis was deemed to be of excellent reliability and precision. The study found that clinicians could establish the accuracy and validity of their instruments by means of simple calibration, and that computer measures could be repeated on patients by a clinical or a technician. The simple calibration procedure described will assist the clinician to ensure that the measures obtained in the clinical setting have minimal measurement error and that the values can be confidently used to make decisions and draw clinical inferences.

Anthropometry↗
PubMedDate not supplied

An examination of plantar pressure measurements to identify the location of diabetic forefoot ulceration.

The purpose of this study was to evaluate pressure-time parameters on the sole of the foot in order to predict sites of pathology in diabetics. Mid-gait walking steps from 36 subjects diagnosed with diabetes and ulceration to the forefoot were analyzed using the Pedar in-shoe pressure analysis system. The time that weight was loaded on the hallux and lesser digits was found to be significantly shorter on the feet with ulceration compared to those without. A combination of five pressure measure reports could significantly differentiate between the three common locations of forefoot ulcerations. The significant pressure measure reports were the pressure-time integral measured over the whole foot and pressure-time integral and peak pressure measured separately at the first and combined lesser metatarsophalangeal joint regions. A preliminary model was developed using discriminate analysis that was accurate to 72.7% in identifying the location of the subjects' ulceration. Sensitivity and specificity formulas were calculated to demonstrate the diagnostic value of the model. The model accurately identified ulceration locations to a sensitivity of 83% and a specificity of 69%. Further refinement and testing is underway to refine the model to develop a screening tool to identify the site of potential foot ulceration and to prevent it and its sequelae of lower limb ulceration in the diabetic population.

Biomechanical Phenomena↗