Article Figures & Data
Figures
- Fig 1.
Comparison of SPECT and CT in patients with mild traumatic brain injury.
- Fig 2.
SPECT (A) showing hypoperfusion in left frontal lobe in an 8-year-old male patient with normal plain head CT (B).
Tables
Total SPECT+ CT+ Frontal lobe 27 (42.2%) 10 (35.7%) 37 (40.2%) 14 (15.3%) Temporal lobes 22 (34.4%) 12 (43%) 34 (37%) 11 (12%) Basal ganglia and thalamus 21 (33%) 10 (28.6%) 31 (33.7%) 4 (4.4%) Parietal lobes 6 (9.4%) 2 (7.1%) 8 (8.7%) 5 (5.4%) Cerebellum 4 (6.3%) 1 (3.6%) 5 (5.4%) 2 (2.2%) Occipital lobes 3 (4.7%) 1 (3.6%) 4 (4.4%) 2 (2.2%) Note.— SPECT indicates single-photon emission computed tomography; MTBI, mild traumatic brain injury.
PTA+ PTA− LOC+ LOC− PCS+ PCS− No. of patients 30 62 51 41 26 66 SPECT+ 24 (80%) 34 (54.8%) 38 (74.5%) 20 (48.8%) 22 (84.6%) 36 (54.6%) CT+ 13 (43.3%) 18 (29%) 24 (47.1%) 7 (17.1%) 14 (53.9%) 17 (25.8%) SPECT lesions Temporal lobe 19 (63.3%) 15 (24.2%) 22 (43.1%) 12 (29.3%) 18 (69.2%) 16 (24.2%) Frontal lobe 14 (46.7%) 23 (37.1%) 26 (51%) 11 (26.8%) 12 (46.2%) 25 (37.9%) Basal ganglia and thalamus 11 (36.7%) 20 (32.3%) 21 (41.2%) 11 (26.8%) 12 (46.2%) 19 (28.9%) Note.— SPECT indicates single-photon emission computed tomography; PTA, posttraumatic amnesia; LOC, Loss of consciousness; PCS, postconcussional syndrome.
- Table 3:
Number of patients showing SPECT- and CT-positive findings compared to duration of injury
Duration between Head Injury and SPECT Imaging <24 h 24–48 h 48–72 h No. of patients 30 26 36 SPECT+ 17 16 25 CT+ (all patients were imaged within 12 h of injury) 10 7 14 Note.— SPECT indicates single-photon emission computed tomography.
Glasgow Coma Score 13 14 15 No. of patients 12 25 55 SPECT+ 11 18 30 CT+ 8 12 11 Note.— SPECT indicates single-photon emission computed tomography.
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