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Biotech / Medical : COMPUTERIZED THERMAL IMAGING (COII)- research only -- Ignore unavailable to you. Want to Upgrade?

To: chirodoc who wrote (75)	2/4/1999 4:46:00 PM
From: chirodoc	Read Replies (1) \| Respond to of 256

thermal imaging is effective for brain imaging read this:"The main mechanisms of thermal responses recorded by TES are discussed: neural activity; local metabolism of units; local cerebral blood flow; and thermoconductivity in the activated zones of the cortex. Thermoencephaloscopy is a dynamic, non-invasive, contact-free, comparatively cheap, simple and inexpensive method of neuroimaging with a relatively high temporal and spatial resolution and sensitivity. It can be a useful tool in basic neuroscience and medicine." .....cheap, simple, and inexpensve--maybe hmo's will want a few for brease cancer. also note that they say that it registers metabolism, blood flow, and neural activity--sounds like it might pick up cancer! :-} Prog Neurobiol 1998 Oct;56(3):269-305 Functional imaging of the brain by infrared radiation (thermoencephaloscopy). Shevelev IA Department of Sensory Physiology, Institute of Higher Nervous Activity and Neurophysiology, Moscow, Russia. A technique for thermal imaging of the animal and human brain cortex using an infrared optical system is described. Thermoencephaloscopy (TES) is based on improved thermovision and image processing techniques and allows two-dimensional, contact-free, dynamic and non-invasive recording of background and evoked cortical activity through an unopened skull. Activated (heated) and deactivated (cooled) zones of the cerebral cortex are revealed. The instrumental temporal resolution of TES is 40 msec (25 maps sec-1), the spatial resolution is up to 70 x 70 microns pixel-1. The diameter of the smallest recordable active region of the cortex is 200-300 microns. TES allows to detect the position, size and sequence of activation of precisely located specific cortical zones, and to measure their dynamics before, during and after sensory and direct cortical stimulation, motor acts and conditioning (associative learning). TES effects were recorded in rats, rabbits, cats, monkeys and humans. Waves were found spreading over the cortex with a speed up to 33 mm sec-1 along trajectories specific for the sensory modality and the site of stimulation. Some pathological processes in the brain are detectable by TES: spreading depression; stress; catalepsy; experimental tumors; and epileptic focuses. The main mechanisms of thermal responses recorded by TES are discussed: neural activity; local metabolism of units; local cerebral blood flow; and thermoconductivity in the activated zones of the cortex. Thermoencephaloscopy is a dynamic, non-invasive, contact-free, comparatively cheap, simple and inexpensive method of neuroimaging with a relatively high temporal and spatial resolution and sensitivity. It can be a useful tool in basic neuroscience and medicine.

To: chirodoc who wrote (75)	3/2/1999 9:49:00 AM
From: chirodoc	Read Replies (1) \| Respond to of 256

cti vs. tmi It is my understanding that the difference between the TMI system and the CTI system is that the TMI system is specifically targetted at detecting malignant lesions of the breast, for which CTI and TMI feels that an endorsement (approval) by the FDA is needed in order to sell the doctors, hospitals, clinics, and insurance companies on the concept of using computerized thermal imaging. The CTI system is used for general computerized thermal imaging for other abnormalitues such as carpal tunnel syndrome, back pain, TMJ, sprains and strains, etc. CTI believes that they do not need FDA approval to market this general diagnostic device but they will need the agreement of the insurance companies to pay for these computerized thermal images. If and when CTI gets FDA approval for the breast cancer diagnostic system, this should give the insurance companies much more confidence in the concept of computerized thermal imaging for the other abnormalities