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Intravascular ultrasonography allows accurate assessment of abdominal aortic aneurysm: An in vitro validation study  Jeroen A. van Essen, MD, Aad van.

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Presentation on theme: "Intravascular ultrasonography allows accurate assessment of abdominal aortic aneurysm: An in vitro validation study  Jeroen A. van Essen, MD, Aad van."— Presentation transcript:

1 Intravascular ultrasonography allows accurate assessment of abdominal aortic aneurysm: An in vitro validation study  Jeroen A. van Essen, MD, Aad van der Lugt, PhD, Elma J. Gussenhoven, PhD, Trude C. Leertouwer, MD, Pieter Zondervan, MD, Marc R.H.M. van Sambeek, MD  Journal of Vascular Surgery  Volume 27, Issue 2, Pages (February 1998) DOI: /S (98) Copyright © 1998 Society for Vascular Surgery and International Society for Cardiovascular Surgery, North American Chapter Terms and Conditions

2 Fig. 1 In vitro setup showing intravascular ultrasound catheter advanced through sensing unit of displacement-sensing device and sheath toward pressurized vascular specimen. Catheter tip position in relation to proximal sheath is indicated in right upper corner. Displacement-sensing device is seen in insert in left upper panel. Calibration: 5 mm. Journal of Vascular Surgery  , DOI: ( /S (98) ) Copyright © 1998 Society for Vascular Surgery and International Society for Cardiovascular Surgery, North American Chapter Terms and Conditions

3 Fig. 2 Artist's rendition of abdominal aortic aneurysm illustrating side branches, aneurysm, and proximal and distal neck. On left, measurements as performed externally, on right, measurements with IVUS. Intraluminal line represents ultrasound catheter. Journal of Vascular Surgery  , DOI: ( /S (98) ) Copyright © 1998 Society for Vascular Surgery and International Society for Cardiovascular Surgery, North American Chapter Terms and Conditions

4 Fig. 3 Intravascular ultrasound cross sections and histologic counterparts (hematoxylin-eosin stain). Upper panel shows normal aorta with two-layered structure. Middle panel shows normal aorta with three-layered structure. Lower panel shows atherosclerotic aorta with calcified lesion at 4 o'clock position (straight arrow) and fibrous lesion at 8 o'clock position (curved arrow). Note absence of circular shape in histologic section in middle panel. Calibration: 5 mm (IVUS) and 1 mm (histologic evaluation). Journal of Vascular Surgery  , DOI: ( /S (98) ) Copyright © 1998 Society for Vascular Surgery and International Society for Cardiovascular Surgery, North American Chapter Terms and Conditions

5 Fig. 4 Intravascular ultrasound cross section and histologic counterpart (hematoxylin-eosin stain) of aneurysmal aorta showing thrombus from 1 o'clock position to 7 o'clock position. Calibration: 5 mm (IVUS) and 1 mm. Journal of Vascular Surgery  , DOI: ( /S (98) ) Copyright © 1998 Society for Vascular Surgery and International Society for Cardiovascular Surgery, North American Chapter Terms and Conditions

6 Fig. 5 Comparison between histologic and external measurements and intravascular ultrasound measurements. Journal of Vascular Surgery  , DOI: ( /S (98) ) Copyright © 1998 Society for Vascular Surgery and International Society for Cardiovascular Surgery, North American Chapter Terms and Conditions

7 Fig. 6 Three-dimensional reconstruction of aneurysmal aorta. Lines A and B represent longitudinal reconstructed sections (right panels), which stand perpendicular to each other as demonstrated in axial image (left panel). Upper panel shows proximal neck with superior mesenteric artery (large arrow), renal arteries (small arrows), and proximal part of aneurysm (curved arrow). Lower panel shows proximal neck, aneurysm with thrombus (*), and aortic bifurcation (open arrow). Journal of Vascular Surgery  , DOI: ( /S (98) ) Copyright © 1998 Society for Vascular Surgery and International Society for Cardiovascular Surgery, North American Chapter Terms and Conditions

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