ABSTRACT
Basing on the evidence obtained at examinations of 37 patients within 15-year follow-up after surgery on the maxillary and ethmoidal sinuses, the authors analyse potentialities and techniques of computed tomography in diagnosis of the developments in operated on paranasal sinuses. CT demonstrated advantages in examination of paranasal sinus walls and soft tissue alterations in them.
Subject(s)
Ethmoid Sinus/diagnostic imaging , Maxillary Sinus/diagnostic imaging , Postoperative Complications/diagnostic imaging , Adult , Ethmoid Sinus/pathology , Ethmoid Sinus/surgery , Follow-Up Studies , Humans , Male , Maxillary Sinus/pathology , Maxillary Sinus/surgery , Postoperative Complications/pathology , Postoperative Complications/surgery , Time Factors , Tomography, X-Ray ComputedABSTRACT
The paper specifies x-ray picture of surgically treated frontal and maxillary sinuses in uneventful healing without inflammation relapses (30 cases), in relapse of purulent (21 sinuses), purulent-polypous (15 sinuses), polypous (4 sinuses) sinusitis, in pain syndrome in the region of the operated on maxillary sinus projection (7 patients). X-ray symptoms of postoperative changes in the sinuses, varying in clinical course, are characterized.
Subject(s)
Frontal Sinus , Frontal Sinusitis/surgery , Maxillary Sinus , Maxillary Sinusitis/surgery , Otosclerosis/diagnosis , Postoperative Complications/diagnosis , Adult , Female , Frontal Sinusitis/diagnosis , Humans , Maxillary Sinusitis/diagnosis , Otosclerosis/etiology , Postoperative Complications/etiology , RecurrenceABSTRACT
This paper presents an X-ray scheme for calculating the depth of pterygoid canals required for accurate tomography. The scheme includes three lines: line A corresponds to the physiological horizontal line, line B is drawn, normally to line A through the tip of the nose, and line C is the perpendicular from line B to the upper third of the posterior wall of the pterygopalatine fossa. The length of line B plus 1 cm (thickness of external nose soft tissues) is the value to be determined. Twenty-six patients underwent X-ray examinations by an EDK-750B unit (70 kV, 150 mA, 1.65 s). In all cases 1-3 images were sufficient to obtain good visualization of the pterygoid canals.
Subject(s)
Sphenoid Bone/diagnostic imaging , Tomography, X-Ray , Humans , Maxilla/diagnostic imagingABSTRACT
Examination of macerated skulls has shown that optimal tomographic images of the Vidian nerve are obtained when the physiological horizontal plane is normal to the table plane and the X-ray beam is as narrow as possible. The section depth varies from 6.0 to 6.5 cm in brachycephalic and from 7.0 to 7.5 cm in dolichocephalic individuals. This positioning has been verified in 25 patients.