Degraded water suppression in small volume ¹H MRS due to localised shimming.

• High quality, artifact free, ¹H MRS require a homogeneous magnetic field over the volume of interest (VOI) and an effective global water suppression (WS). However, the shim coils act globally and, hence, affect the resonance frequency over the entire object, making the frequency selective WS spatially selective. Unsuppressed water signal may cause spurious echo artifacts. Aim: Study and visualise the effect localised shimming has on WS.

Ämnesord

MEDICIN OCH HÄLSOVETENSKAP  -- Klinisk medicin -- Radiologi och bildbehandling (hsv//swe)

MEDICAL AND HEALTH SCIENCES  -- Clinical Medicine -- Radiology, Nuclear Medicine and Medical Imaging (hsv//eng)

Nyckelord

Adult

Brain

physiology

Brain Mapping

Female

Humans

Magnetic Resonance Spectroscopy

methods

Male

Retrospective Studies

Water

chemistry

Young Adult

Publikations- och innehållstyp

ref (ämneskategori)

art (ämneskategori)