ArticleSovremennye tekhnologii v meditsine2025
Development of L1 Vertebral Anthropomorphic Model for Densitometric Phantom Improvement.
Article in Sovremennye tekhnologii v meditsine, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
0 citing papers in PubMed.
No citing paper in PubMed yet.
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
7 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Materials and Methods: The vertebra was made using 3D printing by a digital model obtained from DICOM files of the abdominal CT examination. The phantom construction consists of three layers of different X-ray density. In the base made of photopolymer resin there is a cylindrical recess filled with a plastic mixture to imitate the normal state of the spongy substance (high density), osteopenia (moderate density decrease) and osteoporosis (significant decrease in density). Mineral density is regulated by changing β-tricalcium phosphate concentration. The cortical layer is modelled by applying metal foil on the base surface. Results: In X-ray tube voltage of 120 kV, the mean square deviations of the measured X-ray density values of the vertebral body, spongy substance and the cortical layer were 12.40, 3.96, and 57.23 HU, respectively. The mineral density assessment of the spongy substance for three X-ray tube voltages (100, 120, 140 kV) showed the mean absolute error to be 7.4 mg/ml, and the mean relative error - 7.3% (variation coefficient). The correction coefficient equal 7 mg/ml was used to correct the values, and after using the coefficient the mean absolute error decreased up to 0.4 mg/ml, and the mean relative error - up to 0.4% (variation coefficient). The relative measurement errors of the ventral, medial and dorsal vertebral body dimensions were 3.6, 2.7, and 2.9%, respectively. Conclusion: The methods used in developing a vertebral model can be applied in modeling the entire range of the mineral density of bone spongy substance: from osteoporosis to norm. The developed model demonstrates high stability of X-ray characteristics and anatomical accuracy; therefore, it can be used for equipment calibration, quality control of diagnostic systems, and in the training process to demonstrate the bone structure changes.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.