OBJECTIVE: In this exploratory study, we used ultrasound speckle-tracking methods, originally used for analyzing cardiac wall motion, to evaluate aortic wall motion. MATERIALS AND METHODS: We compared 19 abdominal aortic aneurysm (AAA) patients with 10 healthy volunteers (diameter, 48 mm vs. 15 mm). Motion pictures of the axial view of the aneurysm using ultrasonography were analyzed. Circumferential strain and strain rate at 6 equally divided segments of the aorta were semiautomatically calculated. We termed 'peak' strain and strain rate as the maximum of strain and strain rate in a cardiac cycle for each segment. We also evaluated the coefficient of variation of peak strain rate for the six segments. RESULTS: In the aneurysm and control groups, the mean values of peak strain along the 6 segments were 1.5% ± 0.6% vs. 4.7% ± 1.6% (p <0.0001), respectively. The coefficient of variation of the peak strain rate was higher in the AAA group (0.74 ± 0.20) than in the control group (0.56 ± 0.12; p <0.05). CONCLUSIONS: Aortic wall compliance decreased in the more atherosclerotic AAA group. The higher relative dispersion of strain rates in the AAA group is indicative of the inhomogeneous movement of the aortic wall.
OBJECTIVE: In this exploratory study, we used ultrasound speckle-tracking methods, originally used for analyzing cardiac wall motion, to evaluate aortic wall motion. MATERIALS AND METHODS: We compared 19 abdominal aortic aneurysm (AAA) patients with 10 healthy volunteers (diameter, 48 mm vs. 15 mm). Motion pictures of the axial view of the aneurysm using ultrasonography were analyzed. Circumferential strain and strain rate at 6 equally divided segments of the aorta were semiautomatically calculated. We termed 'peak' strain and strain rate as the maximum of strain and strain rate in a cardiac cycle for each segment. We also evaluated the coefficient of variation of peak strain rate for the six segments. RESULTS: In the aneurysm and control groups, the mean values of peak strain along the 6 segments were 1.5% ± 0.6% vs. 4.7% ± 1.6% (p <0.0001), respectively. The coefficient of variation of the peak strain rate was higher in the AAA group (0.74 ± 0.20) than in the control group (0.56 ± 0.12; p <0.05). CONCLUSIONS: Aortic wall compliance decreased in the more atheroscleroticAAA group. The higher relative dispersion of strain rates in the AAA group is indicative of the inhomogeneous movement of the aortic wall.
Authors: Konstantinos Karatolios; Andreas Wittek; Thet Htar Nwe; Peter Bihari; Amit Shelke; Dennis Josef; Thomas Schmitz-Rixen; Josef Geks; Bernhard Maisch; Christopher Blase; Rainer Moosdorf; Sebastian Vogt Journal: Ann Thorac Surg Date: 2013-08-30 Impact factor: 4.330
Authors: Frank A Lederle; Samuel E Wilson; Gary R Johnson; Donovan B Reinke; Fred N Littooy; Charles W Acher; David J Ballard; Louis M Messina; Ian L Gordon; Edmund P Chute; William C Krupski; Steven J Busuttil; Gary W Barone; Steven Sparks; Linda M Graham; Joseph H Rapp; Michel S Makaroun; Gregory L Moneta; Robert A Cambria; Raymond G Makhoul; Darwin Eton; Howard J Ansel; Julie A Freischlag; Dennis Bandyk Journal: N Engl J Med Date: 2002-05-09 Impact factor: 91.245
Authors: E Choke; G Cockerill; W R W Wilson; S Sayed; J Dawson; I Loftus; M M Thompson Journal: Eur J Vasc Endovasc Surg Date: 2005-09 Impact factor: 7.069
Authors: P Bihari; A Shelke; T H Nwe; M Mularczyk; K Nelson; T Schmandra; P Knez; T Schmitz-Rixen Journal: Eur J Vasc Endovasc Surg Date: 2013-02-09 Impact factor: 7.069
Authors: Katie A Wilson; Amanda J Lee; Amanda J Lee; Peter R Hoskins; F Gerry R Fowkes; C Vaughan Ruckley; Andrew W Bradbury Journal: J Vasc Surg Date: 2003-01 Impact factor: 4.268
Authors: Arvin H Soepriatna; Frederick W Damen; Pavlos P Vlachos; Craig J Goergen Journal: Int J Cardiovasc Imaging Date: 2017-12-12 Impact factor: 2.357