Need to know about Optical Coherence Tomography (OCT): A Novel, Promising Imaging Modality, for examining Coronary arteries having 10-fold higher resolution than IVUS.

Download or read book Need to know about Optical Coherence Tomography (OCT): A Novel, Promising Imaging Modality, for examining Coronary arteries having 10-fold higher resolution than IVUS. written by Dr. Hakim. K. Saboowala and published by Dr.Hakim Saboowala. This book was released on 2022-03-24 with total page 50 pages. Available in PDF, EPUB and Kindle. Book excerpt: Need to know about Optical Coherence Tomography (OCT): A Novel, Promising Imaging Modality, for examining Coronary arteries having 10-fold higher resolution than IVUS. In cardiology, OCT is an optical analog of for IVUS examination is replaced intravascular ultrasound (IVUS), used to examine the coronary arteries. Ultrasound employed by near-infrared light with a wavelength of about 1,300 nm, which is absorbed by red blood cells, water, lipids, and protein at relatively low levels. Through a rotating glass fiber-optic system, coherent infrared light can be directed and reflected within the tissue to create a detailed tissue image with extraordinarily high resolution, and IVUS-like cross-sectional tomographic images can be obtained. OCT and IVUS differ in several respects. The resolution of OCT (to 10-20 µm) is about 10-fold higher than that of IVUS (to 100-150 µm), but the maximum depth of tissue penetration is lower with OCT (1-2 mm) than with IVUS (4-8 mm). Another important difference is related to the strong attenuation of light by blood, which originates from two sources: absorption by: · haemoglobin and · scattering by red blood cells. To examine coronary arteries, blood must first be removed during an OCT examination to eliminate massive scattering of light by red blood cells. Thus, an attempt has been made to discuss the role of OTC in Cardiology along with several relevant Tables and Illustrations for better understanding! …Dr. H. K. Saboowala. M.B.(Bom) .M.R.S.H.(London