Medical Imaging（南方医科大学）智慧树知到章节测试答案

第一章 单元测试
1、 问题: In addition to the tissue density, which of the following also affects X-ray image contrast? （ ）
A:The shape of the tissue
B:The thickness of the tissue
C:The location of the tissue
D:Structure around the tissue
E:The activity of tissue
答案: 【
The thickness of the tissue
】

2、 The basic principle of medical imaging diagnosis is （ ）

A:Be familiar with the normal imaging findings
B:To identify the abnormal imaging findings
C:Analysis and conclusion
D:Integrated diagnosis
E:All other options
答案: 【
All other options
】

3、 问题: Lung carcinoma differs distinctly from pulmonary tuberculosis on CT. （ ）
A:True
B:False
答案: 【
False
】

4、 问题: CT is better than MRI in the evaluation of meniscus injuries. （ ）
A:True
B:False
答案: 【
False
】

5、 问题: On T2WI, the cerebrospinal fluid has a long T2 time and shows hypo-intensity. （ ）
A:True
B:False
答案: 【
False
】

第二章 单元测试
1、 问题: Which of the following statement is true about the X-ray diagnosis of tension pneumothorax? （ ）
A:The diagnosis can be made if air is found in the pleural cavity
B:The diagnosis can be made when air and fluid in the pleural cavity are found
C:Timely diagnosis should be made on the basis of one chest radiograph
D:The diagnosis should be made according to the dynamic changes of chest radiograph and clinical symptoms
E:Lun compression of more than 80% is strongly indicative of tension pneumothorax
答案: 【
Timely diagnosis should be made on the basis of one chest radiograph
】

2、 问题:What’s the most typical symptom of acute aortic dissection? （ ）
A:Palpitation, polypnea.
B:The asymmetry between blood pressure and pulse.
C:Severe and sudden chest pain and back pain.
D:Cerebral vascular accident and paralysis.
E:Tachycardia and dropped blood pressure.
答案: 【
Severe and sudden chest pain and back pain.
】

3、 问题: Generally speaking, which of the following diseases does not cause lung consolidation? （ ）
A:Pulmonary tuberculosis
B:Pulmonary edema
C:Pneumothorax
D:Alveolar carcinoma
E:Pneumonia
答案: 【
Pneumothorax
】

4、 问题: A 65-year-old male patient, with his chest CT scan showing a lobular soft tissue mass near the right hilum of the lung, accompanied by right upper lung atelectasis and enlarged lymph nodes in the mediastinum. The most likely diagnosis is? （ ）
A:Central type lung cancer in the upper right lung
B:Peripheral type lung cancer
C:Right upper lobe pneumonia
D:Pulmonary tuberculosis
E:Malignant tumor in the right mediastinum
答案: 【
Central type lung cancer in the upper right lung
】

5、 问题: Bronchopneumonia commonly affects （ ）
A:Bilateral upper lobes
B:Bilateral lower lobes
C:Right middle lobe
D:Bilateral apex of lung
E:Left lingual lobe
答案: 【
Bilateral lower lobes
】

6、 问题: Which of the following statements is NOT true regarding CTA of the coronary artery? （ ）
A:Minimal stenosis refers to 1%~24% luminal diameter stenosis
B:Mild stenosis refers to 25%~50% luminal diameter stenosis
C:Moderate stenosis refers to 50%~69% luminal diameter stenosis
D:Severe stenosis refers to 70%~99% luminal diameter stenosis
E:Left main coronary artery showing the luminal diameter stenosis ＞50% belongs to severe stenosis.
答案: 【
Mild stenosis refers to 25%~50% luminal diameter stenosis
】

7、 问题:The air-crescent sign is a specific sign for semi-invasive and invasive aspergillosis. （ ）
A:True
B:False
答案: 【
True
】

8、 问题:Pleural effusion is a nonspecific sign for the differential diagnosis of lung diseases. （ ）
A:True
B:False
答案: 【
True
】

9、 问题:Primary tuberculosis syndrome is commonly found in the young adults. （ ）
A:True
B:False
答案: 【
False
】

10、 问题:Multi-slice spiral CT scanning has a high speed, thus there is no need to use electrocardiogram gating technique for the CT angiography of coronary artery. （ ）
A:True
B:False
答案: 【
False
】

第三章 单元测试
1、 问题: In the early stage of rheumatoid arthritis, which of the following tissues is mainly involved? （ ）
A:Articular cartilage
B:Bone tissue
C:Articular ligament
D:Synovium
E:Adjacent skeletal muscles
答案: 【
Synovium
】
2、 问题: The plain film shows lateral bone destruction at the lower end of the femur, presenting with mouth-eaten and triangle periosteal and soft tissue masses. The most likely diagnosis is （ ）:
A:Giant cell tumor of bone
B:Chondrosarcoma
C:Osteolytic osteosarcoma
D:Fibrosarcoma
E:Myeloma
答案: 【
Osteolytic osteosarcoma
】

3、 问题: Which of the following descriptions is NOT true about old fractures? （ ）
A:The soft tissue around the fracture site often swells significantly.
B:The fracture line is blurred.
C:There may be osteoporosis in the adjacent bone.
D:Bone callus is present.
E:X-ray shows a large amount of callus formation at the fracture site and bone trabeculae crossing both ends of the fracture
答案: 【
The soft tissue around the fracture site often swells significantly.
】

4、 问题: The wrong description about ankylosing spondylitis is （ ）
A:The highest incidence rate is around 20 years old
B:Most of them are female
C:Generally the sacroiliac joint is affected firstly
D:HLA-B27 is mostly positive
E:Bamboo-shaped spine can be formed in the late stage
答案: 【
Most of them are female
】

5、 问题: The major difference between spinal tuberculosis and spinal metastases is that the former is more likely to cause narrowing of adjacent intervertebral spaces. （ ）
A:True
B:False
答案: 【
True
】

6、 问题: Adult spinal tuberculosis is most common with thoracic tuberculosis, followed by lumbar tuberculosis. （ ）
A:True
B:False
答案: 【
False
】

7、 问题: When meniscal injury is suspected, the most valuable imaging modality is MRI.（ ）
A:True
B:False
答案: 【
True
】

第四章 单元测试
1、 问题: Which of following descriptions about early gastric carcinoma is NOT true? （ ）
A:Cancer is confined to the mucous layer
B:Cancer is confined to the submucosa layer
C:Cancer involves the muscular layer
D:Cancer involves the submucosa, elevation of mucous layer less than 5mm
E:Cancer involves the submucosa, causing invagination less than 5mm
答案: 【
Cancer involves the muscular layer
】

2、 问题: The preferred imaging method for pancreatic cancer is （ ）.
A:Unenhanced and dynamic contrast-enhanced CT scan
B:PET
C:MRCP
D:DSA
E:Ultrasound
答案: 【
Unenhanced and dynamic contrast-enhanced CT scan
】

3、 问题: Which of the following imaging findings is the most characteristic for hepatic abscesses? （ ）
A:CT showed a low-density mass in hepatic parenchyma
B:Hepatic parenchymal mass showed hypointensity on T1WI and hyperintensity on T2WI
C:CT can show a ring on the borders of the mass and small gas-bubbles inside
D:The margin of the mass was significantly enhanced on contrast-enhancement scan
E:Multiple masses
答案: 【
CT can show a ring on the borders of the mass and small gas-bubbles inside
】

4、 问题: Which of the following CT findings is Not consistent with acute pancreatitis? （ ）
A:Pancreas enlargement
B:Gerota’s fascia thickening
C:Cellulitis and pseudocyst formation
D:Calcification of pancreas and pancreatic duct
E:Associated with abscess and bleeding
答案: 【
Calcification of pancreas and pancreatic duct
】

5、 问题: Which description is NOT true for hepatocellular carcinoma? （ ）
A:The incidence is closely related to hepatitis B and cirrhosis
B:The incidence is closely related to hepatitis C and cirrhosis
C:A single nodule with a diameter less than 20 mm is called small liver carcinoma
D:Massive type is the most common type and diffuse type is the least type
E:Tumors generally exhibit expansive growth and can form a pseudocapsule
答案: 【
A single nodule with a diameter less than 20 mm is called small liver carcinoma
】

6、 问题: The blood supply of liver hemangioma mainly comes from the hepatic artery, and show homogeneous enhancement at the arterial phase. （ ）
A:True
B:False
答案: 【
False
】

7、 问题: The esophagus is a muscular tube connecting the lower pharynx with the stomach. It is connected to the lower pharynx at the level of the 6th cervical vertebra. （ ）
A:True
B:False
答案: 【
True
】

8、 问题: Ulcerative esophageal carcinoma typically shows a large and irregular niche with an irregular filling defect in the surrounding area.（ ）
A:True
B:False
答案: 【
True
】

9、 问题: Barium X-ray examination is the main examination method for gastrointestinal diseases, which can better show the location, outline, mucosal folds and internal structure of gastrointestinal tumors. （ ）
A:True
B:False
答案: 【
False
】

10、 问题: Pneumoperitoneum on the X-ray image is the direct sign of gastrointestinal tract perforation. （ ）
A:True
B:False
答案: 【
False
】

第五章 单元测试
1、 问题: Which of the following descriptions is Not true about ovarian cancer? （ ）
A:Pelvic soft tissue mass with unclear boundary with uterus
B:Solid tumors showed slightly low-signal on T1WI and high-signal on T2WI
C:When there is necrosis or bleeding within the tumor, the signal intensity is uneven
D:The cystic part of ovarian cancer is often uneven in thickness, with nodules or cauliflower-like changes
E:There was no significant enhancement of the tumor at contrast-enhanced scan
答案: 【
There was no significant enhancement of the tumor at contrast-enhanced scan
】

2、 问题: A 54-year-old female patient had hematuria for more than 1 year and right low back pain 10 days ago. CT showed a mass of 60 mm×70 mm in the lower pole of the right kidney, protruding outside and with irregular low-density area in the center and obvious enhancement on the periphery at the early phase of dynamic contrast-enhanced scan. The most likely diagnosis is （ ）
A:Renal carcinoma
B:Renal angiomyolipoma
C:Renal adenoma
D:Renal abscess
E:Metastatic carcinoma of kidney
答案: 【
Renal carcinoma
】

3、 问题: Which is NOT the typical signs of breast cancer （ ）
A:Mass, burry shape
B:Clustered calcifications
C:Orange peel-like changes in skin
D:Nipple retraction
E:Lumps with smooth edges and transparent halo
答案: 【
Lumps with smooth edges and transparent halo
】

4、 问题: Negative stones of urinary system can be found on plain X-ray examination. （ ）
A:True
B:False
答案: 【
False
】

5、 问题: On MR hydrography images, ureteral stones show nodular high signal, with dilation above the obstruction site and cup-shaped filling defect. （ ）
A:True
B:False
答案: 【
False
】

6、 问题: CT is the preferred imaging modality for the prostate tumors. （ ）
A:True
B:False
答案: 【
False
】

第六章 单元测试
1、 问题: Enlargement of the extraocular muscle is most commonly seen in the diseases of （ ）.
A:Sarcoidosis
B:Acromegaly
C:Orbital cellulitis
D:Painful ophthalmoplegia
E:Exophthalmatic goiter
答案: 【
Exophthalmatic goiter
】

2、 问题: Which description is NOT TRUE for parotid mixed tumor? （ ）
A:Common parotid gland tumor
B:Soft tissue density on non-contrast CT scan
C:Homogeneous enhancement or rim-enhancement
D:Clear boundary and with capsule
E:Lobular shape is a typical manifestation of malignant tumor
答案: 【
Lobular shape is a typical manifestation of malignant tumor
】

3、 问题: Which of the following description is Not a common CT manifestation of retinoblastoma? （ ）
A:Located on the eyeball wall
B:Intracranial mass
C:Low density of tumor
D:Tumor enhancement is obvious
E:The tumor may extend outside the eyeball
答案: 【
Low density of tumor
】

4、 问题: Nasopharyngeal cancer can spread along the space surrounding nerves and blood vessels, leading to the expansion or destruction of bony foramen in the skull base. （ ）
A:True
B:False
答案: 【
True
】

5、 问题: Inflammatory pseudotumor tends to affect the muscle tendon rather than the muscle belly. （ ）
A:True
B:False
答案: 【
False
】

6、 问题: Multiple nodular goiters present as asymmetric enlargement of the thyroid gland, accompanied by degeneration, bleeding, cystic changes, necrosis, or patchy calcification. （ ）
A:True
B:False
答案: 【
True
】

第七章 单元测试
1、 问题: Which disease in the brain usually shows ring enhancement on contrast-enhanced CT images? （ ）
A:Pituitary adenoma
B:Meningioma
C:Grade 2 astrocytoma
D:Cerebral infarction
E:Brain abscess
答案: 【
Brain abscess
】

2、 问题: Which sign is inconsistent with the CT features of cerebral metastases? （ ）
A:Multiple scattered ring-shaped shadows
B:Multiple nodules
C:Obvious edema surrounding the tumor
D:Superficial location
E:No contrast-enhancement
答案: 【
No contrast-enhancement
】

3、 问题: The most common brain tumor is （ ）
A:Meningioma
B:Astrocytoma
C:Germinoma
D:Pituitary tumor
E:Craniopharyngioma
答案: 【
Astrocytoma
】

4、 问题: The most common location for intracranial aneurysms is （ ）
A:Willis circle and adjacent branches
B:Anterior cerebral artery and its branches
C:Middle cerebral artery and its branches
D:Posterior cerebral artery and its branches
E:Basilar artery and its branches
答案: 【
Willis circle and adjacent branches
】

5、 问题: Most grade 4 astrocytomas have significant peripheral edema. （ ）
A:True
B:False
答案: 【
True
】

6、 问题: In the subacute stage, hematoma is hyper-intense both on T1WI and on T2WI. （ ）
A:True
B:False
答案: 【
True
】

7、 问题: Acute epidural hematoma shows crescent-shaped high-density beneath the cranial bone on CT.（ ）
A:True
B:False
答案: 【
False
】

8、 问题: CT is more sensitive than MRI in detecting acute subarachnoid hemorrhage.（ ）
A:True
B:False
答案: 【
True
】