CHANGES IN THE OPTICAL DENSITY OF THE FIRST RIB IN WOMEN DEPENDING ON THE SHAPE OF CHEST AND AGE

The objective of our work was to study the dynamic variability of the optical density of the bone tissue of the first rib in women in different age groups without signs of osteoporosis.
Material and methods. The study was performed on chest scans of 78 women aged 20 to 50 years. Measurements on tomograms were carried out in the horizontal plane using the RadiAnt program. The results of osteometry were processed by statistical methods using the Statistica 13.0 package: the width of the two-sided confidence interval, the interquartile range, was estimated. The significance of differences was assessed by the Mann-Whitney test, at p≤0.05. Spearman's correlation analysis p≤0.05 was performed. On the tomograms, the optical density of the tubercle of the first rib, the anterior end of the bone part of the first rib, and the base of the coracoid process of the scapula were measured. All measurements were taken from women who were randomized by age and chest shape. The shape of the chest was determined using the Haller index.
Results. The density range of the tubercle of the first rib in women with different types of chests and of different age groups varied from +380 HU to +700 HU. Optical bone density at the level of the anterior end of the first rib ranges from +170 HU to +490 HU. The optical density of the base of the coracoid process showed values from +190 HU to +560 HU. The maximum number of correlations is observed in women with a gracile shape of the chest at the age of 31-50 years.
Conclusions. The areas of the first rib and the base of the coracoid process of the scapula that we have chosen can be prognostic reference points for studying osteoporotic changes, and should be the object of focused attention in routine and targeted CT examinations of the chest organs.

1. Ladygin K.V., Yashina I.N., Klochkova S.V., Ladygina A.I., Yashin F.D. Anatomicheskie osobennosti verkhnei apertury grudnoi kletki u muzhchin pervogo perioda zrelogo vozrasta. Sovremennye problemy nauki i obrazovaniya. – 2021.№ 6.

2. Ladygin K.V., Yashina I.N., Troshin A.V., Makrinov A.V., Ladygina A.I. Osobennosti stroeniya verkhnei apertury grudnoi kletki. Materialy mezhdunarodnoi nauchnoi konferentsii «Kliniko-morfologicheskie aspekty fundamental'nykh i prikladnykh meditsinskii issledovanii», 2021 g.

3. Lesnyak O.M. Aktual'nye voprosy diagnostiki i lecheniya osteoporoza u muzhchin v ambulatornoi praktike. Rossiiskii semeinyi vrach.2017.№1.-S.39-44.

4. Minasov T. B., Gafarov I. R., Ginoyan A. O.[i dr.] Otsenka parametrov mineral'noi plotnosti kostnoi tkani razlichnykh segmentov skeleta u patsientov ortopedicheskogo profilya. Meditsinskii vestnik Bashkortostana.2014.-T.9,№6.-S.61-63

5. Pashkova I.G Sravnitel'nyi analiz vozrastnykh izmenenii mineral'noi plotnosti u zhenshchin raznykh somatotipov. Uchenye zapiski SPbGU im. Akad. I.P. Pavlova.2011.T. XVIII, № 2.-S.109-110.

6. Perenyaikin A.V. i soavt. Osteodensitometriya: metodicheskie rekomendatsiya. Seriya «Luchshie praktiki luchevoi i instrumental'noi diagnostiki». M.;-2020. – S.57.

7. Khofer, Matias. «Komp'yuternaya tomografiya». Bazovoe ru-kovodstvo 2 (2008). Perevod s angliiskogo. Moskva. «MEDpress-inform 2 (2009).

8. Yashina, I. N., Ivanov A. V., Klochkova S. V. K voprosu gomo-logii v strukturnoi organizatsii kostei proksimal'nykh segmentov konechnostei cheloveka. Kurskii nauchno-prakticheskii vestnik Chelovek i ego zdorov'e.-2019.№1.-S.83-92.