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STEPS TO MAKING A TECHNIQUE CHART.

1. Grid-Thorax

Use an average-sized dog (i.e. Lab, German Shepherd, etc.) for all measurements, unless otherwise specified.
Use a dog of average flesh (i.e. not too fat or too thin).
Take a lateral measurement across the chest at the widest point.
Find the above measurement on your technique chart.
Underneath that measurement, set your KVP at 95 (a value in the middle of your ideal KVP parameters for thorax).
Fill out your chart according to the KVP per CM increments shown in Chart 2.
G. Once your KVP values have been assigned, shoot three chest films at different MAS values (you may begin with .8, 1.6 and 3.2, for example). Select the MAS value at 95 KVP that leaves you with the nicest film. If all exposures are overexposed, cut all MAS values in half and repeat fiims. If all exposures are underexposed, double all MAS values and repeat films until a correct exposure is found.

2. Grid-Abdomen

3. Grid-Spine

This section will also work for femur, humerus, shoulder and pelvis.

4. Table-Top - Thorax, Abdomen, Spine

Use an average-sized cat for this section only.
On the grid chart for thorax, find the last KVP for 11 CM.
On the table-top chart, continue to decrease the KVP as the CM increments grow smaller. For example: if 74 KVP is at 11 CM, use 72 KVP at 10 CM, 70 KVP at 9 CM, etContinue to fill out your chart for thorax accordingly.
Measure the cat and set KVP accordingly.
Next take three exposures: one at half the MAS used for the average-sized dog thorax; next
reduce the MAS value by half again and take another exposure; then reduce the MAS by half
again and take a third exposurChoose the appropriate MAS. (Finding the proper MAS will
depend on the type of grid you are using.)
Repeat steps A-E for abdomen and spine.

5. Table-Top - Extremity Chart

Measure a normal dog carpus (average is 4-5 CM).
Underneath that measurement, set your KVP at 60 KVP (a value in the middle of your ideal KVP parameters for extremities).
Fill out your chart according to the KVP per CM increments shown in Chart 2.
Shoot films at three different MAS values. Continue selecting MAS values until an appropriate exposure has been made (you may begin with .2, .4, .8 MAS).

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