Table 2:

Individual patient demographics and lumbar CSF manometry readings in 4 patients who underwent a CT-guided LP

				CSF Pressure (cm H20)
Patient	Age (yr)/Sex	Indication	BMI	Rest Pressure	Valsalva	Normal Inspiration	Mid-Resisted Inspiration	End-Resisted Inspiration
1	69/F	Prior idiopathic leptomeningeal enhancement	19.6	13	15	14	15	17
2	45/F	New-onset psychosis	27.9	33	40	38	39	41
3	75/M	Intrathecal chemotherapy	24.2	0	7	1	1	2
4	59/M	Metastatic lung cancer	27.3	2	7	5	10	16

Note:—F indicates female; M, male; BMI, body mass index.