Esaote O-scan eXP, Руководство пользователя

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350004900 Rev. 07 5 / 8
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Manual Requirement
s
NOT SAFE FOR USE IN M.R. ENVIRONMENT - This indicates that a device
generates known risks in all M.R. environments.
The icon has a black text on a white background with a red border, and the
text has a red strike-through line; alternatively it may be shown in white
and black.
OPERATOR - The physician or technologist who operates the O-scan
system during patient examination.
OPERATOR PROFILE Summary of the mental, physical and demographic
traits of the intended OPERATOR population as well as any special
characteristics that can have a bearing on design decisions, such as
occupational skills and job requirements.
OPERATOR-EQUIPMENT INTERFACE - Means by which the OPERATOR and
the ME EQUIPMENT communicate.
ORIENTATION - A suggested standard orientation for the presentation of
MR images is:
1) Transverse. On image: patient's right on the left side on the image,
anterior on top.
2) Coronal. On image: patient's right to left side of image, head to top.
3) Sagittal. On image: patient's head to top, anterior to the left side of
image.
R (right), L (left), P (posterior), A (anterior), H (head), F (foot) should be
shown on the screen, as appropriate.
PERMANENT MAGNET - A magnet whose magnetic field originates from
permanently magnetized material.
PHANTOM - An artificial object of known dimensions and properties. Used
to test the O-scan system.
PHASE - In a periodic function (such as rotational or sinusoidal motion),
the position relative to a particular part of the cycle.
PRIMARY OPERATING FUNCTION - Function that involves OPERATOR
interaction that is either frequently used or related to the BASIC SAFETY
or ESSENTIAL PERFORMANCE of the ME EQUIPMENT in NORMAL USE.
PULSE - Waveform signal that rises abruptly, maintains a relatively flat top
for an extremely short interval and then rapidly falls to zero.
PULSE 90° - RF pulse designed to rotate the macroscopic magnetization
vector 90° in space.
PULSE 180° - RF pulse designed to rotate the macroscopic magnetization
vector 180° in space.
PULSE SEQUENCE - Train of RF and gradient pulses used to excite the MR
response signal and encode it with spatial information.
RE - Acronym for Relative Enhancement indicating the relative captation
of the contrast agent.
RECEIVING COIL - Coil of the RF receiver: captures the MR signal.