Table 4:

Imaging features in patients with infection, sepsis, and shock

Pt #	Imaging Locations of PRES Vasogenic Edema						MRA	Imaging Modality	DWI	F/U Imaging	Clinical at Discharge	Edema Grade	MAP
Pt #	C	T	O	P	F	Misc	MRA	Imaging Modality	DWI	F/U Imaging	Clinical at Discharge	Edema Grade	MAP
Group1
1			x	x	x			MR	n/o		Resolved	3	86
2							Spasm-imp	MR	Neg	Res		2	78
3		x	x	x	x			MR	Neg	Resolving	Resolved	5	87
4	x	x	x	x	x	t	Pruning	MR	n/o		Resolved	5	104
5		x	x	x	x			CT		Res		3	98
6				x				CT			Expired	2	106
7							Pruning	MR	Neg	Resolving	Resolved	2	101
8		x	x	x	x			CT		Res		5	104
9	x		x	x	x		Normal	MR	Neg	Res		2	93
10			x	x	x			MR	Neg*	Resolving	Resolved	4	85
Group 2
11	x	x	x	x		t mb	Spasm/prun	MR	Neg		Normal	2	138
12	x		x	x	x			MR	Neg	Res		3	140
13	x	x	x	x	x	bs mb c		MR	Neg	Res		1	133
14	x	x	x	x	x	bs		MR	Neg	Res		3	135
15		x	x	x	x			CT			Resolved	1	126
16		x	x	x				CT			Expired	2	123
17	x		x	x		t	Spasm	MR	Neg	Resolving	Resolved	2	148
18		x	x	x	x		Spasm	MR	Neg	Resolving	Resolved	3	129
19			x	x	x		Spasm-rev	MR	Neg	Res		1	133
20	x	x	x	x		bs		MR	Neg	Resolving	Resolved	2	141
21				x	x			MR	Neg	—	Resolved	1	157
22		x	x	x	x		Spasm	MR	Neg	Res		4	130
23	x	x	x	x				MR	Neg	Res		1	143
24	x	x	x	x			Spasm-rev	MR	Neg*	Res*		3	143
25		x	x	x	x			MR	n/o	Res		2	140

Note:—PRES indicates posterior reversible encephalopathy syndrome; C, cerebellum; T, temporal lobe/inferior temporal-occipital junction; O, occipital lobe; P, parietal region; F, frontal lobes; bs, brain stem including medulla and pons; mb, midbrain; t, thalamus; c, caudate nucleus; rev, spasm reverses; imp, spasm improves; spasm/prun, middle crebral artery spasm with posterior cerebral artery pruning; DWI, diffusion-weighted image characteristics; n/o, DWI not obtained with MR imaging study; Neg, no evidence of restricted diffusion to suggest cytotoxic edema; Neg*, no restricted diffusion in the majority of vasogennic edema with focal region of restricted diffusion and hemorrhage noted; Res, vasogenic edema completely resolved on follow-up imaging studies; Res*, vasogenic edema resolved with minor persistent abnormal signal in region of previously noted restricted diffusion, infarction, or focal hemorrhage; Resolving, resolving vasogenic edema on follow-up imaging studies or resolving clinical symptoms related to PRES; Resolved, clinical symptoms at PRES neurotoxicity resolved; MAP, mean arterial pressure.