Effectiveness of radiology modalities in diagnosing and characterizing brain disorders

Article Figures & Data

Table 1

- Characteristics of participants.

Variables	Frequency	Percentage (%)
Modality
CT	2105	66.7
MRI	1050	33.3
CT - BRAIN C-	1741	55.2
CT - BRAIN C-/+	364	11.5
MRI - BRAIN C-	287	9.1
MRI - BRAIN C+/-	763	24.2
Type of Patient (n=3155)
Emergency	951	30.1
In-patient	1220	38.7
Out-Patient	789	25.0
Unknown	195	6.2
Co-morbid (n=3108)
Defibrillation	26	0.8
Kidney disorders	250	8.0
Alzheimer’s disease	10	0.3
Asthma	80	2.6
Cancer	43	1.4
Heart Failure	198	6.4
COPD	40	1.3
Dementia	25	0.8
Diabetes	520	16.7
Hypertension	548	17.6
Dyslipidemia	670	21.6
ESRD	8	0.3
Hyperuricemia	16	0.5
Hyperthyroidism	67	2.2
Liver diseases	56	1.8
Thrombus	6	0.2
Seizures	12	0.4
Parkinsonian disease	4	0.1
CABG	13	0.4
Others	516	16.6
Reason for examination (n=3155)
Abnormal CSF	12	0.4
Blurred Vision	287	9.1
Decrease level of consciousness	231	7.3
Disorientation	232	7.4
Dizziness	543	17.2
Dysarthria	54	1.7
Headache	650	20.6
Left side numbness	55	1.7
Slurry speech	87	2.8
High blood pressure	620	19.7
Unknown	158	5.0
Others	226	7.2
Confirmation of brain disorders through scan (n=3155)
Confirmed brain disorders through scans	2426	77
Brain disorders not confirmed through scans	729	23

ESRD - end-stage renal disease, CABG - Coronary artery bypass graft surgery, CSF - Cerebrospinal fluid

Table 2

- Cox regression analysis of factors associated with adverse outcomes (HR: hazard ratio).

Predictors	Death or mRS ≥ 3		HR	95% CI	P-value
Predictors	n/N	%	HR	95% CI	P-value
Age (>=40)	3/41	7.3	2.0	0.34-12.48	0.427
Gender (male)	2/33	6.1	0.66	0.07-6.36	0.720
Sinus (multiple)	5/83	6	0.69	0.07-6.733	0.757
Concomitant cerebral bleeding (yes)	1/23	4.3	0.39	0.42-3.67	0.410
Finding (complete thrombus resolution)	2/17	11.8	2.14	0.14-42.38	0.609
Finding (partial Resolution)	1/24	4.2	0.86	0.05-13.24	0.887

Table 4

- Association of patient type with the confirmation of brain disorders

Patient type	Modality		P-value
Patient type	CT	MRI	P-value
Emergency
Confirmed brain disorders through scans	766	52	0.468
Brain disorders not confirmed through scans	133	0	0.468
In-patient
Confirmed brain disorders through scans	600	240	0.492
Brain disorders not confirmed through scans	217	163	0.492
Out-Patient
Confirmed brain disorders through scans	218	465	0.584
Brain disorders not confirmed through scans	50	56	0.584

Table 5

- Association of gender with the confirmation of brain disorders.

Gender	Modality		P-value
Gender	CT	MRI	P-value
Female
Confirmed brain disorders through scans	616	435	0.953
Brain disorders not confirmed through scans	381	146	0.953
Male
Confirmed brain disorders through scans	831	337	0.222
Brain disorders not confirmed through scans	277	132	0.222