الفهرس 
INTRODUCTIONOnly 14 pages are availabe for public view
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Abstract
The aim of our work was to show the importance of MRI sialography in diagnosis of salivary gland ductal diseases.
The study was conducted on forty five patients who presented to Alexandria University Hospitals with complaints attributed to salivary gland ductal diseases.
All the patients were subjected to:
1- Thorough history taking.
2- MRI examination using 3-T MR imaging system (Ingenia, Philips Medical Systems, Best, The Netherlands). High resolution T2 3D DRIVE was utilized. The parameters used were:
TR/TE = 2000 ms/200 ms, slice thickness = 0.5 mm. The examination period: 2 min 20 sec with parallel imaging (SENSE) by using sense neurovascular head and neck coil 16 channels. The images were aquired in the axial plane and viewed reconstructions in axial, sagittal and coronal planes on the workstation. Axial T2-weighted images: (500/14/2 [TR/TE/excitations]) images were obtained by use of fast spin-echo sequence. The section thickness was 4 mm for all sequences. The short inversion time–inversion recovery (STIR) sequence also was used to suppress fat components (2000/14/ 160/2 [TR/TE/inversion time/excitations]). MR imaging was utilized using a 256x256 matrix with no interslice gap. No contrast material was used.
3- Complementary non-contrast CT in patients with suspected sialolithiasis.
4- Evaluation of imaging including, measurements of stone sizes, ductal diameters, distances required by operating physicians, ductal defects, sizes of intraglandular ductal dilatations and sizes of sialoceles.
5- Management feedback which included the type of treatment of management procedure undergone.
The most common presenting symptom in our patients was intermittent pain and swelling, especially related to meals, and less commonly xerostomia and pus discharge.
Our cases included twenty five patients with sialolithiasis, six patients with ductal strictures, five patients with Sjogren’s disease, four patients with ductal sialoceles, two patients with juvenile recurrent parotitis and one ductal polyp. Two of our cases showed no salivary ductal pathology, where our investigations proved crucial for exclusion of salivary gland involvement.
Our heavy T2 3D DRIVE sequences provided excellent visualization of the ductal system allowing for accurate diag