Deep Vain Thrombosis test center.

I am from Bangalore.My wife was suffering calf mussel pain I went to RxDx Kadugodi branch yesterday (30th sep) and doc asked to get the duppler test done for DVT. And there we found she has a major DVT in femoral and super femoral veins. RxDx doc suggested me to consult with a vascular sergeon. Today we went to Manipal Whitefield and doc was not happy with the previous report. We again get the same duppler test done in Manipal. There report is normal she don't have any DVT at all . Now we are confused. I want to be 100% sure because DVT is very serious condition . Please suggest the best lab in Bangalore where duppler USG is done for DVT. Please find the attached report of RxDx and Manipal. Please advice .. Thank u !