Scrotal thermoregulatory model and assessment of the impairment of scrotal temperature control in varicocele.

Varicocele is defined as the pathological dilatation of the pampiniform plexus and scrotal veins with venous blood reflux. Varicocele may impair scrotal thermoregulation and spermatogenesis, even when present in asymptomatic forms. In this study, we use the control system theory to model scrotal thermoregulation in response to a standardized cold challenge in order to study the functional thermal impairment secondary to varicocele.

Thermal imaging of cutaneous temperature modifications in runners during graded exercise.

In this paper we used high-resolution thermal imaging to visualize the human whole body anterior cutaneous temperature (T(c)) variations in well-trained runners during graded exercise. Fifteen male volunteers underwent a graded treadmill test until reaching their individual maximal heart rate. Total body T(c) decreased as the subjects started the exercise.

Infrared thermographic evaluation of temperature modifications induced during implant site preparation with cylindrical versus conical drills.

Background: A few studies have investigated the influence of drilling on bone healing. Many factors have been reported to influence temperature rise during surgical preparation for implant placement: drill geometry, drilling depth, sharpness of the cutting tool, drilling speed, pressure applied to the drill, use of graduated versus one-step drilling, intermittent versus continuous drilling, and use or not of irrigation.

Purpose: The objective of this study was to quantify the temperature changes in cortical bone and at the apical portion of the drills during implant site preparation with a cylindrical implant drill versus a conical implant drill.

Assessment of the effects of varicocelectomy on the thermoregulatory control of the scrotum.

Infrared functional imaging was successfully used to assess restoration of the normal thermal control of the scrotum after surgical treatment of varicoceles. The technique may be used to study the relationship between impaired scrotal thermoregulation and spermatogenesis.