Transvascular imaging: Feasibility study using a vector phased array ultrasound catheter

Research output: Contribution to journalArticle

15 Citations (Scopus)

Abstract

Background: Transvascular imaging is defined as the acquisition of anatomic and functional information of structures lying beyond the confines of a vascular conduit within which the imaging device resides. Interrogating structures surrounding the vascular conduit is the subject of this feasibility study using a novel underblood, phased array ultrasound-tipped catheter. Methods: An intravascular catheter (10-F, 3.2-mm-diameter, four- way articulation) tipped with a 5.5- to 10-MHz frequency agile, vector phased array transducer with full Doppler capability (Sequoia, Acuson) was used. The imaging transducer has a wide range of tissue penetration (2 mm to >10 cm from the lens). The catheter was introduced via an 11-Fr femoral venous sheath into the inferior and superior vena cavae and right heart chambers. As the catheter was advanced, attention was directed to visualization of structUres surrounding the vessel in which the catheter resided. Results: From the cavae and femoral vein the thoracic, abdominal and femoral arteries could be easily imaged. Anatomy that was visualized included the liver, hepatic veins, gallbladder, and mesenteric vessels. Normal and pathological anatomy and Doppler physiology could be readily appreciated. Doppler (i.e., pulsed- and continuous-wave, color flow, and tissue Doppler) fostered unique transvascular physiological hemodynamic and flow assessment. Conclusion: Transvascular imaging is feasible in human subjects using this 10-Fr catheter tipped with a 5.5- to 10-MHz vector phased array transducer. Intravascular navigation to a desired location within the body and the performance of diagnostic or therapeutic procedures at a remote site under direct ultrasound visualization are possible. Full Doppler capability extends the concept of transvascular hemodynamic and physiological assessment.

Original languageEnglish (US)
Pages (from-to)425-430
Number of pages6
JournalEchocardiography
Volume16
Issue number5
StatePublished - 1999

Fingerprint

Feasibility Studies
Catheters
Transducers
Blood Vessels
Anatomy
Sequoia
Thoracic Arteries
Hemodynamics
Superior Vena Cava
Hepatic Veins
Femoral Vein
Inferior Vena Cava
Femoral Artery
Thigh
Gallbladder
Lenses
Color
Equipment and Supplies
Liver

Keywords

  • Doppler
  • Echocardiography
  • Interventiona l
  • Intravascular
  • Transvascular
  • Ultrasound

ASJC Scopus subject areas

  • Cardiology and Cardiovascular Medicine
  • Radiology Nuclear Medicine and imaging

Cite this

Transvascular imaging : Feasibility study using a vector phased array ultrasound catheter. / Bruce, Charles J; Packer, Douglas L; Seward, James B.

In: Echocardiography, Vol. 16, No. 5, 1999, p. 425-430.

Research output: Contribution to journalArticle

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