磁共振各部位扫描范围标准

磁共振各部位扫描范围标准

英文回答：

Magnetic resonance imaging (MRI) is a medical imaging technique that uses a strong magnetic field and radio waves to generate detailed images of the body's internal structures. Different regions of the body require specific scanning ranges in order to capture the desired information. The standard scanning range for MRI varies depending on the part of the body being examined.

1. Brain: When scanning the brain, the standard range typically includes the entire brain from the top of the

head to the base of the skull. This allows for the visualization of structures such as the cerebral cortex, cerebellum, and brainstem. In some cases, a more focused scan may be performed to examine a specific area of interest, such as the pituitary gland or the temporal lobes.

2. Spine: For spinal MRI, the standard range usually

covers the entire spine from the cervical (neck) region to the lumbar (lower back) region. This allows for the evaluation of the spinal cord, vertebrae, and

intervertebral discs. Additionally, specific regions of the spine, such as the cervical or lumbar spine, can be scanned individually to assess for conditions like herniated discs or spinal stenosis.

3. Abdomen and Pelvis: When scanning the abdomen and pelvis, the standard range typically includes the liver, kidneys, pancreas, spleen, and pelvic organs. This allows for the assessment of various conditions such as liver tumors, kidney stones, or gynecological disorders. In some cases, a more focused scan may be performed to evaluate a specific organ or region of interest, such as the gallbladder or prostate gland.

4. Extremities: MRI can also be used to examine

specific extremities such as the shoulder, knee, or wrist. The standard scanning range for extremities varies depending on the area of interest. For example, when scanning the shoulder, the range would typically include

the entire shoulder joint, surrounding muscles, and tendons. This allows for the evaluation of conditions like rotator cuff tears or shoulder impingement.

中文回答：

磁共振成像（MRI）是一种医学影像技术，利用强磁场和无线电

波来生成身体内部结构的详细图像。不同的身体部位需要特定的扫

描范围，以捕捉所需的信息。MRI的标准扫描范围因被检查的身体

部位而异。

1. 大脑，在扫描大脑时，标准范围通常包括从头顶到颅底的整

个大脑。这可以观察到脑皮层、小脑和脑干等结构。在某些情况下，可能会进行更专注的扫描以检查感兴趣的特定区域，如垂体或颞叶。

2. 脊柱，对于脊柱MRI，标准范围通常包括从颈椎（颈部）到

腰椎（腰部）的整个脊柱。这可以评估脊髓、椎骨和椎间盘。此外，还可以单独扫描脊柱的特定区域，如颈椎或腰椎，以评估椎间盘突

出或脊柱狭窄等疾病。

3. 腹部和盆腔，在扫描腹部和盆腔时，标准范围通常包括肝脏、肾脏、胰腺、脾脏和盆腔器官。这可以评估肝脏肿瘤、肾结石或妇

科疾病等各种疾病。在某些情况下，可能会进行更专注的扫描以评估感兴趣的特定器官或区域，如胆囊或前列腺。

4. 四肢，MRI也可以用于检查特定的四肢，如肩膀、膝盖或手腕。四肢的标准扫描范围因感兴趣的区域而异。例如，在扫描肩膀时，范围通常包括整个肩关节、周围肌肉和肌腱。这可以评估旋转袖撕裂或肩部撞击等疾病。