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Accuracy of Asynchronous Quantitative Computed Tomography by Phantom Modelling

Abstract

It is important to confirm the accuracy and reproducibility of densitometric studies of the assessment of mineral density, therefore, as part of the introduction of asynchronous quantitative computed tomography (QCT) on the basis of several Moscow medical organizations, it is necessary to evaluate its effectiveness, including the study of accuracy and reproducibility. To perform these works, anthropomorphic phantoms are used. In this work, the phantom developed by the authors is used. Assessment of accuracy indicators was carried out in three medical organizations, the results were calculated relative error, coefficient of variation. High reproducibility of the results of evaluation of bone mineral density by the asynchronous QCT method (0,06-0,86 %) was demonstrated. It was shown that the simulation of subcutaneous fat leads to an underestimation of the results of QCT. When using the optimal reconstruction filter, the relative error was in the range from -3,9 to 4,3 %.

About the Authors

A. V. Petraikin
Research and Practical Clinical Center for Diagnostics and Telemedicine Technologies of Moscow Health Care Department
Russian Federation


L. A. Nisovtsova
Research and Practical Clinical Center for Diagnostics and Telemedicine Technologies of Moscow Health Care Department
Russian Federation


K. A. Sergunova
Research and Practical Clinical Center for Diagnostics and Telemedicine Technologies of Moscow Health Care Department
Russian Federation


E. S. Akhmad
Research and Practical Clinical Center for Diagnostics and Telemedicine Technologies of Moscow Health Care Department
Russian Federation


D. S. Semenov
Research and Practical Clinical Center for Diagnostics and Telemedicine Technologies of Moscow Health Care Department
Russian Federation


F. A. Petryaykin
Lomonosov Moscow State University
Russian Federation


V. A. Gombolevsky
Research and Practical Clinical Center for Diagnostics and Telemedicine Technologies of Moscow Health Care Department
Russian Federation


A. E. Nikolaev
Research and Practical Clinical Center for Diagnostics and Telemedicine Technologies of Moscow Health Care Department
Russian Federation


D. S. Koshurnikov
ГБУЗ «Госпиталь для ветеранов войн № 3 Департамента здравоохранения города Москвы»
Russian Federation


Yu. I. Titova
Scientific and Research Institute of Traumatology, Orthopedics and Neurosurgery of Saratov State Medical University named after V.I. Razumovsky
Russian Federation


S. P. Morozov
Research and Practical Clinical Center for Diagnostics and Telemedicine Technologies of Moscow Health Care Department
Russian Federation


A. V. Vladzymyrskyy
Research and Practical Clinical Center for Diagnostics and Telemedicine Technologies of Moscow Health Care Department
Russian Federation


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Review

For citations:


Petraikin A.V., Nisovtsova L.A., Sergunova K.A., Akhmad E.S., Semenov D.S., Petryaykin F.A., Gombolevsky V.A., Nikolaev A.E., Koshurnikov D.S., Titova Yu.I., Morozov S.P., Vladzymyrskyy A.V. Accuracy of Asynchronous Quantitative Computed Tomography by Phantom Modelling. Radiology - Practice. 2019;(6):48-59. (In Russ.)

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ISSN 2713-0118 (Online)