In prospective ECG-gated scans, the mean effective dose was 2.1 mSv (1.2-4.9 mSv), the mean kilovoltage was 95 kV (80-100 kV), the mean milliampere
second was 220 mAs (150-330 mAs), and the mean dose length product was 150 DLP (80-260 DLP).
An SGS-Thomson L297/L298 stepper motor bipolar chopper drive powers the NEMA 23 motors, with the current limit set to 300 milliampere
Assuming a 120-volt circuit under ideal dry conditions and 100,000 ohms resistance, the amperage passing through the skin could be calculated as 120/100,000=0.001 amperes (1 milliampere
If a high resistance connection is used, there may still be some noise current flow on the bus ground line between nodes, but it is typically on the order of a milliampere
The X-ray machine was a fifty milliAmpere
Picker field unit such as had been used by the army during World War II.
In a study of CT images of 15 consecutive patients with at least one colorectal polyp, two experienced observers studied images made at four radiation doses lower than the normal 100 milliampere
Based on observations in the 3 clinical settings after the installation of CR, radiography students noticed that peak kilovoltage (kVp) settings did not change but milliAmpere
second (mAs) settings were doubled when compared to mAs settings used for 400 speed film/screen exposures.
But this process gets tricky as the current levels fall into the low milliampere
range or below.
(61) A colleague agreed that the "problem of removing hairs in rich patients was not so great because they could pay and could pass through treatment without taking the full current of 1 1/2 milliamperes
." But when working with just "one-half a milliampere
," the operator "did not get along very fast, and with the poor people that counted.
Cranial Electrotherapy Stimulation (CES) involves the use of the Alpha Stim 100[R], a small hand held device that delivers small electrical pulses, one milliampere
(mA) or less, directly to the brain.
The switch is rated for 28 volts direct current (VDC) at a maximum of 50 milliampere