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INTRODUCTION
INTRODUCTION
Prof. Jihoon Kang’s main area of expertise is in the field of medical imaging system based on radiation detectors. During the past 15 years he was involved in the development of medical instrumentations and new detection techniques. His early academic achievements were mainly related to the hybrid PET-MRI system. A MR-compatible small animal PET based on Geiger-mode avalanche photodiode (GAPD) and charge signal transmission (CST) approach, was successfully developed in 2009. These techniques were expanded to MR-compatible human brain PET for neuro-imaging in 2010, and were transferred to Chinese company (FMI Medical Systems, Inc.) in 2015.
Currently, a MR-compatible Breast PET providing multiple spatial resolutions using fine- and coarse-pitch crystals and depth-encoding capabilities inserting a glass plate between crystal layers is being jointly developed by Korea Institute of RAdiological & Medical Sciences (KIRAMS) and Prof. Jihoon Kang’s Laboratory (Medical Imaging System & Equipment Lab. at CNU). Additionally, he has developed the Dual Energy X-ray Absorptiometry (DEXA) replacing conventional CZT detector. Various prototypes integrating pencil-beam LYSO-GAPD detector, pencil-beam GAGG-GAPD detector, rotatable DEXA detector, and fan-beam LYSO-GAPD detector, have been successfully constructed and these technologies were transferred to Korean company (M.I.ONE Co., Ltd.) in 2019.
W.C. Röntgen reported the discovery of X-rays in December 1895 after seven weeks of assiduous work during which he had studied the properties of this new type of radiation able to go through screens of notable thickness. He named them X-rays to underline the fact that their nature was unknown.
W.C. Röntgen reported the discovery of X-rays in December 1895 after seven weeks of assiduous work during which he had studied the properties of this new type of radiation able to go through screens of notable thickness. He named them X-rays to underline the fact that their nature was unknown.
Since the first discovery of X-ray in 1895 by Wihelm Röentgen, today medical imaging has been explored in all area including Ultrasonic, Magnetic resonance imaging and X-ray machine which provide us visual image of human body's structure. As the technology advances like nuclear medicine (PET, SPECT), such modality can reveal not only internal structures but also functions of a human body.
Since the first discovery of X-ray in 1895 by Wihelm Röentgen, today medical imaging has been explored in all area including Ultrasonic, Magnetic resonance imaging and X-ray machine which provide us visual image of human body's structure. As the technology advances like nuclear medicine (PET, SPECT), such modality can reveal not only internal structures but also functions of a human body.
Basically, a medical imaging system consists of sensors which convert physical properties (light, sound, pressure, radiation) into electricity. Those electric signals will be processed through analog and digital circuits to get the needed information such as energy, frequency, and coarse time of pulse.
Basically, a medical imaging system consists of sensors which convert physical properties (light, sound, pressure, radiation) into electricity. Those electric signals will be processed through analog and digital circuits to get the needed information such as energy, frequency, and coarse time of pulse.
Besides, new image reconstruction algorithm are also the strong tool to improve the quality of image. Additionally, AI plays an important role in image processing nowadays, especially in solving tasks which requires the fast processing time.
Besides, new image reconstruction algorithm are also the strong tool to improve the quality of image. Additionally, AI plays an important role in image processing nowadays, especially in solving tasks which requires the fast processing time.
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