Mapping strain exerted on blood vessel walls using deuterium double-quantum-filtered MRI
نویسندگان
چکیده
منابع مشابه
H-spectroscopic double quantum filtered MRI
Most studies on articular cartilage properties have been conducted after detachment of the cartilage from the bone. In the present work we investigated the effect of detachment on collagen fiber architecture. We used one-dimensional H double quantum filtered MRI on cartilage bone plugs equilibrated in deuterated saline. The quadrupolar splittings observed in the different zones were related to ...
متن کاملNon - invasive average axon diameter mapping using double pulsed field gradient ( d - PFG ) filtered MRI
The diameter of myelinated axons is a critical neurophysiological parameter that scales with nerve conduction velocity. In the spinal cord, axons are somatotopically organized into distinct anatomical regions performing specific functions, and characterized by different diameters and diameter distributions. Measuring axon diameters can shed light on nerve function and pathology. In this study w...
متن کاملAssessment of Functional Properties of Cartilage using Double Quantum Filtered MRI
It is biologically and clinically important to understand and explain the functional properties of cartilage, such as its load bearing and lubricating ability, in terms of the structure, organization, components and their interactions. Our approach tries to explain functional material properties of these tissues as arising from polymeric interactions between and among the different molecular co...
متن کاملMapping the fiber orientation in articular cartilage at rest and under pressure studied by 2H double quantum filtered MRI.
The one-dimensional (2)H double quantum filtered (DQF) spectroscopic imaging technique was used to study the orientation of collagen fibers in articular cartilage. The method detects only water molecules in anisotropic environments, which in cartilage is caused by their interaction with the collagen fibers. A large quadrupolar splitting was observed in the calcified zone and a smaller splitting...
متن کاملMeasurement of vessel wall strain using cine phase contrast MRI.
PURPOSE To determine the feasibility of using magnetic resonance imaging (MRI) to non-invasively measure strain in the aortic wall. MATERIALS AND METHODS Cine phase contrast MRI was used to measure the velocity of the aortic wall and calculate changes in circumferential strain over the cardiac cycle. A deformable vessel phantom was used for initial testing and in vitro validation. Ultrasonic ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Proceedings of the National Academy of Sciences
سال: 1998
ISSN: 0027-8424,1091-6490
DOI: 10.1073/pnas.95.8.4108