Christopher Cook

Radiologic Technologist
ARRT responds to Newsweek article on Kwiatkowski
In this Second Opinion article, the American Registry of Radiologic Technologists (ARRT) responds to a June 18 article in Newsweek on David Kwiatkowski, a former radiologic technologist who infected dozens of people with hepatitis C by diverting drugs for his own use. ARRT believes the article did not paint an accurate picture of the organization's role in RT certification.
June 24, 2015
2013 06 03 12 02 47 211 Second Opinion Am 200
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Tracking and quantitative analysis of diaphragmatic motion and projected lung area (PLA) at dynamic chest radiography (DCR) in a 55-year-old healthy man during deep breathing. (A) Posteroanterior radiograph with purple and green lines indicating the right and left lateral diaphragm apices, respectively. (B) Graph of diaphragmatic motion (in millimeters; y-axis) over time (i.e., frame number; x-axis). The software tracked the position of the diaphragm apex at DCR to obtain these amplitude-time plots of diaphragmatic motion (right lung, purple; left lung, green). The dark blue line corresponds to the frame representing the end of inspiration; the light blue line corresponds to the frame representing the end of expiration. (C) Posteroanterior radiograph shows the PLA (outline), which is the area surrounded by the medial edge of the ribs, the diaphragm, and the edge of the mediastinum. (D) Graph of PLA (in millimeters squared; y-axis) over time (i.e., frame number; x-axis). The software automatically tracked the boundaries of the lung fields and obtained the time-varying curves of the bilateral lung field areas. The blue line corresponds to the frame representing the end of inspiration.
Digital X-Ray
Dynamic chest radiography effective for diagnosing COPD
The technique can serve as an alternative to pulmonary function tests for diagnosing chronic obstructive pulmonary disease (COPD).
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