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83%    the  diagnostic yield resulted from the  PRECIsE study on Intuitive's Ion endoluminal system, which represents the likelihood that tissue samples obtained during pulmonary nodule biopsy will provide physicians with information needed to establish a diagnosis.

"The preliminary results of 69 people with up to 14-month follow up for applicable people are a subset of the study’s 365 patients. The company noted that PRECIsE is the first multi-center study of the Ion system’s shape-sensing, robotic-assisted technology. Among the initial results of the ongoing study reported Sunday at the American College of Chest Physicians (CHEST) conference, the system showed: Encouraging diagnostic yield for both smaller and larger nodules: Ion-enabled biopsies helped investigators obtain a diagnosis in 82% of cases with nodules between 1-2 centimeters, 85% with nodules between 2-3 cm. A strong safety profile: and sensitivity for malignancy from samples obtained from nodule biopsy was 84%-88%."

Source: Seeking Alpha