Image-guided fracture

نویسنده

  • David Mould
چکیده

We present an image filter that transforms an input line drawing into an image of a fractured surface, where the cracks echo the input drawing. The basis of our algorithm is the Voronoi diagram of a weighted graph, where the distance between nodes is path cost in the graph. Modifying the edge costs gives us control over the placement of region boundaries; we interpret region boundaries as cracks. The rendering of our crack maps into final images is accomplished either by image analogies or by modulation of an uncracked texture.

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Health technology assessment of image-guided radiotherapy (IGRT): A systematic review of current evidence

Background: Image-guided radiotherapy used multiple imaging during the radiation therapy course to improve the precision and accuracy of health care provider's treatment. Objectives: This study aims to assess the safety, effectiveness and economic aspects of image-guided radiation therapy for decision-making about this technology in Iran. Methods: In this study, the most important med...

متن کامل

The Impact of Residual Geometric Inaccuracies on Normal Organ Doses in Image Guided-Radiation Therapy of Prostate Cancer Using On-Board Kilovoltage Cone-Beam Computed Tomography

Introduction: The aim of this retrospective study was to evaluate the variations in delivered dose to the bladder, rectum, and femoral heads of prostate cancer patients during a course of treatment by image-guided radiation therapy (IGRT). Materials and Methods: Overall, 15 patients with prostate cancer were selected and. Each week, for each patient five consecutive cone beam computed tomograph...

متن کامل

Computer-Assisted Image-Guided Intramedullary Nailing of Femoral Shaft Fractures

Closed reduction and intramedullary nailing under x-ray fluoroscopy is the current treatment of choice for femoral shaft fractures. However, many images are required to successfully perform the procedure, especially for distal locking of the nail, resulting in cumulative radiation exposure to the surgeon. Recently, computer-based technologies have been developed for surgical navigation, enablin...

متن کامل

بررسی ارزش تشخیص نمونه برداری سوزنی ضایعات پستان با کمک روش های تصویربرداری

The evaluate the diagnostic value of image guided Fine Needle Aspiration (FNA) in breast lesions, the cytologic results of 401 patients were studied. All patients had either unpalpable masses or lesions who were hardly possible to localize by palpation and FNA was performed by single radiologist under ultrasound guide in all cases. The cytologic results were divided into four categories (inconc...

متن کامل

Computed tomography-based navigation-assisted pedicle screw insertion for thoracic and lumbar spine fractures.

BACKGROUND Incorrect placement of pedicle screws may lead to neurovascular injury, so the position is important for the reduction of spinal fractures. CT-based image-guided surgery has been promoted as a means to theoretically improve the accuracy of pedicle screw placement. Patients who underwent CT-based navigation-assisted pedicle screw fixation for thoracic or lumbar fractures were reviewed...

متن کامل

Systematic fractures analysis using image logs and complementary methods in the Marun Oilfield, SW Iran

Fractures are considered as one of the important structures in fractured reservoirs due to their effect on fluid currents and reservoirparameters such as porosity and permeability. Fracture parameters can only be directly calculated with core and image logs. Cores haveserious limitations, so image logs are the best method. The aim of this study is the systematic fractures analysis of the Asmari...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2005