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The generic FLASH technique emerges as a gradient echo sequence which combines a low-flip angle radio-frequency excitation of the NMR signal (recorded as a spatially encoded gradient echo) with a rapid repetition of the basic sequence. The repetition time is usually much shorter than the typical T1 relaxation time of the protons in biologic ...
Additionally, Peter Mansfield develops the echo-planar technique, producing images in seconds and becoming the basis for fast MRIs. [5] 1983 - Introduction of the k-space by D B Twieg [6] 1987 - First real-time MRI of the heart is developed [7] 1997 - Parallel imaging with an RF coil array is introduced by D K Sodickson [8]
A variety of techniques can be used to generate the pictures, such as administration of a paramagnetic contrast agent or using a technique known as "flow-related enhancement" (e.g., 2D and 3D time-of-flight sequences), where most of the signal on an image is due to blood that recently moved into that plane (see also FLASH MRI). [53] Techniques ...
Other developments address the possibility of real-time MRI in order to overcome the motion sensitivity of conventional MRI acquisitions and to monitor organ movements in real time. Most recent achievements in real-time MRI are based on FLASH techniques with highly undersampled radial data encodings. When combined with image reconstruction by ...
Sir Peter Mansfield FRS [1] [2] (9 October 1933 – 8 February 2017) [3] was an English physicist who was awarded the 2003 Nobel Prize in Physiology or Medicine, shared with Paul Lauterbur, for discoveries concerning Magnetic Resonance Imaging (MRI).
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The New York Times published an editorial saying that while scientists credit Damadian for holding an early patent in MRI technology, Lauterbur and Mansfield expanded upon Herman Carr's technique in order to produce first 2D and then 3D MR images. The editorial deems this to be worthy of a Nobel prize even though it states clearly in Alfred ...