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USG IMAGING ENHANCED WITH CLINICAL DIAGRAM: CO-PRESENTATION OF USG IMAGING INFORMATION WITH INFORMATION GATHERED FROM EXAMINATION UNDER ANAESTHESIA BRACHYTHERAPY MANAGEMENT

IP.com Disclosure Number: IPCOM000245856D
Publication Date: 2016-Apr-13
Document File: 3 page(s) / 473K

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2015ID03939

USG Imaging enhanced with clinical diagram: Co-presentation of USG imaging information with information gathered from examination under anaesthesia brachytherapy management

    Brachytherapy is an integral and irreplaceable component of radiotherapy used in the treatment of various malignancies including cervical cancer. In present practice of cervical cancer brachytherapy, bimanual examination under anaesthesia by clinicians remains a modality of choice for demarcation of palpable organs as this provides superior information about the elastic properties, adhesion etc. (e.g. relation of a parametrial tumour extension with lateral pelvic wall) of the tumour and other organs in comparison to most imaging modalities. In addition there are drawbacks specific to each imaging modality e.g. inability to image small lymph nodes, poor soft-tissue contrast of CT and inability of USG (UltraSound Guidance) to image a structure to which an acoustic path is absent.

    In current practice it is up to the clinician to correlate the information gleaned by palpation (usually bimanual examination under anaesthesia, typically recorded on charts (Figure 1) with imaging information from CT, USG or MRI. A visualization system to provide a usable registration between clinician markings and volumetric images would be beneficial.

    The present system comprises a mechanism to annotate palpated anatomical structures including organs, tumour with extensions and lymph nodes on predefined charts of anatomical landmarks and a mechanism to superimpose these annotations on images of the same anatomical structures obtained through various modalities e.g. USG, CT and MRI. In this system, USG imaging is used; however, other imaging modalities can also be used. In alternatives of the system, the imaging information may act as a guide to draw accurate annotations or the a...