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Type:
Educational Exhibit
Keywords:
Arteries / Aorta, Head and neck, Kidney, MR, MR-Angiography, Cost-effectiveness, Imaging sequences, Haemodynamics / Flow dynamics, Blood, Hypertension
Authors:
A. Petraikin, A. Vinokurov, S. Sidorin; Moscow/RU
DOI:
10.1594/ecr2015/C-1491
Background
T-SLIP sequence allows scanning almost all anatomical areas of the human body in vascular diagnostics - both large vessels,
such as neck vessels [1], chest vessels [2],
abdomen vessels (including portal system [3]),
hepatic artery [4],
renal artery [5],
and vessels of the
limbs,
include small peripheral vessels [6].
All studies were performed on an 1,5 Tesla MR unit (Toshiba Excel ART Vantage,
Japan),
sequence battery included T1,
T2 (including Fat Sat),
T2* (neck region) weighted images,
3D TOF angiography (neck region),
T-SLIP sequence: BBTI (Black Blood Time Interval).
time between application 180 deg.
pulse and start reading sequence was 1200 ms,
varying from 900 to 1500 ms,
reading sequence based on 3D SSFP,
TR 5.2 ms,
TE 2.6 ms,
MA 256x256,
40 images with 2 mm thickness.
Cardiac synchronization (peripheral pulse) was needed at neck region; respiratory synchronization was needed at abdomen region.
21 patients aged 29 to 75 years were analyzed with the T-SLIP technique: 14 of them underwent the examination of a neck artery (6 - with 3D-TOF); 6 patients – renal arteries; 1 patient - abdominal aorta.
Some patients were already diagnozed,
others demonstrated unknown vascular changes.
As the result,
we have found that in some cases T-SLIP angiography can replace classical angiography and it provides enough data for diagnostics by a specialist.
In some cases additional 3D TOF angiography was performed because high resolution images was needed.