BACKGROUND AND PURPOSE: In the preoperative period, it is very important to accurately differentiate high-grade gliomas from intracranial metastases, as treatment strategies vary. Hence we performed a meta-analysis to evaluate the sensitivity and specificity of peritumoural relative cerebral blood volume (rCBV) values derived from dynamic susceptibility contrast imaging (DSCI) in differentiating high-grade gliomas from intracranial metastases. MATERIALS AND METHODS: Between 2004 and June 2014, relevant studies were searched from the databases of Medline and Embase for analysis. A total of 3 eligible studies were included in this analysis. Statistical analysis was performed with Meta-Disc 1.4. RESULTS: A total of 136 patients included in the rCBV analysis: 79 with high-grade glioma and 57 with metastasis. The pooled sensitivity, specificity, positive likelihood ratio (+LR), negative likelihood ratio (-LR) and diagnostic odds ratio (DOR) for differentiating high-grade glioma from metastasis were 82% (95% CI 0.72-0.90), 96% (95% CI 0.88-1.00), 18.04 (95% CI 5.41-60.15), 0.19 (95% CI 0.12-0.31), and 90.20 (95% CI 23.10-352.27), respectively. The value of Cochran's Q of DOR was 0.78 (P = 0.6774), and I2 was 0.0%, revealing that no statistically significant between-study heterogeneity was found. CONCLUSIONS: The results of this present study clearly present that the peritumoural rCBV values derived from DSCI could be used in distinguishing high-grade gliomas from intracranial metastases in the preoperative.
BACKGROUND AND PURPOSE: In the preoperative period, it is very important to accurately differentiate high-grade gliomas from intracranial metastases, as treatment strategies vary. Hence we performed a meta-analysis to evaluate the sensitivity and specificity of peritumoural relative cerebral blood volume (rCBV) values derived from dynamic susceptibility contrast imaging (DSCI) in differentiating high-grade gliomas from intracranial metastases. MATERIALS AND METHODS: Between 2004 and June 2014, relevant studies were searched from the databases of Medline and Embase for analysis. A total of 3 eligible studies were included in this analysis. Statistical analysis was performed with Meta-Disc 1.4. RESULTS: A total of 136 patients included in the rCBV analysis: 79 with high-grade glioma and 57 with metastasis. The pooled sensitivity, specificity, positive likelihood ratio (+LR), negative likelihood ratio (-LR) and diagnostic odds ratio (DOR) for differentiating high-grade glioma from metastasis were 82% (95% CI 0.72-0.90), 96% (95% CI 0.88-1.00), 18.04 (95% CI 5.41-60.15), 0.19 (95% CI 0.12-0.31), and 90.20 (95% CI 23.10-352.27), respectively. The value of Cochran's Q of DOR was 0.78 (P = 0.6774), and I2 was 0.0%, revealing that no statistically significant between-study heterogeneity was found. CONCLUSIONS: The results of this present study clearly present that the peritumoural rCBV values derived from DSCI could be used in distinguishing high-grade gliomas from intracranial metastases in the preoperative.
Authors: Soonmee Cha; Edmond A Knopp; Glyn Johnson; Stephan G Wetzel; Andrew W Litt; David Zagzag Journal: Radiology Date: 2002-04 Impact factor: 11.105
Authors: F A Howe; S J Barton; S A Cudlip; M Stubbs; D E Saunders; M Murphy; P Wilkins; K S Opstad; V L Doyle; M A McLean; B A Bell; J R Griffiths Journal: Magn Reson Med Date: 2003-02 Impact factor: 4.668
Authors: David N Louis; Hiroko Ohgaki; Otmar D Wiestler; Webster K Cavenee; Peter C Burger; Anne Jouvet; Bernd W Scheithauer; Paul Kleihues Journal: Acta Neuropathol Date: 2007-07-06 Impact factor: 17.088