a ruptured aneurysm and accumulation of blood in the subarachnoid space
The increased density in the subarachnoid space
in pseudo-subarachnoid hemorrhage has been postulated to be due to engorgement of pial vasculature combined with heightened vascular conspicuity due to decreased parenchymal attenuation.
3) Attenuated flow is often noted between the suboccipital subarachnoid space
and the craniocervical junction, which improves after craniotomy.
Measurement of shift of the cauda equina in the subarachnoid space
by changing position.
The spinal cord terminates at L1/2 and the subarachnoid space
at S2 in adults.
Extensive abnormal subarachnoid space
enhancement is seen on FLAIR but not with T1 contrast image.
It then exits via three small openings into the subarachnoid space
where it circulates around the surface of the spinal cord and brain.
Injection of iohexol into the cerebellomedullary cistern, which communicates with the subarachnoid space
, was successful on the first attempt in 11 of the 12 pigeons.
This overlies the subarachnoid space
filled with cerebrospinal fluid (CSF).
Extension through the superior aspect of the left cerebellar hemisphere into the subarachnoid space
was noted during the surgery.
While hospitalized, she received a CT scan, IV medications for pain and anxiety, and a lumbar puncture (spinal tap), a painful procedure where a large needle is placed into the subarachnoid space
in the spinal canal of the low back and fluid is withdrawn from the space with the syringe.
In our patient, who had been diagnosed with some congenital genitourinary anomalies, the possibility exists of a midline septum in the subarachnoid space
which could have led to such a distribution of anaesthesia.