Help to choose the graduate course in USA

Hi,

I have recently completed my BPTh from Mumbai University, India. I am looking forward to pursuing my Master's in USA. My GRE and Toefl is in next month. I am still confused between the three degrees that the universities in US offer DPT/MPT/MSPT. I would like to know what is the difference between these three and also want to understand what is the good choice of course work to opt for considering the job market in USA. Please help me with these questions. Thank you