The firm said it secured a record 14 new contracts of T2Dx instruments in the fourth quarter, which was at the high end of its guidance for the second half of 2018.
The company said its testing services revenues for the quarter rose nearly 120 percent year over year.
The firm will expand on its MSI assay for use in immunotherapy while developing liquid biopsy assays to monitor patients post therapy and for recurrence.
The firm missed the consensus Wall Street estimate on the bottom line, even as its ePlex analyzer Q4 revenues more than doubled year over year to $12.1 million.
The company said test volume for its Cologuard colorectal cancer test rose 66 percent during the quarter to 292,000.
The firm's diagnostics and genomics group saw a 13 percent year-over-year revenue increase in the first quarter.
The firm said net product revenues fell 11 percent year over year in the fourth quarter.
Excluding a loss of business to LabCorp, total revenue increased 22 percent year over year in the fourth quarter, Luminex said.
Qiagen's Q4 revenues of $403.2 million fell short of the consensus analyst estimate though its adjusted EPS of $.40 was in line with Wall Street expectations.
Organically, the diagnostics segment was up 14 percent. Overall, the company's revenues grew 18 percent year over year during the quarter.