are positioned adjacent to the foot or calf to quantitatively sense filling of the subcutaneous micro vasuclar bed and generate a signal in response thereto such sensors are operatively connected to the neural network 30 to aid in the detection of deep vein thrombosis as well as a wide range of problems associated with ischemia and venous insufficiency and indicate the need for additional diagnostic testing a device operatively connected to the neural network can be provided for the patient to actuate when sensing pain in this respect the patient can manually input into the neural network to adjust the action of the pumping apparatus a biological information input not shown operatively connected to the neural network is also provided for the doctor utilizing the apparatus as will be discussed below the neural network utilizes such input to effect the operation of the pumping apparatus fig2 shows a control circuit 32 which is operatively associated with the neural network 30 and controls the pump apparatus 22 which in turn operates the boot 10 the neural network 30 is receptively connected to sensors 26 and 28 the control circuit 32 can be a commercially available microprocessor which uses the software system described herein below alternatively a commercially available microprocessor can be integrated with a commercially available neurocomputer accelerator board such as the one available from science applications international corp saic optionally a display can be connected to the control circuit or neural network such that the projected signal can be displayed the display would provide a visual aid to observe the various output signals such as pressure cycle.