Gain Focus Depth Dynamic Range Sector Width Frequency Describes the degree of amplification of the reflected signal that is receivedIf low gain is used, tissues that are poor reflectors will not be visualisedIf high gain is used noise is added to the image and it can...
Pressure Alignment Rotation Tilt Improves the image by reducing the distance to target structures through compression of subcutaneous tissuesCan be sued to compress veins or move structures out of the wayCare needs to be taken not to use excessive pressure which...
Type Description Use High-Frequency Probes 6-15 MHz rangeGood resolution (0.5 mm axial and 1.0 mm lateral)Reduced penetration (5-6 cm depth of field) Vascular accessSuperficial nerve blocks (supraclavicular and axillary brachial plexus, forearm, femoral...
Probes can be characterized according to their: Shape Arrangement of the piezoelectric crystals Frequency range Footprint In general they are classified as: Type Linear-Array Curvilinear (Convex) Array Phased Array Endocavity Description Crystals arranged in a linear...
A-Mode(Amplitude Mode) B-Mode(Brightness Mode) M-Mode(Motion Mode) Doppler Mode Simplest form of imaging using a single wave emitted from the probeScans a line through the body with echoes plotted as a function of depthRarely used in intensive care or anaesthesiaUsed...
