TY - JOUR
T1 - MR of cervical lymph nodes
T2 - Comparison of fast spin-echo and conventional spin-echo T2W scans
AU - Yousem, D. M.
AU - Hurst, R. W.
PY - 1994
Y1 - 1994
N2 - Purpose: In order to explore the utility of fast spin-echo techniques in the neck, 50 consecutive conventional spin-echo (CSE) long TR examinations were compared with 50 consecutive fast spin-echo (FSE) long TR scans for cervical lymph nodes. Materials and Methods: Standard CSE examinations used parameters of 2200/80/1 (TR/TE/excitations), 256×128 matrix, 5 mm thick with interslice gaps between 1 and 2.5 mm. FSE studies were employed with TR of 4000/80/2, 256×192 matrix, fat suppression and 5 mm contiguous slices. Standard T1-weighted examinations and clinical correlation were used as proof of nodal presence. Results: Overall vascular flow artefacts, patient motion artefacts, and image quality were comparable between the two techniques. Lymph node detectability was superior with FSE scans (P<0.05). Typical time saved was approximately 4.5 min with FSE, despite the use of larger matrices, contiguous slices and twice the excitations. Conclusion: FSE is a competitive technique to CSE images in the neck, yielding similar quality images with higher resolution, reduced scan time, and improved lymph node detectability.
AB - Purpose: In order to explore the utility of fast spin-echo techniques in the neck, 50 consecutive conventional spin-echo (CSE) long TR examinations were compared with 50 consecutive fast spin-echo (FSE) long TR scans for cervical lymph nodes. Materials and Methods: Standard CSE examinations used parameters of 2200/80/1 (TR/TE/excitations), 256×128 matrix, 5 mm thick with interslice gaps between 1 and 2.5 mm. FSE studies were employed with TR of 4000/80/2, 256×192 matrix, fat suppression and 5 mm contiguous slices. Standard T1-weighted examinations and clinical correlation were used as proof of nodal presence. Results: Overall vascular flow artefacts, patient motion artefacts, and image quality were comparable between the two techniques. Lymph node detectability was superior with FSE scans (P<0.05). Typical time saved was approximately 4.5 min with FSE, despite the use of larger matrices, contiguous slices and twice the excitations. Conclusion: FSE is a competitive technique to CSE images in the neck, yielding similar quality images with higher resolution, reduced scan time, and improved lymph node detectability.
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U2 - 10.1016/S0009-9260(05)82657-1
DO - 10.1016/S0009-9260(05)82657-1
M3 - Article
C2 - 7955826
AN - SCOPUS:0028060551
VL - 49
SP - 670
EP - 675
JO - Clinical Radiology
JF - Clinical Radiology
SN - 0009-9260
IS - 10
ER -