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Letters |

Excluding Pulmonary Embolism With Computed Tomographic Pulmonary Angiography or Ventilation-Perfusion Lung Scanning

Muhammad Ayaz Mir, MBBS
JAMA. 2008;299(14):1664-1665. doi:10.1001/jama.299.14.1664-a.
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To the Editor: In their randomized trial, Dr Anderson and colleagues1 investigated computed tomographic pulmonary angiography (CTPA) vs ventilation-perfusion (/) lung scanning in patients with suspected pulmonary embolism. They dichotomized the Wells score into pulmonary embolism likely vs unlikely. Because of the characteristics of / scanning, however, they still had to allocate a nondiagnostic (nonhigh probability) category. In their algorithm, patients in this category were excluded for pulmonary embolism if repeat leg vein ultrasonography was negative in 1 week, even with a likely clinical probability and a positive D-dimer.


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April 9, 2003
Lewis H. Kuller, MD, DrPH
JAMA. 2003;289(14):1777. doi:10.1001/jama.289.14.1777-a.
April 9, 2003
David B. Allison, PhD; Chenxi Wang, MD; David T. Redden, PhD; Andrew O. Westfall, MS; Kevin R. Fontaine, PhD
JAMA. 2003;289(14):1777. doi:10.1001/jama.289.14.1777-a.
April 9, 2008
Oscar M. Jolobe, MRCP
JAMA. 2008;299(14):1664-1665. doi:10.1001/jama.299.14.1664-b.
April 9, 2008
David R. Anderson, MD; Marc A. Rodger, MD; Philip S. Wells, MD
JAMA. 2008;299(14):1664-1665. doi:10.1001/jama.299.14.1664-c.
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