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Biomedical subjects

R M Sanders

Publications and source records attributed to R M Sanders.

14 recordsLinked to original sources
PubMed1995

A spreadsheet technique for dosimetry of transperineal prostate implants.

Although conceptually straightforward, dosimetry of permanent 125I seed prostate implants is not necessarily easy to implement in clinical practice, especially for institutions that are unwilling or unable to modify their commercial RTP systems. Spreadsheet techniques that aid in both preimplant treatment planning and post-implant dosimetric evaluation have been developed. The first spreadsheet converts the seed distribution expressed in terms of template grid coordinates to the format suitable for input into the RTP system, and determines the positions and loading patterns of individual needles. The second spreadsheet macroprogram is designed, as a modification of the Roy et al. [Int. J. Radiat. Oncol. Biol. Phys. 26, 163-169 (1993)] technique, to interactively determine physical seed locations from the post-implant CT images. Although less automated than described elsewhere, this approach was found acceptable for clinical practice at our institution.

Brachytherapy↗
PubMed1994

An unusual late presentation of imperforate hymen.

BACKGROUND: The imperforate hymen is a rare gynecologic abnormality that may not be detected until the onset of menses, when hematocolpos causes symptoms due to an expanding pelvic mass. CASE: A 19-year-old woman had primary amenorrhea, originally misdiagnosed as müllerian agenesis. Because of a combination of late onset of menses, vaginal dilation, and sexual intercourse, her hematocolpos remained relatively asymptomatic. CONCLUSION: Proper diagnosis of the imperforate hymen could have been made earlier by contrasting the ultrasound findings with the absence of associated genitourinary and skeletal anomalies. Magnetic resonance imaging can detect a uterus not previously seen on ultrasound. An early imaging study may further prevent the misdiagnosis of congenital absence of the uterus.

Adult↗
PubMed1990

Portable dental kit for nursing homes.

With the increased dentulism in older adults, more patients living in long term care facilities will be requiring dental care. A portable kit is presented here that allows a care-giver to provide limited interim treatment prior to the availability of definitive care by a dental practitioner. Included are some aids for improving the patient's ability to perform oral maintenance.

Aged↗
PubMed1989

Behavioral and clinical concerns for the geriatric dental patient.

Treatment of older adult patients involves more than clinical competence. A working knowledge of the nature of this population is crucial if impediments to care are to be removed. Medical status, psychological status, socioeconomic level, current drug regimens and mobility contribute to the successful pursuit and delivery of dental care. Misconception on the part of the practitioner can easily reinforce barriers to care rather than remove them. Today's dentist has an obligation to contribute to the maintenance of the patient's quality of life, not just their dentition.

Aged↗
PubMed1989

Are you a laggard?

Continuing education is an accepted and expected practice in dentistry today. Professional responsibility dictates contemporary knowledge be utilized in our patient treatment. As society becomes more health conscious, demands are being made for mandated participation in continuing education. For continuing education to be of value, it must present information and experiences that address both the needs of the adult learner and the profession. A variety of learning activities should be accepted for continuing education credit. Of the identifiable types of active practitioners, the laggard presents the most substantial problem. Mandatory education is one proposed method of drawing the laggard back into the life-long learning arena.

Education, Dental, Continuing↗
PubMed1988

Serum pituitary and steroid hormone levels in the adult male: one value is as good as the mean of three.

The result of the hormone concentration of one blood sample was used to determine the accuracy of predicting not only the hormone concentrations of a second and third sample drawn 15 minutes apart, but also the mean value of the three samples. Three blood specimens from 73 men involved in two previously reported studies (A and B) were assayed individually for luteinizing hormone, follicle-stimulating hormone, prolactin, testosterone, androstenedione, dehydroepiandrosterone sulfate, estradiol, and cortisol. The predictive correlation of one single hormone value, when compared with the mean of three values, was 0.90 or greater, except for prolactin in study A (0.86) and testosterone in study B (0.86). Since the hormone level obtained for one sample has such a high predictive value for the hormone levels of the other two samples, drawing more than one sample is redundant.

Adult↗