What does MOTSA stand for in mri?

Abstract. Multiple overlapping thin slab acquisition (MOTSA) is a novel time-of-flight magnetic resonance (MR) angiography technique that combines many of the advantages of multiple-section two-dimensional and direct three-dimensional volume methods.

What is MOTSA?

MOTSA, which stands for Multiple Overlapping Thin Slab Acquisition, is a hybrid between 2D and 3D TOF techniques. MOTSA involves the sequential acquisition of a several overlapping 3D volumes (or “slabs”). Each slab is typically less than 5 cm in thickness, so the number of contained slices is small (e.g., 16-32).

What artifact is seen only multiple overlapping thin slab acquisition?

Venetian Blind Artifact (3D MRA only) This is a specific artifact seen only with the MOTSA (Multiple Overlapping Thin Slab Acquisition) technique. It represents overlap between adjacent slabs that are acquired as separate acquisitions and then fused together.

What is Trufi sequence?

TRUFI: true fast imaging with steady-state free precession.

What is a haste sequence?

The half-Fourier single-shot turbo spin-echo (HASTE) sequence [1] is an ultrafast magnetic resonance (MR) imaging technique that acquires slightly more than half of two-dimensional imaging k-space after a single excitation pulse by means of an echo train separated by refocusing pulses.

What is a motza?

motza. A large sum of money, especially as won in gambling; a fortune; a great amount. There is also a transferred sense meaning ‘a certainty’. Motza can be spelt in various forms including motsa, motser, and motzer. The word is probably derived from the Yiddish word matse meaning ‘(unleavened) bread’.

What are matzo crackers?

Matzo is a bland, cracker-like flatbread made of white plain flour and water. It is the substitute for bread during Passover, a holiday in which Jews refrain from eating bread, leavened products, or the five grains known as barley, spelt, rye, oats, and wheat in any processed form except dry-roasting and as matzo.

Does flow velocity direction and turbulence play a major role contrast enhanced MRA?

Flow-related phenomena (e.g., velocities, flow direction, turbulence) — factors that play dominant roles in the appearance of vessels on non-contrast MRA studies — have little or no effect on CE-MRA where vascular signal intensity is determined principally the the concentration of gadolinium within the vessel.

What is partial volume averaging in MRI?

The partial volume effect (PVE) arises in volumetric images when more than one tissue type occurs in a voxel. In such cases, the voxel intensity depends not only on the imaging sequence and tissue properties, but also on the proportions of each tissue type present in the voxel.

What is haste sequence?

What are the types spin echo pulse sequence?

The two variables of interest in spin echo sequences are the repetition time (TR) and the echo time (TE). All spin echo sequences include a slice selective 90-degree pulse followed by one or more 180 degree refocusing pulses as shown in the diagrams.

What is a Trufi sequence?