CERVICAL MYELOGRAM LUMBAR MYELOGRAM
Technique
Single-slice MR myelography was performed using a single-shot turbo spin-echo sequence with extremely long effective TE. The imaging parameters for the cervicothoracic spine in 1.5 TESLA were TR/TE, infinite/1200-1400; echo-train length, 256; signal averaged, one; and imaging time, 2.8 sec. In the lumbar spine, an inversion pulse was applied to completely suppress the fat signal. The scan parameters were TR/TE, infinite/1200-1600; inversion time, 150; echo-train length, 256; signals averaged, four; and imaging time, 32 sec. The spatial resolution (pixel size) for the cervicothoracic and lumbar spine were 0.98 × 0.98 mm and 0.55 × 0.55 mm, respectively. In each patient, three images (in coronal and in bilateral oblique coronal directions) were obtained with a slice thickness of 40-60 mm. Single-slice MR myelographic images were displayed with midsagittal T2-weighted MR images, which allow better anatomic resolution.
3 comments:
everytime i do myelogram my radiologist always ask me,"how do i know what level am i looking at?" Is there a way i can perfom myelogram thats easier for them to count the vertebra?
Actually am not sure any technique is there to know about the vertebral level in MR myelogram.i used to find the level according to the lesion-any filling defects or csf void present and correlate with the sagital T1 or T2 sequences. if we can can identify the lesion or related vertebrae means we can count the other vertebrae according to the spinal csf tract-nerve root tract. Other wise according to the conus medulla from T1 Sag you have to identify the corresponding vertebrae and according to that you can identify...i think its little bit complicated and you can definitely get one exact solution from this..thanks Luke Kulas
Ty for the help..my doc is so anal, i know he can count it but dont want the extra effort of switching or checking one series to another for comparison..i got em spoiled..lol
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