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At least 127 records · Page 7Linked to original sources
PubMed1987

Differentiating tumours of the deep and superficial lobes of the parotid gland by computed tomographic sialography.

Parotid computed tomography (CT) combined with sialography is an established method of determining intrinsic from extrinsic tumours in and around the parotid gland. However, differentiation of deep from superficial lobe tumours lacks reliability. Various anatomical landmarks including Stensen's duct, the retromandibular vein, the styloid process, the posterior belly of the digastric muscle and more recently an arc 8.5 mm from the posterior border of the mandible have been used to predict the course of the facial nerve and hence divide the parotid into its deep and superficial portions. Our recent experience of CT in 17 cases of intrinsic parotid tumours and the results of surgery have been reviewed in an attempt to assess the reliability of these various landmarks. In 14 out of the 17 cases (82%) the relationship of the Stensen's duct to the tumour was well shown, and correct differentiation of deep from superficial lobe tumours could be made. We conclude that the relationship of the tumour to the Stensen's duct is most accurate in differentiating tumours of the deep and superficial lobes of the parotid.

Adenolymphoma↗
PubMed1975

Sialography with continuous measurement of pressure outside and inside the gland.

In almost any method of sialography the results depend on a sign given by the patient. In order to eliminate this very uncertain factor or to limit its effect, a procedure was established to determine the pressure in the gland after the injection of contrast medium, as well as the injection pressure during injection. The difference between injection pressure and gland pressure was minimized through the use of special cannulas. A special syringe was used. Pressure was recorded by a membrane transducer connected to electronic equipment. It appears that the pressures are below or about the same as the diastolic blood pressure. Pressure values do not correlate with the volumes injected. The standard deviation of the pressure is too large to make entirely superfluous the sign given by the patient; nevertheless, the method improves the quality and reliability of sialogram readings and extends the field of application to patients unable to give reliable subjective information.

Humans↗
PubMed1976

Application of xeroradiography in sialography.

Sialography was carried out in healthy volunteers and in patients with Sjögren's syndrome. A comparison was made between xeroradiography and conventional radiography. Superior images were obtained with xeroradiography and this technique also tended to reveal glandular structure which was obscured by overlying bone when using conventional radiography. In addition to this, there was considerably greater latitude in exposure and the skin dose of radiation using xeroradiography was slightly less.

Humans↗
PubMed1977

Continuous infusion pressure-monitored sialography.

A technique for sialography has been developed which gives reproducible radiographs. By employing a constant infusion pump to deliver 0.2 ml of contrast medium per minute the patient does not experience pain and glandular detail is not obscured due to overfilling. Aqueous and oily contrast media may be used satisfactorily but there is greater latitude in times of exposure with the aqueous media.

Contrast Media↗
PubMed1997

Submandibular gland duct endoscopy. Diagnostic value for salivary duct disorders in comparison to conventional radiography, sialography, and ultrasonography.

The purpose of this study is to evaluate the usefulness of endoscopy as a procedure for the diagnosis of submandibular gland duct disorders. Endoscopy of the submandibular glands was performed on 12 patients with symptoms of obstructive sialoadenitis to identify the cause of obstruction. The endoscopic findings were then compared to those of diagnostic procedures such as conventional radiography, sialography, and ultrasonography. Six normal subjects also underwent endoscopy to better understand the normal findings of the duct system. Endoscopy demonstrated salivary gland calculus in 5 of 12 patients, which was revealed as filling defects on sialograms and as strongly echogenic structures on ultrasonograms in 4 of the patients. Endoscopy revealed secretion plugs, secretion plaques, and/or stenosis, which could not be seen by any other diagnostic procedures in 5 patients, as the cause of recurrent swelling in all 7 patients not demonstrating sialolith. Abnormal findings of the duct wall such as vasodilatation, fibrosis, edema, or erythema were seen in four patients, three of whom exhibited dilatation of the duct system on sialograms. In four patients, a decreasing internal echo level of the gland was seen on ultrasonograms. Our initial results for submandibular gland duct endoscopy thus appear to be promising.

Adult↗
PubMed1989

[A comparison of digital luminescence radiography and conventional radiodiagnosis in sialography].

In 25 patients sialographies were obtained by both conventional film-screen system combinations and computed radiography (CR), the digital exposure dose being 50% of the conventional one. In CR two differently post processed images were obtained from one x-ray exposure: one "conventionally" processed image resembling a conventional film-screen system combination and a complementary "enhanced" image showing a higher edge enhancement at the same spatial resolution. CR proved to be equivalent to conventional radiography despite the reduction in exposure dose. Using high edge enhancement the peripheral glandular ducts as well as the central ducts superimposed by bony structures were optically accentuated. However, diagnostical information exceeding the conventional film-screen system combination was not obtained by CR. Artefacts by post processing procedures relevant for diagnosis were not observed.

Adenoma↗
PubMedDate not supplied

MR imaging of Sjögren syndrome: correlation with sialography and pathology.

Magnetic resonance (MR) imaging of the parotid glands were performed in 13 cases of Sjögren syndrome to assess if there are any typical MR features. The MR findings were compared with sialography and pathology results. Signal intensity ratios of parotid (minus background noise) to skeletal muscle (minus background noise) were measured in these 13 cases as well as in 10 normal controls. Both T1- and T2-weighted images showed multiple hypointense mixed with hyperintense foci (salt-and-pepper appearance) throughout the glands in the six Sjögren cases of intermediate severity (46%), inhomogeneous glands in five cases with early or advanced disease, and homogeneous glands in the remaining two cases with the earliest stage of disease. Mean intensity ratios in T2-weighted pulse sequences in patients with salt-and-pepper appearance and inhomogeneous glands were significantly smaller than those in normal controls (p less than 0.05 and p less than 0.001, respectively). Pathologic studies tend to indicate that focal lymphocytic aggregates associated with increased interlobular fibrosis are probably responsible for the hypointense foci and the decrease in intensity ratios. We think that the salt-and-pepper appearance is suggestive of Sjögren syndrome and that the decreased intensity ratios combined with a typical clinical picture may lead to a highly probable diagnosis of this disorder.

Adult↗
PubMed1993

Interventional sialography using digital imaging.

We review our results in treating 5 patients with parotid duct pathology (3 stenoses, 2 calculi), using digital subtraction imaging for sialography, and standard interventional techniques using balloon catheters. Good technical results were achieved in all 5 patients. We describe our techniques and how they were modified to overcome various difficulties.

Catheterization↗
PubMed1975

Sialography: a simplified technique.

A simplified method of sialography is described. A wedged catheter tip positioned in the duct prevents backward leakage of contrast material into the oral cavity.

Humans↗
PubMed1977

Subtraction sialography.

Subtraction sialography is described and demonstrated to be a simple yet helpful technique in evaluating the salivary glands. The improved visualization of the ductal system is demonstrated.

Humans↗
PubMed1977

Use of the Seldinger technique in sialography.

The authors describe a modified Seldinger Technique for sialography which is especially helpful in cannulization of the submandibular ducts. This procedure was successful in 2. of 30 patients tested.

Catheterization↗
PubMed1978

Sialography made easier.

The author describes a new method of cannulating stenotic salivary ducts. Due to its speed, simplicity, availability of materials, and rapid mastery by radiological technicians, it is recommended for routine use in sialography.

Catheterization↗
PubMed1979

Computed tomography of the parotid gland during contrast sialography.

By performing CT scanning during contrast sialography, tumors within the parotid gland can be shown and their configuration in relation to the remaining normal salivary gland and surrounding structures can be appreciated. This permits better evaluation of the relationship of the tumor to the facial nerve, possible extension of tumor beyond the gland, and benign versus malignant growth characteristics

Humans↗
PubMed1991

Parotid sialography with a new Zonarc program.

The use of panoramic zonography with the Zonarc-MLA and LAT-PA program for parotid sialography is presented. It provides curved layer tomograms, and shadows of the bony structures are therefore not disturbingly superimposed on the image of the sialogram. The visibility in the retromandibular region tended to be better. Radiation doses in plain film radiography are up to 60 times higher than in Zonarc radiography.

Aged↗
PubMed1985

CT sialography: utilising acinar filling.

The technique of computed tomographic sialography (CTS) has been demonstrated to be valuable in the diagnosis of masses of the major salivary glands. Forty-one CT sialograms were performed in 35 patients using acinar glandular filling with oily contrast material. Twenty-two mass lesions and seven cases of inflammatory disease were identified. There were two instances of mild parotitis following the procedure. CTS performed with this technique was found to be a safe, accurate method for evaluating salivary gland masses.

Contrast Media↗
PubMed1987

Infantile recurrent sialectatic parotitis: the role of sonography and sialography in diagnosis and follow-up.

The results of a clinical, sonographic and sialographic study in 10 children (aged 4-10 years) with recurrent sialectatic parotitis are presented. Alteration in the sonographic pattern of the parotid glands, consisting of multiple hypoechogenic areas in the parenchyma, were found in four cases; milder nonhomogeneity was seen in four cases, and an almost normal pattern in two cases. Sonographic follow-up in two children showed a parallel reduction in non-homogeneity with symptomatic improvement. A probable therapeutic action following sialography using fat-soluble contrast medium was observed in four of the 10 children. The familial nature of the disease, which has not previously been described, is documented.

Child↗
PubMed2004

Lipiodol UF retention in dental sialography.

Lipiodol is a lipid based contrast medium and is very useful in sialography. It gives very fine images and clearly shows the details of the gland. It is viscous and has a relatively high iodine content. However, lipiodol UF drops sometimes remain in the salivary gland and in the adjacent tissues for a long time and may cause irritation. We report a case where lipiodol UF leaked from Stensen's duct and was not resorbed after a period of 70 months.

Adult↗