Results 31 to 40 of about 66,656 (272)

Accuracy of Patient-Specific Organ Dose Estimates Obtained Using an Automated Image Segmentation Algorithm [PDF]

open access: yes, 2016
The overall goal of this work is to develop a rapid, accurate, and automated software tool to estimate patient-specific organ doses from computed tomography (CT) scans using simulations to generate dose maps combined with automated segmentation ...
Coradi, Thomas   +4 more
core   +2 more sources

Deep learning based CT-to-CBCT deformable image registration for autosegmentation in head and neck adaptive radiation therapy [PDF]

open access: yesarXiv, 2021
The purpose of this study is to develop a deep learning based method that can automatically generate segmentations on cone-beam CT (CBCT) for head and neck online adaptive radiation therapy (ART), where expert-drawn contours in planning CT (pCT) can serve as prior knowledge.
arxiv  

A Rare Case of Parotid Gland Tuberculosis

open access: yesCase Reports in Pediatrics, 2021
Parotid gland tuberculosis is a very rare form of extrapulmonary tuberculosis, with less than 200 cases reported in literature. We describe a 10-year-old female who presented with a swelling in the left parotid region during the last month.
Deepshikha Singh, Sudhir Mishra
doaj   +1 more source

ORGAN-PRESERVING MICROSURGERY FOR PLEOMORPHIC ADENOMA OF THE PAROTID SALIVARY GLAND

open access: yesПроблеми екології та медицини, 2023
Of the total number of salivary gland tumors, the parotid gland is affected by the tumoral process in 76.4–90% of cases. Among benign tumors of the parotid gland, the most frequent tumor (61.2–90%) is pleomorphic adenoma.
D.V. Steblovsky
doaj   +1 more source

Negative-contrast neurography: Imaging the extracranial facial nerve and its branches using contrast-enhanced variable flip angle turbo spin echo MRI [PDF]

open access: yesarXiv, 2021
Background and Purpose: Various 'positive-contrast' neurographic methods have been investigated for imaging the extracranial course of the facial nerve. However, nerve visibility can be inconsistent with these sequences and may depend on the composition of the parotid gland, limiting consistent identification.
arxiv  

Mucoepidermoid carcinoma associated with osteosarcoma in a true malignant mixed tumor of the submandibular region [PDF]

open access: yes, 2015
True malignant mixed tumor, also known as carcinosarcoma, is a rare tumor of the salivary gland composed of both malignant epithelial and malignant mesenchymal elements.
Cerbelli, B   +4 more
core   +3 more sources

Ultrasonographic criteria for the major salivary glands: a perspective for the application of new technologies [PDF]

open access: yes, 2018
It emerges from the interesting recent article by David et al. (4) on high-resolution ultrasound is the first line examination for parotid gland diffuse disease and focal lesions, normally using grey-scale and color-Doppler ultrasound especially using
Messineo, Daniela
core   +1 more source

Lymphatic drainage patterns of head and neck cutaneous melanoma: does primary melanoma site correlate with anatomic distribution of pathologically involved lymph nodes? [PDF]

open access: yes, 2012
The aim of this study was to analyse patterns of metastatic spread from cutaneous head and neck melanoma, which are said to be highly variable.
Lukšić, Ivica   +3 more
core   +1 more source

Automatic identification of segmentation errors for radiotherapy using geometric learning [PDF]

open access: yesarXiv, 2022
Automatic segmentation of organs-at-risk (OARs) in CT scans using convolutional neural networks (CNNs) is being introduced into the radiotherapy workflow. However, these segmentations still require manual editing and approval by clinicians prior to clinical use, which can be time consuming.
arxiv  

Investigating heterogeneous PSMA ligand uptake inside parotid glands [PDF]

open access: yesPhysica Medica: European Journal of Medical Physics, 2024
The purpose was to investigate the spatial heterogeneity of prostate-specific membrane antigen (PSMA) positron emission tomography (PET) uptake within parotid glands. We aim to quantify patterns in well-defined regions to facilitate further investigations.
arxiv   +1 more source

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