1.Application of bone suppression imaging in the diagnosis of occupational pneumoconiosis
XIE Yuan lin QING Geng geng MA Le HUANG Li ming DENG Xue ning CHEN Wei bo ZOU Shan CHEN Wei guo
China Occupational Medicine 2022;49(05):572-
Objective ( )
To explore the application value of bone suppression imaging BSI in the diagnosis of occupational
( pneumoconiosis) Methods -
pneumoconiosis hereinafter referred to as " " . A total of 330 chest films of high kV digital
( )
radiograph DR of patients with suspected pneumoconiosis were selected by convenient sampling method. BSI is applied to the
, , , ,
chest films and the differences of small opacity shape small opacity aggregation the number of large opacity lung areas small
( ),
opacity profusion and diagnostic stage of pneumoconiosis were analyzed by simple DR reading DR group simple BSI reading
( ) ( ) Results
BSI group and DR and BSI combined reading combined group . There was no significant difference in the
distribution of small shadows and the detection rate of small shadows aggregation and large shadows in pneumoconiosis among
( P ) ,
the three film reading methods all >0.05 . For the concentration distribution of each lung area there was statistically
(P< ),
significant difference between the DR group and the BSI group 0.05 but there was no statistically significant difference
, ( P )
between the DR group and the combined group and between the BSI group and the combined group all >0.05 . The results of
,
consistency analysis showed that the DR group and the BSI group and the DR group and the combined group had high
( , P<
consistency in the judgment of small shadow intensity in the lung region both weighted Kappa coefficient were 0.75 all
)
0.01 . There was a high consistency between BSI group and DR group and combined group and DR group in the diagnosis of
( , , P< ) ,
pneumoconiosis stage weighted Kappa coefficient were 0.77 0.79 all 0.01 . Compared with the DR group the diagnostic
,
rate of pneumoconiosis stage Ⅰwas significantly reduced and the diagnostic rate of pneumoconiosis stage Ⅱ was significantly
( P< ) ,
increased in the BSI group and the combined group all 0.01 . However there was no significant difference in the diagnosticrate of pneumoconiosis stage Ⅲ >0.05 . Both the BSI reading and DR and BSI combined reading can improve
,
the display of pneumoconiosis lesions to varying degrees and therefore can improve the diagnosis of pneumoconiosis. In
,
addition the identification and diagnosis of pneumoconiosis lesions in the BSI reading is comparable to that in the combined
,
group which has a good application value in the diagnosis of pneumoconiosis.