Angioarchitecture of pulmonary arteriovenous malformations: clinical utility of three-dimensional helical CT

Radiology. 1994 Jun;191(3):657-64. doi: 10.1148/radiology.191.3.8184042.


Purpose: To determine the clinical utility of three-dimensional (3D) helical computed tomography (CT) in pretherapy evaluation of the angioarchitecture of pulmonary arteriovenous malformations (PAVMs).

Materials and methods: Thirty-seven PAVMs were prospectively evaluated with both helical CT and pulmonary angiography. Single-threshold shaded-surface displays were obtained with 2- or 5-mm section thickness, a pitch of 1, and a 360 degrees linear interpolation algorithm but without injection of contrast medium.

Results: A reliable analysis of the angioarchitecture of 28 PAVMs (76%)--25 simple and three complex--was provided by 3D reconstructions; combined interpretation of 3D images and transverse sections led to accurate evaluation of 35 PAVMs (95%). Positioning of the target anatomy in the reconstructed volume, threshold value, number of stacked sections, and section thickness influenced the diagnostic information.

Conclusion: Unenhanced 3D helical CT appears to be a reliable noninvasive tool for pretherapy evaluation of PAVMs.

MeSH terms

  • Adolescent
  • Adult
  • Arteriovenous Malformations / diagnostic imaging*
  • Female
  • Humans
  • Image Processing, Computer-Assisted*
  • Male
  • Middle Aged
  • Prospective Studies
  • Pulmonary Artery / abnormalities*
  • Pulmonary Artery / diagnostic imaging
  • Pulmonary Veins / abnormalities*
  • Pulmonary Veins / diagnostic imaging
  • Tomography, X-Ray Computed* / methods