An Application for Skin Macules Characterization Based on a 3-Stage Image-Processing Algorithm for Patients with Diabetes.

Diabetic skin manifestations, previous to ulcers and wounds, are not highly accounted as part of diagnosis even when they represent the first symptom of vascular damage and are present in up to 70% of patients with diabetes mellitus type II. Here, an application for skin macules characterization based on a three-stage segmentation and characterization algorithm used to classify vascular, petechiae, trophic changes, and trauma macules from digital photographs of the lower limbs is presented. First, in order to find the skin region, a logical multiplication is performed on two skin masks obtained from color space transformations; dynamic thresholds are stabilised to self-adjust to a variety of skin tones. Then, in order to locate the lesion region, illumination enhancement is performed using a chromatic model color space, followed by a principal component analysis gray-scale transformation. Finally, characteristics of each type of macule are considered and classified; morphologic properties (area, axes, perimeter, and solidity), intensity properties, and a set of shade indices (red, green, blue, and brown) are proposed as a measure to obviate skin color differences among subjects. The values calculated show differences between macules with a statistical significance, which agree with the physician's diagnosis. Later, macule properties are fed to an artificial neural network classifier, which proved a 97.5% accuracy, to differentiate between them. Characterization is useful in order to track macule changes and development along time, provides meaningful information to provide early treatments, and offers support in the prevention of amputations due to diabetic feet. A graphical user interface was designed to show the properties of the macules; this application could be the background of a future Diagnosis Assistance Tool for educational (i.e., untrained physicians) and preventive assistance technology purposes.

[National Registry of Cardiac Rehabilitation Programs in México]. / Registro Nacional sobre Programas de Rehabilitación Cardíaca en México (RENAPREC).

Cardiac Rehabilitation and secondary prevention programs are a group of therapeutic maneuvers that can reduce the adverse impact of cardiovascular disease, by using the cardiovascular risk factors reduction, through secondary prevention and exercise training therapy programs. This program started in Mexico in 1944, since then, several health institutions are working on a public or private basis, mainly in an isolated way. This article presents data about fourteen cardiac rehabilitation institutions that answered the first national registry of cardiac rehabilitation programs (RENAPREC) in 2007. On this study, we observed that these centers were mainly private; nevertheless, almost all of the referred population was attended in public health institutions. The core-components for an adequate cardiac rehabilitation attention were satisfied by almost all these centers. The patients used to pay, by their own, this kind of medical practice. In our country, only the 0.58% of the population, that needed to be included on a cardiac rehabilitation program, was covered. This phenomena is due, in one hand, to the reduced number of cardiac rehabilitation centers in Mexico, but on the other hand, it happens because the primary physician do not refer all the eligible patients to this kid of programs. RENAPREC can be one first attempt to consolidate all the activities around the inter-institutional cardiac rehabilitation and secondary prevention programs in our country.

Registro Nacional sobre Programas de Rehabilitación Cardíaca en México (RENAPREC) / National Registry of Cardiac Rehabilitation Programs in México

Cardiac Rehabilitation and secondary prevention programs are a group of therapeutic maneuvers that can reduce the adverse impact of cardiovascular disease, by using the cardiovascular risk factors reduction, through secondary prevention and exercise training therapy programs. This program started in Mexico in 1944, since then, several health institutions are working on a public or private basis, mainly in an isolated way. This article presents data about fourteen cardiac rehabilitation institutions that answered the first national registry of cardiac rehabilitation programs (RENAPREC) in 2007. On this study, we observed that these centers were mainly private; nevertheless, almost all of the referred population was attended in public health institutions. The core-components for an adequate cardiac rehabilitation attention were satisfied by almost all these centers. The patients used to pay, by their own, this kind of medical practice. In our country, only the 0.58% of the population, that needed to be included on a cardiac rehabilitation program, was covered. This phenomena is due, in one hand, to the reduced number of cardiac rehabilitation centers in Mexico, but on the other hand, it happens because the primary physician do not refer all the eligible patients to this kid of programs. RENAPREC can be one first attempt to consolidate all the activities around the inter-institutional cardiac rehabilitation and secondary prevention programs in our country.