The performance of both WLAN and 3G networks can be easily biased by traffic and other network conditions, since commercial networks have been utilized in both cases. Also, the response time of the Amazon S3 Cloud service can play an important role on the total transmission time. However, the acquired results can be considered as indicative since the experiments reflect a real case scenario where the specific service and commercial wireless networks are utilized in order to transmit medical data. In addition, the time needed to decode and present the specific images used in the experiments has been measured. For the HTC G1 mobile phone used, the time needed by @HealthCloud to display uncompressed CT images at a resolution of 512x512 pixels was 0.52 sec, compressed CT images with JPEG2000 coding at a resolution of 512x512 pixels was 4.53 sec. The time needed to decode OT images compressed with JPEG2000 at resolution of 3072x2048 was 21 sec. and 7.5 sec. for a sequence of 10 ultrasound images of 600x430 pixels.