From: Serum calcitonin estimation in medullary thyroid cancer: basal or stimulated levels?
Assay | Format | Sample volume | Pretreatment | Within-run CV | Between-run CV | Measuring range | LLD |
---|---|---|---|---|---|---|---|
Cis-bio | RIA | 200µl | 30 min 56°C | 6.7% at 10.9 ng/L | 5.2% at 21.1 ng/L | 1.5 –1530 ng/L | 1.5 ng/L |
Diasorin | Automated chemi-luminescent | 150µl | NO | 2. 5% at 25 ng/L 3.1% at 160 ng/L | 5% at 25 ng/L 4.7% at 160 ng/L | 1.0 – 2000 ng/L | 4 ng/L |
Siemens | Automated chemi-luminescent | 200 µl | NO | 3.4% at 29 ng/L 2.3% at 200 ng/L | 4.2% at 29 ng/L 5.5% at 260 g/L | 2.0 – 2000 ng/L | 2 ng/L |
IBL | ELISA | 100 µl | NO | 2.8% at 37 ng/L 2.4% at 260 ng/L | 8.6% at 41 ng/L 6.3% at 167 ng/L | 1.3 – 790 ng/L | 1.3 ng/L |
DSL | IRMA | 150 µL | NO | 2.4% at 27 ng/L 5.1% at 390 ng/L | 9.0% at 24.3 ng/L 7.8% at 391 ng/L | 5 – 500 ng/L | 5 ng/L |