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Echogenicity (sometimes as echogenecity) or echogeneity is the ability to bounce an echo, e.g. return the signal in medical ultrasound examinations. In other words, echogenicity is higher when the surface bouncing the sound echo reflects increased sound waves.
While this trial and a similar trial conducted by Mayo Clinic in 2005 demonstrated that CT was able to detect lung cancer at a higher rate than chest x-ray, both these trials used survival improvement, rather than mortality reduction, as an outcome, and thus were unable to prove that the use of CTs in lung cancer screening was actually ...
Endoscopic ultrasound (EUS) or echo-endoscopy is a medical procedure in which endoscopy (insertion of a probe into a hollow organ) is combined with ultrasound to obtain images of the internal organs in the chest, abdomen and colon. It can be used to visualize the walls of these organs, or to look at adjacent structures.
It is now known as the Mayo–Gibbon heart–lung machine. [77] Mayo Clinic associates Edward Howard Lambert, Lealdes (Lee) McKendree Eaton, and Edward Douglas Rooke were the first physicians to substantially describe the clinic and electrophysiological findings of what is known as Lambert–Eaton myasthenic syndrome in 1956.
Small-cell lung carcinoma (SCLC) has long been divided into two clinicopathological stages, termed limited stage (LS) and extensive stage (ES). [8] The stage is generally determined by the presence or absence of metastases, whether or not the tumor appears limited to the thorax, and whether or not the entire tumor burden within the chest can feasibly be encompassed within a single radiotherapy ...
The National Lung Screening Trial was a United States-based clinical trial which recruited research participants between 2002 and 2004. [1] It was sponsored by the National Cancer Institute and conducted by the American College of Radiology Imaging Network and the Lung Screening Study Group. [1]
Angiomyolipoma seen as a hyperechoic mass in the upper pole of an adult kidney on renal ultrasonography. Renal ultrasonography of a person with tuberous sclerosis and multiple angiomyolipomas in the kidney: Measurement of kidney length on the US image is illustrated by '+' and a dashed line. CT scan of a renal angiomyolipoma.
Medical ultrasound includes diagnostic techniques (mainly imaging techniques) using ultrasound, as well as therapeutic applications of ultrasound. In diagnosis, it is used to create an image of internal body structures such as tendons, muscles, joints, blood vessels, and internal organs, to measure some characteristics (e.g., distances and velocities) or to generate an informative audible sound.