Spectral Doppler Mode
7.1.3.2 Format
This controls serve for selection of either one of three formats (60/40, 50/ 50 and 40/ 60) for display.
Format: large (60/40)
Format: mid (50/50)
Format: small (40/60)
7.1.3.3 Frequency
This control serves for selection of the required transmit frequency for the actual gate position.
Normally one works with the transmit frequency which is corresponding to the ultrasound element’s
properties
[
Frequency mid
]
.
With a higher transmit frequency
[
Frequency high
]
the amplitude of the Doppler spectrum is displayed
larger (advantage: better display of lower flow velocities), but the penetration depth is reduced.
With a lower transmit frequency
[
Frequency low
]
the amplitude of the Doppler spectrum is displayed
smaller (advantage: display of higher flow velocities), however the penetration depth is increased
(higher sensitivity).
The transmit frequency is displayed in the Image Info area on the screen.
low:
The transmit frequency is lower than the middle frequency of the crystal.
mid:
The transmit frequency is the middle frequency of the crystal.
high: The transmit frequency is higher than the middle frequency of the crystal.
Information of frequencies review:
Probes and Biopsy
(chapter 20)
.
Remarks:
*
Changing the PW Frequency is only possible in write mode.
Voluson
®
730Pro - Basic User Manual
7-12
105831 Rev. 0
Содержание Voluson 730Pro
Страница 1: ... B BA AS SI IC C U US SE ER R M MA AN NU UA AL L GE Medical Systems Kretztechnik GmbH Co OHG ...
Страница 4: ...This page intentionally left blank Voluson 730Pro Operation Manual i 2 105831 Rev 0 ...
Страница 22: ...CONTENTS This page intentionally left blank Voluson 730Pro Basic User Manual 18 CONTENTS 105831 Rev 0 ...
Страница 23: ...General 1 General 1 2 Voluson 730Pro Basic User Manual 105831 Rev 0 1 1 ...
Страница 44: ...Safety This page intentionally left blank Voluson 730Pro Basic User Manual 2 20 105831 Rev 0 ...
Страница 112: ...2D Mode This page intentionally left blank Voluson 730Pro Basic User Manual 5 22 105831 Rev 0 ...
Страница 172: ...PD Mode This page intentionally left blank Voluson 730Pro Basic User Manual 9 14 105831 Rev 0 ...
Страница 262: ...Volume Mode This page intentionally left blank Voluson 730Pro Basic User Manual 11 78 105831 Rev 0 ...
Страница 290: ...Basic Measurements This page intentionally left blank Voluson 730Pro Basic User Manual 13 16 105831 Rev 0 ...
Страница 411: ...Biopsy Setup 19 Biopsy Setup 19 2 19 1 To Program a Biopsy Line 19 3 Voluson 730Pro Basic User Manual 105831 Rev 0 19 1 ...
Страница 414: ...Biopsy Setup This page intentionally left blank Voluson 730Pro Basic User Manual 19 4 105831 Rev 0 ...
Страница 442: ...Probes and Biopsy This page intentionally left blank Voluson 730Pro Basic User Manual 20 28 105831 Rev 0 ...
Страница 446: ...Connections 21 2 1 Main Module Voluson 730Pro Basic User Manual 21 4 105831 Rev 0 ...
Страница 458: ...Connections 21 2 11 ECG preamplifier MAN Connection Voluson 730Pro Basic User Manual 21 16 105831 Rev 0 ...