Parameters For A Normal Dynamic Image

Recorded for 12 seconds & the system automatically selects the optimum cycle (manual selection is also available)  Size & Shape:    The lungs are almost equal in size & bean shaped    Contour is uninterrupted & smooth Progression & Regression:    Progression of the image is defined by an increase in        size from one frame to the next    Regression of the image is defined by an decrease in         size from one frame to the next    A normal image displays consistent progression & regression Breathing Cycle - Energy Graph & Intensity Indicator:    Inspiration displays higher intensity & flow   Expiration displays lower intensity & flow Dynamics:   Vibration energy moves vertically & centrifugally   The vibration energy then develops in the opposite direction   Pattern occurs in each lung (right & left)   Movement is synchronized & orderly in each lung     (right & left)

Parameters For A Normal Image At The Maximal Energy Frame (MEF)
	Recorded at peak of inspiration & displaying maximal energy  Size & Shape:    Almost equal in size & bean shaped    Contour is uninterrupted & smooth Area:    Two-dimensional reflection   Intensity:    Equal darkness in grey-scale    Highest intensity - darkest grey-scale

Parameters For The Quantitatvie Lung Data (QLD) For A Normal Image
	Calculated throughout the 12 second recording  Contribution:     Divided in signal contribution per V-Array zone     Higher intensity / grey-scale = % contribution     Lower intensity / grey-scale = % contribution     % Contribution = 100%