Related Experiment Video
Updated: Jun 22, 2026

Ex Vivo Treatment Response of Primary Tumors and/or Associated Metastases for Preclinical and Clinical Development of Therapeutics
Published on: October 2, 2014
The densities of visceral organs and the extent of pathologic changes
Rufeng Bai1, Xiaojun Yu, Dian Wang
1Department of Forensic Science, Medical College of Shantou University, Guangdong, China.
Insights
This study introduces a new device to measure internal organ density, finding it correlates with pathologic changes like edema and fatty degeneration in autopsy samples. Organ density may help detect these common tissue abnormalities.
Area of Science:
- Pathology
- Medical Devices
- Biophysics
Background:
- Pathologic changes in internal organs, such as edema and fatty degeneration, can alter tissue properties.
- Accurate and non-invasive methods for assessing these changes are crucial for diagnosis and prognosis.
Purpose of the Study:
- To design and validate a novel device for measuring internal organ density.
- To investigate the correlation between measured organ density and histologically confirmed pathologic changes in autopsy specimens.
Main Methods:
- An integrated volume-density meter was used to measure the density of hearts, livers, lungs, and brains from 169 autopsy cases.
- Organ samples were categorized into intact and pathologic groups, with pathologic changes classified into three stages (slight, intermediate, severe edema/fatty degeneration).
Main Results:
- Significant differences in density were observed between intact and all subgroups of pathologic organs.
- A close correlation was established between organ density measurements and the extent of pathologic changes, including edema and fatty degeneration.
Conclusions:
- Measured organ density serves as a valuable external parameter for identifying and quantifying internal organ pathologies.
- The developed device and methodology show potential for aiding in the assessment of tissue abnormalities like edema and fatty changes.
Abstract:
In this study, we designed a new device to measure the density of internal organs and correlated with their pathologic changes. The densities of hearts, livers, lungs and brains from 169 autopsy cases were measured with different extent of pathologic changes by an integrated volume-density meter. All samples were divided into 2 groups: intact and pathologic groups. The extent of pathologic changes was classified into 3 stages: slight edema, intermediate edema, severe edema (or severe fatty degeneration only for livers) according to the histologic features. Results show that there were significant differences between each subgroup and intact group and the density was closely correlated with pathologic changes. Therefore, the external parameter of density might offer some clues to its pathologic changes, such as edema and fatty changes.
Related Concept Videos
Assessment of the Abdomen III: Palpation
Ultrasonography
During an ultrasonography procedure, a handheld device called a...
Density
Gross Anatomy of the Liver
Located under the diaphragm, the liver is almost entirely ensconced within the rib cage, providing it with substantial protection. Except for the superior most bare area, the liver's surface is covered...
Veins as Blood Reservoirs

