GKT Task 1 - amazonia.fiocruz.br

GKT Task 1 Video

Either your web browser doesn't support Javascript or it is currently turned off. Tassk the latter case, please turn on Javascript support in your web browser and reload this page. Management of GKT Task 1 schwannoma VS is based on tumour size as observed on T1 MRI scans with contrast agent injection. The current clinical practice is to measure the diameter of the tumour in its largest dimension.

It more info been shown that volumetric measurement is more accurate and more reliable as a measure of VS size. The reference approach to achieve such volumetry GKT Task 1 to manually segment the tumour, which is a time intensive task. We suggest that semi-automated segmentation may be a clinically applicable solution to this problem and that it could replace linear measurements as the clinical standard.

Using high-quality software available for academic purposes, we ran a comparative study of manual versus semi-automated segmentation of VS on MRI with 5 clinicians and scientists. We gathered both quantitative and qualitative data to compare the two approaches; including segmentation time, segmentation effort and segmentation accuracy.

Associated Data

There were some limitations, including algorithmic unpredictability and error, which GKT Task 1 more frustration and increased mental effort in comparison with manual segmentation. We suggest that semi-automated segmentation could be applied clinically for volumetric measurement of VS on MRI. In future, the generic software could be refined for use specifically for VS segmentation, thereby improving accuracy. The online version of this article Vestibular schwannoma VS is a here tumour of the vestibulocochlear nerve arising within the cerebellopontine angle, deep inside the cranium. Patients may present with a variety of symptoms including hearing loss, balance problems, vertigo, dizziness and headache among others [ 29 ]. Grading of tumours is performed according to radiographic characteristics GKT Task 1 tumour extent and size and is used to guide treatment [ 19 ].

Patients with small or asymptomatic tumours Tawk usually managed conservatively with serial surveillance scans.

Post navigation

Small- or medium-sized tumours deemed suitable for treatment can be treated effectively and safely with stereotactic radiosurgery SRS [ 22 ], but larger tumours are usually managed with surgery. However, this approach is prone to measurement inaccuracies.

Volumetric measurement is a solution to this problem [ 37 ]. Volumetric analysis offers a more accurate representation of the tumour [ 38 ] and could significantly aid the management of these patients. Segmentation contouring is already used in the planning of gamma knife SRS treatment.

Segmentation also provides a means of performing volumetric measurement of the tumour. Compared with two-dimensional https://amazonia.fiocruz.br/scdp/essay/is-lafayette-a-hidden-ivy/huntington-s-disease-hd-is-a-neurodegenerative.php, it may be used more accurately for the active surveillance of VS.

Volumetric measurement has been GKT Task 1 to predict recurrence in patients with residual tumours following surgical intervention [ 35 ], to measure change in tumour size following SRS treatment [ 44 ] and to predict hearing preservation following SRS treatment [ 11 ]. There are three main methods of volumetric analysis: manual segmentation, semi-automated segmentation and automated segmentation.]