智慧树知到《MedicalImaging（南方医科大学）》期末考试答案

智慧树知到《MedicalImaging（南方医科大学）》章节测试答案
第一章单元测试
1、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
正确答案：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
正确答案：All other options
3、Lung carcinoma differs distinctly from pulmonary tuberculosis on CT. （）
A.True
B.False
正确答案：False
4、CT is better than MRI in the evaluation of meniscus injuries. （）
A.True
B.False
正确答案：False
5、On T2WI， the cerebrospinal fluid has a long T2 time and shows hypo-intensity. （）
A.True
B.False
正确答案：False
第二章单元测试
1、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
正确答案：Timely diagnosis should be made on the basis of one chest radiograph
2、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.
正确答案：Severe and sudden chest pain and back pain.
3、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
正确答案：Pneumothorax
4、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
正确答案：Central type lung cancer in the upper right lung
5、Bronchopneumonia commonly affects （）
A.Bilateral upper lobes
B.Bilateral lower lobes
C.Right middle lobe
D.Bilateral apex of lung
E.Left lingual lobe
正确答案：Bilateral lower lobes
6、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.
正确答案：Mild stenosis refers to 25%~50% luminal diameter stenosis
7、The air-crescent sign is a specific sign for semi-invasive and invasive aspergillosis. （）
A.True
B.False
正确答案：True
8、Pleural effusion is a nonspecific sign for the differential diagnosis of lung diseases. （）
A.True
B.False
正确答案：True
9、Primary tuberculosis syndrome is commonly found in the young adults. （）
A.True
B.False
正确答案：False
10、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
正确答案：False
第三章单元测试
1、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
正确答案：Synovium
2、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
正确答案：Osteolytic osteosarcoma
3、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
正确答案：The soft tissue around the fracture site often swells significantly.
4、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
正确答案：Most of them are female
5、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
正确答案：True
6、Adult spinal tuberculosis is most common with thoracic tuberculosis， followed by lumbar tuberculosis. （）
A.True
B.False
正确答案：False
7、When meniscal injury is suspected， the most valuable imaging modality is MRI.（）
A.True
B.False
正确答案：True
第四章单元测试
1、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
正确答案：Cancer involves the muscular layer
2、The preferred imaging method for pancreatic cancer is （）.
A.Unenhanced and dynamic contrast-enhanced CT scan
B.PET
C.MRCP
D.DSA
E.Ultrasound
正确答案：Unenhanced and dynamic contrast-enhanced CT scan
3、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
正确答案：CT can show a ring on the borders of the mass and small gas-bubbles inside
4、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
正确答案：Calcification of pancreas and pancreatic duct
5、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
正确答案：A single nodule with a diameter less than 20 mm is called small liver carcinoma
6、The blood supply of liver hemangioma mainly comes from the hepatic artery， and show homogeneous enhancement at the arterial phasE. （）
A.True
B.False
正确答案：False
7、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
正确答案：True
8、Ulcerative esophageal carcinoma typically shows a large and irregular niche with an irregular filling defect in the surrounding area.（）
A.True
B.False
正确答案：True
9、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
正确答案：False
10、Pneumoperitoneum on the X-ray image is the direct sign of gastrointestinal tract perforation. （）
A.True
B.False
正确答案：False
第五章单元测试
1、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
正确答案：There was no significant enhancement of the tumor at contrast-enhanced scan
2、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
正确答案：Renal carcinoma
3、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
正确答案：Lumps with smooth edges and transparent halo
4、Negative stones of urinary system can be found on plain X-ray examination. （）
A.True
B.False
正确答案：False
5、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
正确答案：False
6、CT is the preferred imaging modality for the prostate tumors. （）
A.True
B.False
正确答案：False
第六章单元测试
1、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
正确答案：Exophthalmatic goiter
2、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
正确答案：Lobular shape is a typical manifestation of malignant tumor
3、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
正确答案：Low density of tumor
4、Nasopharyngeal cancer can spread along the space surrounding nerves and blood vessels， leading to the expansion or destruction of bony foramen in the skull bas
E.（）
A.True
B.False
正确答案：True
5、Inflammatory pseudotumor tends to affect the muscle tendon rather than the muscle belly. （）
A.True
B.False
正确答案：False
6、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
正确答案：True
第七章单元测试
1、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
正确答案：Brain abscess
2、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
正确答案：No contrast-enhancement
3、The most common brain tumor is （）
A.Meningioma
B.Astrocytoma
C.Germinoma
D.Pituitary tumor
E.Craniopharyngioma
正确答案：Astrocytoma
4、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
正确答案：Willis circle and adjacent branches
5、Most grade 4 astrocytomas have significant peripheral edema. （）
A.True
B.False
正确答案：True
6、In the subacute stage， hematoma is hyper-intense both on T1WI and on T2WI. （）
A.True
B.False
正确答案：True
7、Acute epidural hematoma shows crescent-shaped high-density beneath the cranial bone on CT.（）
A.True
B.False
正确答案：False
8、CT is more sensitive than MRI in detecting acute subarachnoid hemorrhagE.（）
A.True
B.False
正确答案：True