Premium
ULTRASONOGRAPHY AND COMPUTER TOMOGRAPHY IN ORBITAL DIAGNOSIS
Author(s) -
FLEDELIUS HANS C.,
GYLDENSTED CARSTEN
Publication year - 1978
Publication title -
acta ophthalmologica
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.534
H-Index - 87
eISSN - 1755-3768
pISSN - 1755-375X
DOI - 10.1111/j.1755-3768.1978.tb06639.x
Subject(s) - exophthalmos , medicine , radiology , orbit (dynamics) , tomography , orbital diseases , computed tomography , ultrasonography , computed tomographic , engineering , aerospace engineering
A report is given on a series of 162 patients referred for ultrasound examination (US, A‐mode) due to orbital disease. 101 also had computerized tomography (CT, Emi scanner Mark I, 160 times 160 matrix, 8 mm sections), the results of which were emphasized in a recent publication (Gyldensted et al. 1977). The present approach is primarily clinical. With histopathological confirmation in only 40% of the cases, it is difficult to give exact values for diagnostic accuracy, but it appeared to be above 90% for CT, and close to this value for US (depending on, of course, how specified the diagnostic predictions were). Dysthyroid ophthalmopathy (DO, orbital Graves' disease, endocrine exophthalmos) was the most frequent cause of unilateral protrusion (24 cases). In some such cases “tumour‐positive” CT scans represent a diagnostic pitfall, unless the examiner is familiar with the clinical features of DO. In the present series, for example, one of the DO cases had trans‐cranial exploration of the orbit. The two — indeed valuable — non‐invasive methods (CT and US) should be assessed in combination, and also combined with the classic clinical evaluation of the patient.