CPT® Code 71552

Magnetic resonance (eg, proton) imaging, chest (eg, for evaluation of hilar and mediastinal lymphadenopathy); without contrast material(s), followed by contrast material(s) and further sequences

Magnetic resonance imaging (MRI) of the chest is a sophisticated imaging technique that utilizes the magnetic properties of hydrogen nuclei within the body to create detailed images of the chest area. This noninvasive procedure does not involve ionizing radiation, making it a safer alternative for evaluating various thoracic conditions. During the MRI, a powerful magnetic field is generated, which causes the hydrogen atoms in the body to align. Subsequently, radiowaves are transmitted into this magnetic field, prompting the protons in different tissues to emit specific radiofrequency signals. These signals are captured by a computer, which processes the data to produce high-resolution tomographic images in slices, allowing for a comprehensive view of the chest structures. The MRI is particularly useful for assessing conditions such as hilar and mediastinal lymphadenopathy, where lymph nodes in the chest may be enlarged due to infection, inflammation, or malignancy. The procedure described by CPT® Code 71552 involves performing the MRI without the use of contrast material initially, followed by the administration of contrast material to enhance the visibility of certain structures and allow for further imaging sequences. This dual-phase approach aids physicians in diagnosing various diseases, evaluating lymph nodes and blood vessels, and determining the presence or spread of cancer within the chest.