1. Densitometry was used to calculate peak particle diameters.

2. Dpysical essence and spectral characteristic of densitometry with method of spectral analysis, principle and mathematical formula of the computer colour matching density are discussed.

3. Densitometry: Science of measuring the light - stopping characteristics of film or filters.

4. Objective:To have an acoustic densitometry (AD)analysis about the relationship between doses and effects in experiment rabbit liver with second harmonic contrast imaging.

5. TLC densitometry of polyhydroxysteroids in biotransformation of steroids was established.

6. Objective: To assess the value of acoustic densitometry (AD) technique in evaluating innominate artery plaque to be a risk factor of cerebral infarction.

7. Methods: The telomeric repeat amplification protocol ( TRAP ) combined with densitometry and clinical examination were performed in leukemia patients.

8. Objective To explore the diagnostic value of quantitative acquisition densitometry ( AD ) in homogeneous hepatic adiposis.

9. Objective:To evaluate the renal cortex blood perfusion of acute renal failure(ARF)in rabbits using intravenous contrast ultrasound, power Doppler imaging(PDI)and acoustic densitometry(AD)techniques.

10. The expressions of both FGFR1 and FGFR2 increased gradually with kidney development shown by computerized densitometry, stereography and Western blot.