Medical Imaging(Introduction&Overview
Medical Imaging （Introduction & Overview）
Concept> Medical imaging is a clinical subject that use medicalimaging technology to diagnose human diseases and usepercutaneous puncture technique and interventionalequipment to perform minimally invasive diagnosis andtreatment of human diseases under the guidance ofmedical imaging technology>Diagnostic Imaging（影像诊断学）and interventionalRadiology（介入放射学）
➢ Medical imaging is a clinical subject that use medical imaging technology to diagnose human diseases and use percutaneous puncture technique and interventional equipment to perform minimally invasive diagnosis and treatment of human diseases under the guidance of medical imaging technology. ➢ Diagnostic Imaging（影像诊断学）and interventional Radiology（介入放射学） ◼ Concept
Methods> X-rayComputed tomography (CT) Magnetic rsonance imaging (MRI)Ultrasound(US)>DSA
◼ Methods ➢ X-ray ➢ Computed tomography（CT） ➢ Magnetic rsonance imaging（MRI） ➢ Ultrasound（US） ➢ DSA
Principleofradiography原理X-raycharacteristics:penetration（穿透性），absorbability（可吸收性），fluorescenteffect（荧光效应）andphotographiceffect（感光效应）Imaging conditions:differences of density and thicknessamong tissuesX-raytissuelowdensityhigh densitymid density11filmgrayblackwhite
➢ X-ray characteristics: penetration (穿透性), absorbability (可吸收性), fluorescent effect (荧光效应) and photographic effect (感光效应) ➢ Imaging conditions: differences of density and thickness among tissues ◼Principle of radiography原理 X-ray tissue film high density white low density black mid density gray
重庆医科大学儿童医院放射科
Contrast examinationContrast media:medicalbarium sulfate（医用硫酸钡）gastroenterography;iodine (碘)-angiography and urographyContrastintroduction pathwaydirect introductioninndirect introduction
Contrast media： medical barium sulfate (医用硫酸钡)- gastroenterography； iodine (碘)-angiography and urography ➢ Contrast introduction pathway direct introduction inndirect introduction ◼Contrast examination
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