医学影像知识库
用通俗语言理解 CT、MRI、超声等影像方式。
推荐学习路径
按照推荐路径系统学习各种影像检查，从基础到进阶。
初学者路径
从基础开始，逐步学习先进的影像学检查
急诊快速通道
急诊情况快速评估 - 创伤、出血、骨折
癌症筛查路径
全面的癌症筛查影像学路径
心脏影像路径
全面的心血管影像学评估
了解影像术语有助于您理解扫描结果。
计算机断层扫描
CT扫描使用X射线创建身体的详细横截面图像。它们特别适用于检测骨折、肿瘤和内出血。
For soft tissue detail, consider MRI. For quick bone assessment, standard X-rays may suffice. For real-time imaging, ultrasound is an option.
数字X光
X光用于快速、低成本地检查骨骼、肺部以及管路位置。
Use CT for cross-sectional detail or MRI for soft tissue.
磁共振成像
MRI使用强大的磁体和无线电波产生器官和软组织的详细图像。非常适合大脑、脊柱和关节成像。
For faster imaging or bone detail, consider CT. For real-time imaging without radiation, ultrasound is an option. Functional MRI (fMRI) can show brain activity.
数字乳腺钼靶
低剂量X光，用于乳腺癌筛查与诊断。
Breast ultrasound or MRI can complement dense breast evaluation.
正电子发射断层显像-CT
将代谢成像与CT解剖结合，用于肿瘤分期与疗效评估。
CT or MRI may further characterize lesions; PET-MRI is an alternative in some centers.
全身骨显像
核医学检查，用于检测骨代谢、转移和隐匿骨折。
Correlate hotspots with CT/MRI; PET-CT may be used for lytic lesions.
超声成像
超声使用声波创建实时图像。通常用于妊娠监测和检查心脏、肝脏和肾脏等器官。
For more detailed imaging, CT or MRI may be recommended. Doppler ultrasound can assess blood flow. 3D/4D ultrasound provides enhanced visualization during pregnancy.
实时透视
Real-time X-ray guidance for procedures and swallowing studies.
Combine with CT/MRI/US for complementary detail.
数字减影血管造影
Catheter-based iodinated contrast angiography for vessels.
Combine with CT/MRI/US for complementary detail.
单光子发射断层
Nuclear medicine tomographic imaging of perfusion and function.
Combine with CT/MRI/US for complementary detail.
正电子+磁共振
Hybrid metabolic + soft-tissue imaging with low CT dose.
Combine with CT/MRI/US for complementary detail.
双能X线吸收
Low-dose dual-energy X-ray for bone density and body composition.
Combine with CT/MRI/US for complementary detail.
心脏CT
CT tailored for coronary and cardiac structural assessment.
Combine with CT/MRI/US for complementary detail.
心脏MRI
MRI sequences for myocardium, function, perfusion, tissue characterization.
Combine with CT/MRI/US for complementary detail.
冠状动脉CTA
无创冠状动脉CT血管造影，用于显示冠状动脉狭窄和斑块。
Combine with CT/MRI/US for complementary detail.
负荷超声心动图
Ultrasound of heart under exercise or pharmacologic stress.
Combine with CT/MRI/US for complementary detail.
超声心动图
Ultrasound assessment of cardiac structure and function.
Combine with CT/MRI/US for complementary detail.
颈动脉超声
Ultrasound with Doppler for carotid plaque and stenosis.
Combine with CT/MRI/US for complementary detail.
静脉多普勒
Ultrasound to detect DVT and venous insufficiency.
Combine with CT/MRI/US for complementary detail.
经颅多普勒
Ultrasound of intracranial flow velocities.
Combine with CT/MRI/US for complementary detail.
产科超声
Ultrasound for pregnancy dating, anatomy, and growth.
Combine with CT/MRI/US for complementary detail.
造影超声
Microbubble contrast for perfusion assessment without radiation.
Combine with CT/MRI/US for complementary detail.
剪切波弹性成像
Ultrasound-based tissue stiffness mapping.
Combine with CT/MRI/US for complementary detail.
肝脏弹性成像
Ultrasound or MR-based liver stiffness for fibrosis staging.
Combine with CT/MRI/US for complementary detail.
通气灌注扫描
Nuclear medicine ventilation-perfusion study for PE workup.
Combine with CT/MRI/US for complementary detail.
肝胆显像
Cholescintigraphy for gallbladder function and obstruction.
Combine with CT/MRI/US for complementary detail.
肾动态显像
Nuclear medicine renogram for perfusion and drainage.
Combine with CT/MRI/US for complementary detail.
胃排空显像
Scintigraphy measuring gastric emptying of solids/liquids.
Combine with CT/MRI/US for complementary detail.
钠氟骨PET
PET with NaF for high-sensitivity bone metastasis detection.
Combine with CT/MRI/US for complementary detail.
锥形束CT
Low-dose 3D dental/ENT imaging with cone-beam geometry.
Combine with CT/MRI/US for complementary detail.