医学影像学英文课件：The system of digestion
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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。
医学影像学专业英语Digestive system(2)
x-ray
barium swallow: revealing the mucosae of middle and lower oesophagus
erect: used for middle and late stage of oesophageal varices
supine/prone：beneficial for early stage of oesophageal varices
gastric peptic ulcer
direct appearance: niche
acute period:
Hampton’s line: result from the edema of mucosa around the entrance of the niche
width: 1~2mm, smooth, transparent line
narrow neck sign: the entrance of niche is narrow.
collar sign
narrow neck sign
edema of mucosa
gastric peptic ulcer
direct appearance: niche
chronic period: converging of mucous folds
esophageal varices
early stage ：
mucosae of distal esophagus are thickening, circuitousபைடு நூலகம்
the wall is like saw-tooth contraction and relaxation is normal, barium is swallowed
barium swallow: revealing the mucosae of middle and lower oesophagus
erect: used for middle and late stage of oesophageal varices
supine/prone：beneficial for early stage of oesophageal varices
gastric peptic ulcer
direct appearance: niche
acute period:
Hampton’s line: result from the edema of mucosa around the entrance of the niche
width: 1~2mm, smooth, transparent line
narrow neck sign: the entrance of niche is narrow.
collar sign
narrow neck sign
edema of mucosa
gastric peptic ulcer
direct appearance: niche
chronic period: converging of mucous folds
esophageal varices
early stage ：
mucosae of distal esophagus are thickening, circuitousபைடு நூலகம்
the wall is like saw-tooth contraction and relaxation is normal, barium is swallowed
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
24
Scan Range = 300mm
30s
15s
10mm P1 10 mm/s
10mm P2 20 mm/s
Cover the same volumeCinT成sh像ort原er理ti介me绍w英ith extended Pitch
Less images createCdT成像原理介绍英
文版医学知识讲In解crement
18
Deep Inspiration
Shallow Inspiration
Standard CT / Slice Imaging
医学影像学专业英语Digestive system(4)
Digestive system
oesophageal varices: mainly caused by cirrhosis of the liver
x-ray appearances
Mucosa abnormality :Thickening, circuitous and disturbance.
Filling defects :longitudinal serpiginous.
Dividing line : not clear.
Contraction and relaxation is not enough good, barium is swallowed slowly.
Tension is lower.
x-ray appearances
Mucosa abnormality :Thickening, circuitous and disturbance.
Filling defects :longitudinal serpiginous.
Dividing line : not clear.
Contraction and relaxation is not enough good, barium is swallowed slowly.
– mucosa:destruction, discontinue or disappear
– filling defect – relaxation is limited, wriggling is weakening or disappeared. – lumens: stenosis, enlargement. – dividing line : clear
• Carcinoma of oesophagus and gastric fundus
oesophageal varices: mainly caused by cirrhosis of the liver
x-ray appearances
Mucosa abnormality :Thickening, circuitous and disturbance.
Filling defects :longitudinal serpiginous.
Dividing line : not clear.
Contraction and relaxation is not enough good, barium is swallowed slowly.
Tension is lower.
x-ray appearances
Mucosa abnormality :Thickening, circuitous and disturbance.
Filling defects :longitudinal serpiginous.
Dividing line : not clear.
Contraction and relaxation is not enough good, barium is swallowed slowly.
– mucosa:destruction, discontinue or disappear
– filling defect – relaxation is limited, wriggling is weakening or disappeared. – lumens: stenosis, enlargement. – dividing line : clear
• Carcinoma of oesophagus and gastric fundus
《医学影像识别课件》
1 Principles of MRI
Understand the physics behind magnetic resonance imaging and how it creates detailed anatomical images.
2 MRI vs CT
Compare the advantages and limitations of MRI and CT scans in different clinical scenarios.
Principles of Medical Imaging
Understand the fundamental principles of medical image acquisition and interpretation.
History of Medical Imaging
Trace the evolution of medical imaging techniques from X-rays to modern advancements.
Women's Imaging
Screening and diagnosis of breast and gynecological conditions, including mammography and ultrasound.
Future Trends in Medical Imaging Technology
Image Processing and Analysis
Discover the role of image processing and analysis in enhancing medical images and extracting valuable diagnostic information.
医学英语消化系统图文解说
pancreas are called accessory digestive glands?
Text Study——Part 1
1. What are other terms for digestive tract?
Digestive tract is also termed as gastrointestinal tract, alimentary canal or gut(消化道).
They are also known as accessory organs, because they are not part of the digestive tract, yet have a role in digestive activities.
Unit Two
The Digestive System
Objectives
In this unit, we are going to learn to:
1. Grasp some medical terms related to digestive system.
2. Describe the function of the digestive system, and differentiate between organs of the alimentary canal and accessory digestive organs；
Text Study——Part 1——Translation
There are many people who are waiting to be admitted to the hospital ward.
许多人在等着入院。
Fat-soluble vitamins, which include vitamins A,D,E, and K, are usually absorbed with the help of foods that contain fat.
Text Study——Part 1
1. What are other terms for digestive tract?
Digestive tract is also termed as gastrointestinal tract, alimentary canal or gut(消化道).
They are also known as accessory organs, because they are not part of the digestive tract, yet have a role in digestive activities.
Unit Two
The Digestive System
Objectives
In this unit, we are going to learn to:
1. Grasp some medical terms related to digestive system.
2. Describe the function of the digestive system, and differentiate between organs of the alimentary canal and accessory digestive organs；
Text Study——Part 1——Translation
There are many people who are waiting to be admitted to the hospital ward.
许多人在等着入院。
Fat-soluble vitamins, which include vitamins A,D,E, and K, are usually absorbed with the help of foods that contain fat.
医学影像学专业英语Digestive system(2)
2.appear as a plaque-like lesion along one wall of the oesophagus which is frequently ulcerated, or an area of granular, flat mucosa with irregular wall.
contrast enhanced varices.
carcinoma of oesophagus
carcinoma of oesophagus
Clinical manifestations
1.carcinoma of esophagus is a malignant tumor arising from the oesophagus , most in over 40 years old.
is swallowed slowly
esophageal varices
Late stage (serious)
involving the whole esophagus mucosae is displaced of filling defects which sizes are
different wriggling is weak, barium is swallowed slowly
Oesophageal varices
CT at mid-chest level
demonstrates multiple tubular and rounded contrast enhanced structures surrounding the oesophagus and representing perioesophageal varices (large arrows). Enhancement of the thickened oesophageal wall (small arrow) is due to enlarged submucosal
contrast enhanced varices.
carcinoma of oesophagus
carcinoma of oesophagus
Clinical manifestations
1.carcinoma of esophagus is a malignant tumor arising from the oesophagus , most in over 40 years old.
is swallowed slowly
esophageal varices
Late stage (serious)
involving the whole esophagus mucosae is displaced of filling defects which sizes are
different wriggling is weak, barium is swallowed slowly
Oesophageal varices
CT at mid-chest level
demonstrates multiple tubular and rounded contrast enhanced structures surrounding the oesophagus and representing perioesophageal varices (large arrows). Enhancement of the thickened oesophageal wall (small arrow) is due to enlarged submucosal
医学影像读片双语ppt课件
8
9
• Question :No.2 • Brain MR images demonstrate which of the following? (Check all that apply) 正确选项：A.D 颅脑 MR图像的表现包括下列那种？（选择全部正确选项） A.Sphenoid sinus opacification 蝶窦浑浊 B.Internal carotid artery occlusion颈内动脉闭塞 C.Normal pattern of sphenoid sinus mucosal enhancement 蝶窦粘膜正常强化 D.Unilateral cavernous sinus expansion单侧海绵的膨胀
A. Orbital apex involvement 眶尖部侵犯
B. Osseous
C. Mastoid air
sclerosis 骨质硬化
cell destruction 乳突气房破坏 蝶窦皮质破坏
6
D. Sphenoid sinuscortical disruption
• 注释： • The lesioninvolves the lateral wall of the sphenoid sinus extending into the rightorbital apex, as demonstrated by loss of normal fat attenuation in thislocation. • 此病变累及蝶窦外侧壁，侵入右侧眶尖，表现为此处正常脂肪消失。 • The walls of thebilateral sphenoid sinuses are thickened and sclerotic, as is the intersphenoidalseptum. The sphenoid sinus is opacified. • 双侧蝶窦壁及间隔增厚、硬化，蝶窦浑浊。
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Please answer the questions according to the figures: 1. Please describe the figures in ultrasonic term? 2. What is your diagnosis about the patient? 3. What differential diagnoses should you think about?
Case 5
Describe sonographic appearances of diffuse hepatic lesions.
Case 6
A 63 year-old man found a renal lesion in health examination. Physical exam: no positive signs.
Early stage： (inflammatory , no abscess) • Hypoechoic • Irregular border • Abundant CDFI
The ultrasound appearance of an abscess may be variable depending on the internal consistency of the mass.
Liver abscess
Liquefied stage：(abscess lumen)
Complex: with some debris and irregular walls.
Absorbent stage
Hypoechoic area
Liver metastases
The following three specific patterns have been described: ➢ A Well-defined hypoechoic mass. ➢ A Well-defined hyperechoic mass. ➢ Diffuse distortion of the normal homogeneous
Polycystic liver
Polycystic renal
Polycystic spleen
Of patients with polycystic liver disease, 60% have associated polycystic renal disease.
Liver abscess
parenchymal Pattern without a focal mass.
Metastatic disease appear as well-defined hyperechoic lesions throughout the liver.
Multiple hypoechoic solid nodules with clear margin bull's-eye configuration ( halo)
WES （ Wall-echo-shadow ）Sign
When the gallbladder is completely packed full of stones, the sonographer will only be able to image the stones casting a distinct acoustic shadow known as the wall echo shadow (WES) sign.
Case 3
According to the characteristics of ultrasonic imaging, what kind of diagnosiive the reasons?
Case 4
a
b
cC
d
Describe sonographic appearances of cystic, complex and solid hepatic lesions.
The system of digestion
● Spleen
Normal Anatomy
Location: left hypochondriac region Shape: bean Length:8-12cm;width:3-4cm; The echo intensity is usually slightly less than that of the liver.
The system of digestion
Polycystic liver disease
The cysts are small, under 2 to 3 cm, and multiple throughout the hepatic parenchyma. On ultrasound examination the cyst generally present as anechoic, well-defined borders with acoustic enhancement.
Metastatic disease appears as diffuse hypoechoic lesions with unclear margin.
The system of digestion
● Gallbladder
Gallstones may take several different shapes and size.
Cyst
Hemangioma
Hyperechoic/ mixed echoic lesion Clear margin
Lymphoma
Splenomegaly
Case analysis
Case 1
A 61 years old man. The history of pancreatic tumor surgery. What kind of diagnosis may be made for and please give the reasons?
Case 2
A 56 year-old man found a liver lesion during his routine health examination. What kind of diagnosis may be made for and please give the reasons?
Case 5
Describe sonographic appearances of diffuse hepatic lesions.
Case 6
A 63 year-old man found a renal lesion in health examination. Physical exam: no positive signs.
Early stage： (inflammatory , no abscess) • Hypoechoic • Irregular border • Abundant CDFI
The ultrasound appearance of an abscess may be variable depending on the internal consistency of the mass.
Liver abscess
Liquefied stage：(abscess lumen)
Complex: with some debris and irregular walls.
Absorbent stage
Hypoechoic area
Liver metastases
The following three specific patterns have been described: ➢ A Well-defined hypoechoic mass. ➢ A Well-defined hyperechoic mass. ➢ Diffuse distortion of the normal homogeneous
Polycystic liver
Polycystic renal
Polycystic spleen
Of patients with polycystic liver disease, 60% have associated polycystic renal disease.
Liver abscess
parenchymal Pattern without a focal mass.
Metastatic disease appear as well-defined hyperechoic lesions throughout the liver.
Multiple hypoechoic solid nodules with clear margin bull's-eye configuration ( halo)
WES （ Wall-echo-shadow ）Sign
When the gallbladder is completely packed full of stones, the sonographer will only be able to image the stones casting a distinct acoustic shadow known as the wall echo shadow (WES) sign.
Case 3
According to the characteristics of ultrasonic imaging, what kind of diagnosiive the reasons?
Case 4
a
b
cC
d
Describe sonographic appearances of cystic, complex and solid hepatic lesions.
The system of digestion
● Spleen
Normal Anatomy
Location: left hypochondriac region Shape: bean Length:8-12cm;width:3-4cm; The echo intensity is usually slightly less than that of the liver.
The system of digestion
Polycystic liver disease
The cysts are small, under 2 to 3 cm, and multiple throughout the hepatic parenchyma. On ultrasound examination the cyst generally present as anechoic, well-defined borders with acoustic enhancement.
Metastatic disease appears as diffuse hypoechoic lesions with unclear margin.
The system of digestion
● Gallbladder
Gallstones may take several different shapes and size.
Cyst
Hemangioma
Hyperechoic/ mixed echoic lesion Clear margin
Lymphoma
Splenomegaly
Case analysis
Case 1
A 61 years old man. The history of pancreatic tumor surgery. What kind of diagnosis may be made for and please give the reasons?
Case 2
A 56 year-old man found a liver lesion during his routine health examination. What kind of diagnosis may be made for and please give the reasons?