Model Number

PT380

4. technological features

4.1 Scanning Techniques

·Electronic linear scanning

·Convex scanning

·Annual array sector scanning

·Doppler pencil canning

4.2 Display modes

·Real time 2D(B-Mode) display modes

·Single 2D format

·Double 2D format

·Quad 2D format

·2D panoramic zoom(for mechanical probes only)

·2D scroll zoom(for LINEAR/CONVEX robes only)

·2D magnification

·TM(M-MODE) display modes

   ·Quasi Duplex 2D+TM:2D(50% screen)+TM(50% screen)

   ·Full screen TM

·CW display modes:

·Quasi Duplex 2D+CW:2D(50% screen)+CW(50% screen)

   ·2Di(icon)+CW

·CFM display modes

   ·Single CFM

   ·Quasi Duplex CFM+PW: CFM(50% screen)+PW(50% screen)

   ·CFMi(icon)+PW

·Colorized 2D,TM,PW＆CW mode display

4.3 Monitor

·Color monitor(10＂diagonal)

·640×480 pixels resolution

·PAL/NTSC compatible

·Direct management of brightness and contrast

·includes loudspeakers and control knob for volume

4.4 Keyboard

·Backlightening of all keys and knobs

·Ten software controlled function keys for menu selection

 Full alphanumeric capabilities

·Trackball for TM,CW/PW line steering, PW gate positioning, CFMcolor

 window resizing and positioning, focus point setting,

 anotation positioning ,measurements and cine-mode review

4.5 Screen Layout

·Patient identification field including patient name, clinic name, operator name,

time and date

·Technical data field showing all pertinent imaging parameters

·Measurement field displaying the last ten measurement results

·Menu field activated by the corresponding function key

·Freeze mode indicator

·Cine-loop memory index

·Annotation arrows and user defined annotations with rackball controlled

positioning

·Image orientation indicator

·Over 42 body-marks with scan plane indication

·Dot lines for TM/CM/PW beam orientation

·Real time ECG trace display

·Biopsy channel indication with automatic calibration of depth, probe type,

left/right guides and angle up/down orientation

·CFM window

4.6 Settings

·Default settings related to the medical application and transducer for image

quality optimization

·User settings memorized in the system as well as on a flash card

4.7 2D (B-MODE)

4.7.1 Scanning sector

·Angle: 40,45,60,75,90,110,140ºï¼†180º(probe dependent)

·Depth: 2cm-24cm, up to 10 depths(probe dependent)

·Nomianl frequency range:2-14MHZ(probe dependent)

4.7.2 Frame rate

·218fps

4.7.3 Signal processing

·Large bandwidth: 1.5-18MHZ

·Overall gain: 32 steps

·Time Gain Compensation: 5 sliders

·Dynamic f＆ocusing on reception

·Up to 4 focus zones on transmission

·Automatic adjustment of reception bandwidth for each depth

·Contour enhancement: 7 positions application dedicated

·Dynamic range control(reject): 4 positions to increase the contrast and reduce

weak echoes

·Frame filter: 4 non linear smoothing filters + OFF position

·Automatic Frequency Adjustment(A.F.A.) for standard and

less echogenic patient(Freq+/Freq-)

·Grey scale optimization thanks to 8 Gamma curves(probe dependent)

·Iris color system

4.7.4  Image presentation

·Single, Double and Quad image representation

·Freeze mode

·Left/Right

·Up/Down

·Video inversion

4.7.5 Resolution

·512×512 pixels on screen for 2D image display

·256 grey scale

4.7.6 Image memory

·Cine Mode: up to 282 images(probe and medical application dependent)

4.8 TM(M-MODE)

4.8.1 Signal processing

·Same as 2D mode

4.8.2 Imaging parameters

·Scrolling speed:

·2, 3, 5, 8 sec./screen (full screen)

·1, 1.5, 2.5, 4 sec./screen (2D+TM)

4.8.3 M Line Steering

·Trackball controlled over complete 2D sector

4.8.4 Display

·2D (50% screen) + TM (50% screen)

·Full screen TM

4.8.5 Image memory

·Cine mode

  ·up to 16 trace screens in full TM

  ·up to 5 trace screens in 2D +TM

4.9 Spectral Doppler Mode

4.9.1 Controllable modes

·PW operation

·CW operation

4.9.2 Signal processing

·Doppler frequencies: 2, 3, 4 and 8 MHz (probe dependent)

·Velocity range:

·PW: +/-1 kHz to +/- 10 kHz

·CW: +/-1 kHz to +/- 20 kHz Doppler shift (PRF/2)

·+/- 10 cm/sec. to +/- 3.5 m/s (PW), +/- 7.2m/sec.(CW), full scale, depending on probe and operating frequency

·High pass wall filter: 10 cut-off frequencies adjustable between 50 to 1000 Hz

·Grey scale optimization with 8 post-processing curves(probe dependent)

·Spectrum gain control: 11 selections between 0 and 30 DB

·120 dB dynamic range for best sensitivity·256 point FFT, computing time of 0.2 ms

·Doppler transmit power control: 8 selections between 0 DB and -21dB

·Doppler angle correction: from -80 to 80º

·Scrolling speed:

·2, 3, 5, 8 sec./screen (full screen)

·1, 1.5, 2.5, 4 sec./screen (2D + SP)

·Adjustable audio volume

·Iris colour system

4.9.3 PW gate

·PW gate adjustable for sample volumes between 1 and 15mm(8 selections)

·PW gate adjustable with the trackball between 0 and maxi depth of the image format

4.9.4 Display

·2D(50% screen) + Doppler(50% screen)

·2D icon + Doppler

·Base line shift: 9 positions for optimal signal display, avoiding spectrum aliasing

·V MEAN real time trace display

·V MAX + and V MAX – real time trace display

·Quasi duplex automatic refresh: 4 levels, according to scrolling speed

4.9.5 Image memory

·Cine mode

·up to 16 trace screens in full Doppler

·up to 15 trace screens in 2D + Dopler

4.9.6 Acoustic power output

·Fulfils acoustic output display standard

·Compiles with FDA acoustic output limits

·Automatic power output adjustment versus medical application for optimal Doppler performance(ALARA)

·User selectable Doppler transmit power attenuation: 8 positions between 0 and -21 dB

4.10 Color Doppler Modes

4.10.1 Scanning modes

·Steerable Colour Flow Mapping(CFM)

·Velocity and power mode

4.10.2 Sigal processing

·Multi frequency CFM mode: 2.5, 3, 5 and 6 MHZ (probe dependent and user selectable)

·High pass wall filter: 6 cut-off frequencies adjustable between 44 to 4400 HZ (dependent on velocity range)

·Colour gain control: 32 positions between 0 and 20dB

·4 positions colour persistence

·Velocity Ranges: from ± 125 HZ to ± 7.5 KHz Doppler shift (PRF/2) or ± 1.6 cm/s to ± 2.8 m/s full scale, depending on probe, frequency and medical application

4.10.3 CFM Window

·From 10% to full length of 2D sector, trackball controlled resize

·From 10% to full width of 2D sector, trackball controlled resize

·Trackball control of window position within 2D sector

4.10.4 Display

·Up to 128 colour shades, 8 levels of turbulence

·8 user selectable colour maps for optimum rendering of either low velocities, high

elocities, high velocities and turbulence

· positions of baseline shift

·Turbulence on/off

·Colour invert

·Chroms maps for optimum rendering of 2D echo structures

·Up to 64 frames cine memory

4.10.5 Acoustic output power

·Fulfils acoustic output display standard

·Compiles with FDA acoustic output limits

·Automatic power output adjustment versus medical application for optimal Doppler performance(ALARA)

·User selectable Doppler transmit power attenuation: 8 positions between 0 dB and – 21 dB

4.11 Digital archiving: KIPPRISM

·Digital archiving on Memory Card

·up to 32 images on 4 megabytes memory card

·up to 64 images on 8 megabytes memory card

·Transfer on Personal Computer via memory card(PCMCCIA standard, DOS format)