Tempo Healthcare have a new browser based DICOM viewer, Tempo View. It is designed for ultrasound and optimised for echocardiography with fast cineloop loading and stress view. Your images are stored locally, no need to worry about the security of the cloud, but they can still be accessed remotely via the internet on any device. It's designed with collaboration in mind allowing secure sharing of selected studies.
Tempo View is affordable and designed for the small private practice market.
They offer free trials. For more info visit tempohealthcare.com