医学影像学英文课件：Introduction to Neuroradiology
CT成像原理介绍英文版医学知识讲解培训课件
MORE ATTENUATIOCNT成像原理介LES绍S 英ATTENUATION
文版医学知识讲解
5
How does CT Work?
X-ray generation Data acquisition Recon. & postpro.
CT成像原理介绍英
文版医学知识讲解
6
How does CT Work?
Non Slip-ring ScaCn文Tn版成er医像学原知理识S介l讲i绍p-解英ring Scanner
12
Computed Tomography
CT Basics Principle of Spiral CT Scan Parameter & Image Quality Optimizing Injection Protocols Clinical Applications
30 s
10mm P1
30s
More Coverage in the same time with extended Pitch!!
CT成像原理介绍10英mm P2
文版医学知识讲解
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Scan Range = 300mm
30s
15s
10mm P1 10 mm/s
10mm P2 20 mm/s
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文版医学知识讲In解crement
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Deep Inspiration
Shallow Inspiration
Standard CT / Slice Imaging
医学影像学专业英语
医学影像学专业英语Title: Advancements in Medical Imaging TechnologyMedical imaging is a pivotal field within the broader domain of healthcare, providing critical insights into the diagnosis, treatment, and management of diseases. Over the years, this field has witnessed remarkable advancements, transforming the way medical professionals approach patient care. This essay delves into the evolution of medical imaging technology, highlighting its significance in modern medicine and discussing future prospects.The journey of medical imaging began with simple X-rays in the late 19th century, which allowed for the visualization of bones and other dense structures within the body. This groundbreaking discovery laid the foundation for more sophisticated imaging techniques that followed. The development of computed tomography (CT) scans in the 1970s marked a significant milestone, enabling detailed cross-sectional images of the body's internal structures. CT scans revolutionized the diagnosis and monitoring of various conditions, from traumatic injuries to cancerous growths.Magnetic Resonance Imaging (MRI) further advanced the capabilities of medical imaging by utilizing powerful magnetsand radio waves to produce high-resolution images of soft tissues. Unlike X-rays and CT scans, MRI does not involve ionizing radiation, making it a safer option for repeated use and particularly beneficial for imaging the brain, spinal cord, and joints. The introduction of functional MRI (fMRI) expanded the scope of MRI by allowing doctors to observe brain activity and understand how different regions of the brain communicate with each other.Ultrasound imaging, another non-invasive technique, employs high-frequency sound waves to create real-time images of organs and tissues. Its portability, safety, andcost-effectiveness make ultrasound an indispensable tool in prenatal care, cardiovascular assessments, and guiding invasive procedures.Positron Emission Tomography (PET) scans represent yet another leap forward in medical imaging. By measuring metabolic processes, glucose metabolism, and blood flow within the body, PET scans are invaluable for detecting cancerous tissues, assessing treatment efficacy, and studying brain disorders such as Alzheimer's disease.The integration of artificial intelligence (AI) into medical imaging represents the latest frontier in this field. AIalgorithms can analyze vast amounts of imaging data rapidly and with high accuracy, assisting radiologists in identifying abnormalities that might be overlooked by the human eye. Moreover, AI-powered tools are being developed to predict disease progression and personalize treatment plans based on individual patient data.Despite these advancements, challenges remain. Ensuring equitable access to advanced imaging technologies across different populations and geographies is a significant concern. Additionally, the interpretation of complex imaging data requires highly trained professionals, underscoring the need for continuous education and training in medical imaging.Looking ahead, the future of medical imaging holds immense promise. Innovations such as molecular imaging, which targets specific biological processes at the cellular level, and photoacoustic imaging, which combines laser excitation with ultrasound detection, are poised to further enhance our understanding of disease mechanisms. As these technologies continue to evolve, they will undoubtedly play a crucial role in advancing personalized medicine and improving patient outcomes.In conclusion, the field of medical imaging has come along way since its inception, driven by continuous innovation and technological advancements. These developments have not only transformed diagnostic capabilities but also paved the way for new therapeutic approaches. As we look to the future, the integration of emerging technologies like AI promises to usher in a new era of precision medicine, ultimately leading to better health outcomes for patients worldwide.。
医学影像学课件：神经五官eng
Water molecular entered
into
cell
from
extracellular space，cell
become swelling
Cerebrospinal fluid
entered into white
MRI（include MRA、DWI、DTI、PWI、BOLD、MRS） DSA（include angiography and interventional treatment） Skull plain film（seldom used）
18
Common disease
1.Head trauma：Subdural hematoma、Epidural hematoma、Subarachnoid hemorrhage
2.Vascular diseases of the brain：Cerebral hemorrhage、Cerebral infarction
3.Neoplasms：Glioma、Meningioma、Pituitary adenoma
4.Disease of the head and neck： Nasopharyngeal carcinoma
glioblastoma multiforme、inflammation et al. – Gyrus-like enhancement：cerebral infaction et al.
• Degree
– Remarkable enhancement、moderate enhancement、slight enhancement、no enhancement
edema et al.
– Mixed dense: craniopharyngioma, high-grade glioma,
影像学发展简介英文
影像学发展简介英文Introduction to the Development of RadiologyRadiology is a branch of medicine that utilizes various imaging techniques to diagnose and treat diseases. It plays a crucial role in modern healthcare by providing detailed insights into the internal structures of the human body. The field of radiology has seen significant advancements over the years, with the development of new imaging technologies and techniques. In this article, we will provide a brief overview of the development of radiology.Early HistoryThe history of radiology dates back to the late 19th century when Wilhelm Conrad Roentgen discovered X-rays in 1895. Roentgen's discovery revolutionized the field of medicine by allowing doctors to see inside the body without invasive procedures. X-rays quickly became a valuable tool for diagnosing fractures, tumors, and other internal injuries.Advancements in Imaging TechnologiesOver the years, radiology has witnessed significant advancements in imaging technologies. The development of computed tomography (CT) in the 1970s revolutionized medical imaging by providing detailed cross-sectional images of the body. Magnetic resonance imaging (MRI), another groundbreaking technology, uses powerful magnets and radio waves to produce detailed images of soft tissues, such as the brain and spinal cord.In recent years, the field of radiology has seen the emergence of digital radiography and picture archiving and communication systems (PACS). Digital radiography allows for the capture of high-quality images that can be quickly transmitted and viewed on computer screens. PACS enables healthcare providers to store, retrieve, and distribute medical images electronically, improving workflow efficiency and patient care.Interventional RadiologyInterventional radiology is a subspecialty of radiology that uses imaging guidance to perform minimally invasive procedures. This technique allows for the treatment of various conditions, such as blocked arteries, tumors, and internal bleeding, without the need for open surgery. Interventional radiology procedures are often faster, safer, and less expensive than traditional surgical techniques.Future DirectionsThe field of radiology continues to evolve with ongoing technological advancements. Artificial intelligence (AI) is poised to revolutionize radiology by improving diagnostic accuracy and workflow efficiency. AI algorithms can analyze medical images rapidly and assist radiologists in detecting subtle abnormalities that may be missed by the human eye. Additionally, 3D printing technology is being used to create patient-specific anatomical models for surgical planning and medical education.ConclusionRadiology has undergone significant advancements since its inception, with the development of new imaging technologies and techniques. From thediscovery of X-rays to the emergence of digital radiography and AI, radiology continues to play a vital role in modern healthcare. The future of radiology looks promising, with continued innovations driving improvements in diagnostic accuracy, patient care, and treatment outcomes.。
医学影像学英语
医学影像学英语Medical Imaging in EnglishMedical imaging is a crucial aspect of modern healthcare, providing valuable insights into the internal structures of the human body. In this article, we will explore the important role that medical imaging plays in the diagnosis and treatment of various medical conditions, as well as key terminologies and concepts related to the field.Types of Medical ImagingThere are several different modalities of medical imaging, each utilizing different technologies to produce images of the body. Some of the most common types of medical imaging include:1. X-ray: X-rays use electromagnetic radiation to create images of the bones and other dense structures within the body. They are commonly used to diagnose fractures, infections, and other conditions.2. Computed Tomography (CT): CT scans use a combination of X-rays and computer technology to create detailed cross-sectional images of the body. They are particularly useful for detecting internal injuries and tumors.3. Magnetic Resonance Imaging (MRI): MRI scans use a magnetic field and radio waves to generate detailed images of the body's soft tissues, such as muscles and organs. They are commonly used to diagnose conditions affecting the brain, spine, and joints.4. Ultrasound: Ultrasounds use high-frequency sound waves to create real-time images of the body's internal structures. They are often used tomonitor fetal development during pregnancy and to diagnose conditions affecting the abdomen and heart.Key Terminologies in Medical ImagingIn order to better understand medical imaging reports and discussions, it is important to be familiar with key terminologies commonly used in the field. Some essential terms include:1. Radiologist: A physician specially trained to interpret medical imaging studies and diagnose medical conditions based on the images.2. Contrast Agent: A substance that is injected into the body to enhance the visibility of certain structures on medical imaging studies.3. Radiopaque: A term used to describe substances that block X-rays and appear white on imaging studies, such as bone.4. Radiolucent: A term used to describe substances that do not block X-rays and appear dark on imaging studies, such as air.5. Tumor: An abnormal growth of tissue that may be benign (non-cancerous) or malignant (cancerous).Importance of Medical Imaging in HealthcareMedical imaging plays a crucial role in the diagnosis and treatment of a wide range of medical conditions. By providing detailed images of the body's internal structures, medical imaging allows healthcare providers to accurately diagnose and monitor conditions such as:- Fractures and other bone injuries- Tumors and other abnormalities in the body- Heart disease and other cardiovascular conditions- Brain injuries and neurological disorders- Abdominal conditions such as appendicitis and gallstonesIn addition to diagnosis, medical imaging is also used to guide surgical procedures, monitor the progress of treatments, and screen for early signs of disease. As technology continues to advance, medical imaging techniques are becoming increasingly sophisticated, offering more precise and detailed images than ever before.ConclusionIn conclusion, medical imaging is an essential tool in modern healthcare, providing valuable information that helps healthcare providers diagnose and treat a wide range of medical conditions. By understanding key terminologies and concepts related to medical imaging, patients and healthcare professionals can better communicate and collaborate to achieve optimal health outcomes. As technology continues to advance, the field of medical imaging will undoubtedly play an increasingly important role in the future of healthcare.。
医学影像学英文课件
医学影像学英文课件Medical Imaging Course Slides1. Introduction to Medical ImagingMedical imaging is a broad field that encompasses various techniques used to visualize the internalstructures and functions of the human body. These techniques play a crucial role in the diagnosis, treatment, and monitoring of various medical conditions. The most commonly used medical imaging modalities include X-ray, computed tomography (CT), magnetic resonance imaging (MRI), ultrasound, and nuclear imaging.医学影像学是一个广泛的领域,包括各种用于可视化人体内部结构和功能的技术。
这些技术在诊断、治疗和监测各种医疗状况中发挥着关键作用。
最常用的医学影像模态包括X射线、计算机断层扫描(CT)、磁共振成像(MRI)、超声波和核医学成像。
2. X-ray ImagingX-ray imaging is one of the oldest and most widely used medical imaging techniques. It utilizes high-energy electromagnetic radiation to create images of the body's internal structures. X-rays are able to pass through thebody, and the degree of absorption by different tissues is used to create the image. This technique is particularly useful for visualizing bones, joints, and the chest cavity.X射线成像是最古老和最广泛使用的医学影像技术之一。
《医学影像学教学课件》-基础篇
CT Imaging
详细解析计算机断层成像的原理、参数和解剖学应用。
MRI Imaging
深入介绍磁共振成像的原理、成像序列和解剖ng
探索超声成像的原理、技术和解剖学应用。
Nuclear Medicine Imaging
研究PET和SPECT等核医学成像技术及其在临床中的应用。
《医学影像学教学课件》 -基础篇
医学影像学是研究使用不同成像技术观察人体内部结构和功能的学科。本课 程将涵盖医学影像学的基本概念、不同成像技术的原理和临床应用。
Introduction to Medical Imaging
了解医学影像学的定义、历史、发展和重要性。
Imaging Modalities
介绍不同的医学成像技术，包括X射线、CT、MRI、超声、PET和SPECT。
Radiographic Anatomy
了解骨骼系统、器官、血管、组织等放射解剖学知识。
Imaging Physics
讲解医学成像的物理原理，包括辐射、电磁学和声学。
Radiography Techniques
介绍数字X射线、乳腺X射线、透视等放射学技术。
Oncological Imaging
深入研究肿瘤成像的CT、MRI、PET和SPECT等技术。
Radiation Dosage and Safety
详细讨论医学影像中的放射剂量和安全问题。
Image Processing
介绍医学图像处理的方法，包括滤波、压缩、分割和配准。
PACS and DICOM
讲解PACS（影像存储与通信系统）和DICOM（数字成像和通信）标准在医学 影像学中的应用。
研究神经影像学中的CT、MRI、fMRI、PET和SPECT等技术应用。
医学影像学英文课件：肝胆胰影像
Anatomy of pancreas
Acute pancreatitis
Leading causes of acute pancreatitis: biliary stones > alcohol abuse > Post-ERCP
Image findings: 1. Enlargement/swelling of the pancreas 2. Inflammation of the fat (“dirty fat”) 3. Fluid collection 4. Necrosis (require contrast enhancement study)
Simple cyst Cavernous hemangioma Hepatocellular carcinoma
• Bile system
Gallstone Introduction of MRCP
• Pancreas
Pancreatitis Pancreatic head cancer
Positive: barium (GI/BE), iodine based (CT), gadolinium (MR) Negative: air Neutral: water
Iodine-based contrast media
contrast media
Injector 造影剂高压注射器 Injection of contrast media
phase washout – 快进快出 • Enhancement of the pseudocapsule in late phase
HCC (Hepatocellular carcinoma)
HCC: typical CT findings
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Central Nervous System
Imaging methods
Introduction to basics of X-ray, CT and MRI imaging
Introduction to advance imaging modalities such as diffusion,
➢ Magnetic resonance imaging(MRI)
➢ MRI ➢ Contrast MRI ➢ MRA ➢ Functional MRI
➢ MR diffusion ➢ MR perfusion ➢ MRS(spectroscopy) ➢ function
imaging(Bold,DTI)
Introduction to Neuroradiology
上海交通大学医学院 附属仁济医院放射科
Objectives:
CNS Spinal cord Head and neck(The orbit, Ear, Nose,
Paranasal Sinuses, Throat and Neck)
上海交通大学医学院 附属仁济医院放射科
Post contrast scan ： scan after the IV injection of contrast media.
CTA artery reconstruction CT perfusion：to see the perfusion and
the micro circulation in the brain.
enhancement： homogeneous/heterogeneous/ring/none
ventricular system：edema/mass effect/encephalatrophy/hydrocephalus
skull： intracranial/extracranial
上海交通大学医学院 附属仁济医院放射科
上海交通大学医学院 11附属仁济医院m(frontal/occipital/ parietal/temporal lobe)
➢cerebellum
上海交通大学医学院 附属仁济医院放射科
contrast CT
上海交通大学医学院 附属仁济医院放射科
CTA
上海交通大学医学院 附属仁济医院放射科
CT
DSA
X-ray
MRI
上海交通大学医学院 附属仁济医院放射科
skull radiography: head injury/foreign bodies standard views: lateral; postero-anterior
上海交通大学医学院 附属仁济医院放射科
coronal/lambdoidal suture
sella turcica
上海交通大学医学院 附属仁济医院放射科
DSA
Internal carotid system Vertebrobasilar system
considered to be the golden standard of the
perfusion, MRA, MRV(venography), MR spectroscopy and
functional imaging
Normal findings
density/signal changes: iso/high/low/mixed
enhancement: homogeneous/heterogeneous/ring/none
上海交通大学医学院 附属仁济医院放射科
CT 3D reconstruction
上海交通大学医学院 1附5 属仁济医院放射科
CT perfusion
CBV、CBF、MTT、PS
上海交通大学医学院 附属仁济医院放射科
signs on CT and MRI scanning:
density/signal changes: high/low/iso/mixed
Imaging techniques
➢ Plain radiography(X-ray)
➢ Plain film ➢ Digital subtraction
agiography(DSA)
➢ Computed tomography scanning(CT)
➢ No contrast CT ➢ Contrast CT ➢ CTA ➢ CT perfusion
cerebrovascular imaging
上海交通大学医学院 附属仁济医院放射科
Indications for X-ray exam:
evaluation of penetrating injury location of foreign bodies evaluate for presence of depressed bone
fragments evaluation of pituitary fossa
上海交通大学医学院 附属仁济医院放射科
Techniques for CT scanning
None contrast scan：transverse/axial ,scan begin from the canthmeatal line (CML), up to the top of the head, 8-10 mm thickness
CT scanning of the head is typically used to detect:
trauma: bleeding, brain injury and skull fractures
vascular lesions: a blood clot or bleeding after a stroke.
ventricular system
Diagnosis of common disease
Basic overview of hemorrhage, stroke, vascular malformation
and intracranial tumors.
上海交通大学医学院
附属仁济医院放射科
上海交通大学医学院 附属仁济医院放射科