Referral Patterns and Diagnostic Yield of Lung Scintigraphy in the Diagnosis of Acute Pulmonary Embolism

Table 4

Summary of V/Q scintigraphy results and comorbidities in pregnant versus nonpregnant patients.

	Pregnant	Nonpregnant
N	74	934
V/Q interpretation
N normal (%)	46 (62.2)	285 (30.5)
N low (%)	18 (24.3)	390 (41.8)
N intermediate (%)	5 (6.8)	153 (16.4)
N high (%)	5 (6.8)	106 (11.3)
N contrast contraindication (%)	2 (2.7)	316 (33.8)
N renal failure (%)	1 (1.4)	282 (30.2)
N contrast allergy (%)	1 (1.4)	56 (6.0)
N pulmonary hypertension (%)	1 (1.4)	68 (7.3)
N chronic lung disease (%)	1 (1.4)	97 (10.4)
N chronic heart failure (%)	0 (0)	86 (9.2)