《医学影像学 Medical Imaging》课程教学课件（PPT讲稿，儿科，2021）总论

Medical Imaging（医学影像学）--Introduction &Overview

Medical Imaging (医学影像学) -Introduction & Overview

ContentIntroduction to medical imagingOverview of diagnostic imaging

Content Introduction to medical imaging Overview of diagnostic imaging

Introduction to medical imaging01Concept03HistoryMedicalImaging02Category04Clinical application

Introduction to medical imaging 01 Concept 02 Category 03 History Medical Imaging 04 Clinical application

重庆医科大学附属儿童医院Concept & CategoryChidren'sHospitalotChongaingMedicalUnivershyConcept:Medical imaging is a clinical subject that use medical imaging technology todiagnose humandiseasesandusepercutaneouspuncturetechniqueandinterventional equipmenttoperformminimallyinvasive diagnosis andtreatmentof human diseasesundertheguidance ofmedical imagingtechnology≥ Category:Medical Imaging医学影像学Diagnostic ImagingInterventional Radiology影像诊断学介入放射学InterventionallnterventionalMRIUSX-rayCdiagnosistherapy

Concept & Category ➢ Concept: 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. ➢ Category:

重庆医科大学附属儿童医院History of medical imagingChidren's Hospital ot Chongaing Medical Universi)CT:Hounsfield&CormackX-ray:WillhelmRontgenUSDussitMRl:Mansfield&LauterburInterventionalNuclearMeficineRadlologyBlumgart1980s189519261970s19421940s

History of medical imaging X-ray: Wilhelm Rontgen 1942 CT: Hounsfield & Cormack 1895 1940s Interventional Radiology 1970s 1980s MRI: Mansfield & Lauterbur 1926

重庆医科大学附属儿童医院Clinical applicationChidren'sHospitalotChongaingMedicalUniversiDiagnostic imaging:Interventional radiology:①To identify the natureandtype ofPreferredtreatmentforcertaindiseases(Budd-Chiaridiseases,syndrome, aneurysms, etc.),②Tofurtherunderstandthescope?Treatment of certain acute diseases (deep venousthrombosis,etc.),and staging oflesions;Toevaluatethetherapeuticeffects③ Diseases for which surgical opportunities have been lost:andfollow-up,@Creatingconditionsforsurgery,Health screening@ Alternative treatment for patients reluctant to undergosurgery,@Biopsy under imaging guidance

Clinical application 03 05 ◼ Diagnostic imaging： ➢ ① To identify the nature and type of diseases; ➢ ② To further understand the scope and staging of lesions; ➢ ③ To evaluate the therapeutic effects and follow-up; ➢ ④ Health screening. ◼ Interventional radiology： ➢ ① Preferred treatment for certain diseases (Budd-Chiari syndrome, aneurysms, etc.); ➢ ② Treatment of certain acute diseases (deep venous thrombosis, etc.); ➢ ③ Diseases for which surgical opportunities have been lost; ➢ ④ Creating conditions for surgery; ➢ ⑤ Alternative treatment for patients reluctant to undergo surgery; ➢ ⑥ Biopsy under imaging guidance

Overview of diagnostic imagingX-rayimaging(Radiography,X线成像）Sect.lComputedtomography（CT，X线计算机体层成像）Sect.2Magneticrsonanceimaging（MRI，磁共振成像）Sect.3Molecularimaging（分子影像学）Sect.4Clinical applicationand comparison ofdifferent imaging techniquesSect.5Sect.6Picturearchivingandcommunicationsystems（PACS，图像存档传输系统）&radiological informationsystem（RIS）（信息放射学）

Overview of diagnostic imaging Sect.2 X-ray imaging (Radiography, X线成像) Computed tomography (CT, X线计算机体层成像) Magnetic rsonance imaging（MRI, 磁共振成像） Molecular imaging (分子影像学) Clinical application and comparison of different imaging techniques Picture archiving and communication systems (PACS, 图像存档传输系统) & radiological information system (RIS) (信息放射学) Sect.3 Sect.4 Sect.5 Sect.6 Sect.1

重庆医科大学附属儿童医院Sect.1 X-ray imaging (Radiography)Chidren's Hospital ot Chongaing Medical UnversihyI.Imaging principleII. Device and imaging propertiesIII.Examination methodsIV. Safety of X-ray imagingV. Image characteristics

Sect.1 X-ray imaging (Radiography) I. Imaging principle II. Device and imaging properties III. Examination methods IV. Safety of X-ray imaging V. Image characteristics

重庆医科大学附属儿童医院I. Principle of radiographyChidren'sHospitalotChongaingMedicalUniverslyX-raycharacteristics:penetration（穿透性）absorbability（可吸收性）fluorescenteffect（荧光效应）andphotographiceffect（感光效应）Imagingconditions:differencesofdensityandthicknessamongtissuesX-raytissuelowdensityhighdensitymiddensity1111filmgrayblackwhite

I. Principle of radiography ➢ 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 X-ray tissue film high density white low density black mid density gray

重庆医科大学附属儿童医院II. Device and imaging propertiesChidren's Hospital ot Chongaing MedicalUniversiyDeviceTraditionalX-raymachineDigital X-ray machine:Traditional X-rayTaditionaf radiographyChemicalmachinecombinedwithcomputersandXprocessingrayinformationchangedintodigitalinformation,includingCR(computedImaging plate,IPradiography)andDR(direct/digitalComputedradiography)tomographyFlatiDigitaf radiography

II. Device and imaging properties ◼ Device ➢ Traditional X-ray machine ➢ Digital X-ray machine: Traditional X-ray machine combined with computers and X￾ray information changed into digital information, including CR (computed radiography) and DR (direct/digital radiography) film Chemical processing Imaging plate,IP Flat panel detectors,FPD Laser reader Computed tomography Taditional radiography Digital radiography