There are investigations showed that the majority of prostate glands are more bullet-shaped than ellipsoid. Anteroposterior diameter (height) may be measured in two planes-axial and sagittal. Transverse diameter (width) is defined as the maximal transverse diameter at mid-gland level, while longitudinal diameter (length) is defined as the distance from the proximal external sphincter to the urinary bladder. Prolate ellipse volume (cc) = height (cm) × length (cm) × width (cm) × π/6. It is calculated according to the following formula: Prolate ellipse volume calculation is fast, precise and practical for clinical application. Three commonly used prostate volume measurement techniques in transrectal ultrasonography (TRUS) are planimetry calculation, prolate ellipse volume calculation, and an ellipsoid volume measurement technique. Of all the different methods for measuring prostate volume, transrectal ultrasound is the most accurate. Overall, knowing prostate volume is important for understanding and managing prostate health in men, both healthy and those with prostate conditions. For example, a large prostate usually means an increased risk of developing BPH or prostate cancer. Information on prostate volume can be used to predict the likelihood of future prostate problems.For example, a decrease in the prostate volume may indicate the effectiveness of the treatment. Prostate volume can be used to monitor the effectiveness of a medical treatment.For example, larger prostate volumes may be more challenging to treat with certain therapies, such as prostatectomy (surgical removal of the prostate gland). ![]() Prostate volume can help guide treatment decisions.Knowing the volume of the prostate helps diagnose and evaluate the severity of prostate conditions, such as benign prostatic hyperplasia (BPH), prostatitis and prostate cancer.These measurements can be useful for a number of reasons: Prostate volume can be measured using a variety of techniques including digital rectal examination (DRE), transrectal ultrasound (TRUS) and magnetic resonance imaging (MRI). It is located below the bladder and surrounds the urethra the tube through which urine and semen are expelled from the body. The prostate is a gland located in the male reproductive system that produces fluid that is a component of semen. View all measurement unit conversion calculators on the same page (may not work with all browsers requires Iframe).Prostate volume is an important factor in the evaluation and management of men’s health, particularly for conditions that affect the prostate gland. The calculators require that your browser has java script enabled. Values lower than 0.001 will be displayed in the e-format e.g. Values of 10 000 or greater will be displayed in the e-format e.g. Values are given to seven significant figures ( the odd result may show 9's or 0's over running). All results shown will be equivalent values. To use the measurement conversion calculators simply enter a number value into the desired field and click calculate. For example, the specific gravity of water at 4 oC is 1.0 while its density is 1.0 gcm -3.ĬONVERSION CALCULATORS Convert between Different Units of Measurement Index of Unit Converters Because specific gravity is a ratio, it is a unitless quantity. Specific gravity is a ratio of the mass of a material to the mass of an equal volume of water at 4 oC. Sorry, your browser does not support JavaScript, which is needed to run this calculator Density, Specific Gravity Definition:ĭensity and specific gravity have very similar, but not quite identical definitions.ĭensity is the mass of material per unit volume. Note: conversions are only valid under the same conditions of temperature and pressure. DENSITY UNIT CONVERSION CALCULATOR DENSITY UNIT
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