Three-Dimensional T2-Weighted MRI of the Human Femoral Arterial Vessel Wall at 3.0 Tesla

A three-dimensional stress-strain relationship derived from a strain energy function of the exponential form is proposed for the arterial wall. The material constants are identified from experimental data on rabbit arteries subjected to inflation and longitudinal stretch in the physiological range. The objectives are: 1) to show that such a procedure is feasible and practical, and 2) to call attention to the very large variations in stresses and strains across the vessel wall under the assumptions that the tissue is incompressible and stress-free when all external load is removed.

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Free‐Breathing Three‐Dimensional Isotropic‐Resolution MR sequence for simultaneous vessel wall imaging of bilateral renal arteries and abdominal aorta: Feasibility and reproducibility

Medical Physics ◽

10.1002/mp.15436 ◽

2021 ◽

Author(s):

Zihan Ning ◽

Nan Zhang ◽

Huiyu Qiao ◽

Hualu Han ◽

Rui Shen ◽

...

Keyword(s):

Abdominal Aorta ◽

Vessel Wall ◽

Three Dimensional ◽

Free Breathing ◽

Renal Arteries ◽

Vessel Wall Imaging ◽

Isotropic Resolution ◽

Wall Imaging

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Morphological prediction of glaucoma by quantitative analyses of ocular shape and volume using 3-dimensional T2-weighted MR images

Scientific Reports ◽

10.1038/s41598-019-51611-0 ◽

2019 ◽

Vol 9 (1) ◽

Author(s):

Yasuko Tatewaki ◽

Tatsushi Mutoh ◽

Kazuko Omodaka ◽

Benjamin Thyreau ◽

Izumi Matsudaira ◽

...

Keyword(s):

Axial Length ◽

Spin Echo ◽

Three Dimensional ◽

Spherical Shape ◽

Anisotropy Ratio ◽

Mr Images ◽

3.0 Tesla ◽

3 Dimensional ◽

Topographic Features ◽

Quantitative Analyses

Abstract Elongated axial length of the eye increases the morbidity of glaucoma. Myopia also associates with elongated axial length, and such ellipsoid shape of the eyeball strongly contributes its pathogenesis. Morphological features of the eyeballs, which could be important factors for developing glaucoma, have not been well described. The aim of this study was to investigate the three-dimensional (3D) topographic features of glaucomatous eyeballs with/without myopia to evaluate the potential of those features for predicting glaucoma. Using a 3.0-tesla MRI, volume-isotropic turbo-spin-echo acquisition T2-weighted images were obtained from 55 patients with glaucoma and 22 controls to delineate the eyeballs. Eyeball volumes, axial lengths and transverse lengths were semi-automatically calculated and compared between four groups: normal, myopia, glaucoma, and glaucoma with myopia. Both glaucoma and myopia increased the eyeball volume compared to the normal eyes. An increased anisotropy ratio (axial/transversus length) was observed in myopic eyes compared to normal, whereas in the glaucomatous eyes, with or without myopia, no increase in anisotropy ratio was observed. Increasing volume of eyes can be caused by myopia and glaucoma. Myopic eyes were ellipsoid in shape, but there was less anisotropy and a near-spherical shape in glaucomatous eyes, even in glaucomatous myopic eyes.

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2010 Delayed enhancement of the coronary artery vessel wall in patients with coronary artery disease at 3.0 Tesla

Journal of Cardiovascular Magnetic Resonance ◽

10.1186/1532-429x-10-s1-a279 ◽

2008 ◽

Vol 10 (S1) ◽

Author(s):

Sebastian Kelle ◽

Kelly Schlendorf ◽

Glenn A Hirsch ◽

Eckart Fleck ◽

Robert G Weiss ◽

...

Keyword(s):

Coronary Artery Disease ◽

Coronary Artery ◽

Vessel Wall ◽

Delayed Enhancement ◽

3.0 Tesla ◽

Artery Disease

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INTRA-RATER AND INTER-RATER RELIABILITY STUDY OF A MEASUREMENT METHOD FOR THE PATHWAY OF THE SUPRASPINATUS INTRAMUSCULAR TENDON BY 3.0 TESLA MRI IMAGES: THE SHEAR FORCE ANGLE ANTERIOR POSTERIOR

Journal of Musculoskeletal Research ◽

10.1142/s0218957718500094 ◽

2018 ◽

Vol 21 (02) ◽

pp. 1850009

Author(s):

Yohei Kanno ◽

Hajime Toda ◽

Tsutomu Horiuchi ◽

Masaki Katayose

Keyword(s):

Shear Force ◽

Measurement Method ◽

Intraclass Correlation ◽

Three Dimensional ◽

3D Models ◽

Minimal Detectable Change ◽

3.0 Tesla ◽

Rater Reliability ◽

The Mean ◽

Anterior Posterior

Objective: The aim of this study was to establish intra-rater and inter-rater reliability of a measurement method for the pathway of the supraspinatus intramuscular tendon by 3.0 tesla MRI images. Methods: The scapula and intramuscular tendon extraction DICOM data was made to extract only a scapula domain and intramuscular tendon domain. The shear force angle anterior posterior (SFA-AP) was measured as the pathway of supraspinatus intramuscular tendon with respect to the glenoid plane on three-dimensional (3D) models of the bone and intramuscular tendon. SFA-AP of supraspinatus was measured on 3D models of the bone and intramuscular tendon. The mean and standard deviation of SFA-AP of supraspinatus was calculated. Intra-rater reliability and inter-rater reliability were evaluated by the intraclass correlation coefficient (ICC), the standard error of the mean (SEM) and the minimal detectable change (MDC). Inter-rater reliability was evaluated by three raters. Results: As for intra-rater reliability, SFA-AP of supraspinatus measured averaged [Formula: see text], with ICC (1,1) of 0.978, with ICC (1,3) of 0.993, with SEM of 0.53, with MDC of 1.46[Formula: see text]. As for inter-rater reliability, SFA-AP of supraspinatus measured averaged [Formula: see text] (rater1), SFA-AP measured averaged [Formula: see text] (rater2), SFA-AP measured averaged [Formula: see text] (rater3), with ICC (2,1) of 0.896, with ICC (2,3) of 0.963, with SEM of 1.11, with MDC of 3.09[Formula: see text]. Conclusions: 3D models of the bone and intramuscular tendon were evaluated as intra-rater and inter-rater reliabilities. SFA-AP of supraspinatus is guaranteed by one measurement.

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A near infrared angioscope visualizing lipid within arterial vessel wall based on multi-spectral image in 1.7 μm wavelength band

10.1117/12.2005360 ◽

2013 ◽

Cited By ~ 1

Author(s):

Takemi Hasegawa ◽

Ichiro Sogawa ◽

Hiroshi Suganuma

Keyword(s):

Vessel Wall ◽

Near Infrared ◽

Wavelength Band ◽

Spectral Image ◽

Arterial Vessel

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Oxygen mass transfer in a model three-dimensional artery

Journal of The Royal Society Interface ◽

10.1098/rsif.2007.1338 ◽

2008 ◽

Vol 5 (26) ◽

pp. 1067-1075 ◽

Cited By ~ 40

Author(s):

G Coppola ◽

C Caro

Keyword(s):

Mass Transfer ◽

Shear Stress ◽

Vessel Wall ◽

Three Dimensional ◽

Oxygen Mass Transfer ◽

Dimensional Model ◽

Flow Conditions ◽

Human Coronary Artery ◽

Three Dimensional Model ◽

Physiological Flow

Arterial geometry is commonly non-planar and associated with swirling blood flow. In this study, we examine the effect of arterial three-dimensionality on the distribution of wall shear stress (WSS) and the mass transfer of oxygen from the blood to the vessel wall in a U-bend, by modelling the blood vessels as either cylindrical or helical conduits. The results show that under physiological flow conditions, three-dimensionality can reduce both the range and extent of low WSS regions and substantially increase oxygen flux through the walls. The Sherwood number and WSS distributions between the three-dimensional helical model and a human coronary artery show remarkable qualitative agreement, implying that coronary arteries may potentially be described with a relatively simple idealized three-dimensional model, characterized by a small number of well-defined geometric parameters. The flow pattern downstream of a planar bend results in separation of the Sh number and WSS effects, a finding that implies means of investigating them individually.

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