ventilation-perfusion (VQ) scan

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Introduction

Assessment of ventilation-perfusion (VQ) mismatch.

Indications

Clinical significance

Sensitivity: 77%, specificity 98%[3]

VQ scans underestimate severity of central pulmonary arterial obstruction.[2]

More general terms

References

  1. 1.0 1.1 1.2 Medical Knowledge Self Assessment Program (MKSAP) 11, 16, 18. American College of Physicians, Philadelphia 1998, 2012, 2018
  2. 2.0 2.1 Smith R., Jewish Home for the Aging, Reseda CA, 2001, unpublished
  3. 3.0 3.1 Sostman HD et al, Acute pulmonary embolism: Sensitivity and specificity of ventilation-perfusion scintigraphy in PIOPED II study. Radiology 2008, 246:941 PMID: https://www.ncbi.nlm.nih.gov/pubmed/18195380
  4. 4.0 4.1 Salaun P-Y et al. Noninvasive diagnosis of pulmonary embolism. Chest 2011 Jun; 139:1294 PMID: https://www.ncbi.nlm.nih.gov/pubmed/20724733