Table 2.

Kidney functional parameters in patients with essential hypertension (EH) and atherosclerotic renal artery stenosis (ARAS)

Single kidney	EH (N=28)a,b	ARAS
		Stenotic (n = 14)a	Contralateral (n=14)a
Total kidney volume (CT), cc	144.3±6.6	118.6±9.9c,d	155.4±13.7
Cortical volume, cc	96.1±5.9	80.1±7.8d	111.8±12.1
Medullary volume, cc	48.2±3.5	38.5±4.5	43.6±6.1
Total renal blood flow, mL/min	404.6±28.9	269.7±42.2c,d	383.7±49.0
MRI studies: BOLD magnetic resonance
Basal cortical R2*, s−1	18.6±0.6	170.0±0.6	16.9±0.5
Basal medullary R2*, s−1 e	38.2±1.0	37.5±1.5	41.9±1.4
Change in R2* after furosemide	7.0±1.1	5.7±1.8d	9.4±1.9
PRA, ng/mL per h	8.2±2.1	24.3±5.0c,d	18.3±4.3

^aData are mean ± SEM

^bData from both kidneys were compiled

^cP<0.05 vs EH

^dP<0.05 vs contralateral

^eAll of the values of medullary R2* were higher than cortical values (P<0.0001)

PRA plasma renin activity

(From Gloviczki et al. [25••], with permission)