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Hyperpolarized gas MRI, also known as hyperpolarized helium-3 MRI or HPHe-3 MRI, is a medical imaging technique that uses hyperpolarized gases to improve the sensitivity and spatial resolution of magnetic resonance imaging (MRI). This technique has many potential applications in medicine, including the imaging of the lungs and other areas of ...
In particular, the lung, which lacks substantial density of protons, is particularly useful to be visualized with 129 Xe gas MRI. This technique has promise as an early-detection technology for chronic lung diseases and imaging technique for processes and structures reliant on dissolved gases.
A lung nodule or pulmonary nodule is a relatively small focal density in the lung. A solitary pulmonary nodule ( SPN ) or coin lesion , [ 1 ] is a mass in the lung smaller than three centimeters in diameter.
Percussion is performed in a systematic matter, from the upper chest to the lower ribs, and resonance is compared between the left and right sides of the chest. This is done from the front and back of the thorax. [14] Percussion over different body tissues results in five common "notes". [14] Resonance: Loud and low pitched. Normal lung sound. [15]
Lung cancer staging is the assessment of the extent to which a lung cancer has spread from its original source. As with most cancers, staging is an important determinant of treatment and prognosis .
A lobectomy is the surgical removal of one of the five lung lobes (right upper, right middle, right lower, left upper and left lower lobes). [24] Lobectomies are the most common type of lung surgery and the standard operation for most NSCLC patients. [25] Though specific surgical techniques vary for each lobe, the general workflow is identical.
MIP is used for the detection of lung nodules in lung cancer screening programs which use computed tomography scans. MIP enhances the 3D nature of these nodules, making them stand out from pulmonary bronchi and vasculature.
A contrast agent (or contrast medium) is a substance used to increase the contrast of structures or fluids within the body in medical imaging. [1] Contrast agents absorb or alter external electromagnetism or ultrasound, which is different from radiopharmaceuticals, which emit radiation themselves.