A 3D Ultrasound System for Medical Diagnosis

نویسندگان

  • João M. Sanches
  • Jorge S. Marques
  • Fausto Pinto
  • Paulo J. Ferreira
چکیده

This paper presents a system for 3D ultrasound which aims to reconstruct a volume of interest from a set of ultrasound images. A Bayesian reconstruction algorithm has been recently proposed to perform this task. However, it is too slow to be useful in practice. This paper describes several techniques to improve the efficiency of the reconstruction procedure based multi-scale principles and based on the expansion of the likelihood function in a Taylor series. This allows the use of sufficient statistics which avoid processing all the images in each iteration and leads to a space-varying recursive filter designed according to the statistical properties of the data. Experimental results are provided to assess the performance of the proposed algorithms in medical diagnosis.

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

2D Transducer Array for High-Speed 3D Imaging System

3D imaging system was developed utilizing a combination of sparse 2D arrays, the synthetic aperture focusing technique, and coded excitation of a solution for high-speed 3D ultrasound imaging, since it could formulate multiple transmitting beams as well as receiving beams with a minimum number of transmissions. A 40 × 40 array of PZT elements was fabricated with a conventional dice-and-fill pro...

متن کامل

Biological Effect of Modern Fetal Ultrasound Techniques on Human Dermal Fibroblast Cells

Background: Diagnostic ultrasound has been used to detect human disease especially fetus abnormalities in recent decades. Although the harmful effects of diagnostic ultrasound on human have not been established so far, several researchers showed it has had bioeffects in cell lines and in experimental animals. Three-dimensional (3D), four-dimensional (4D), and color Doppler sonography are new te...

متن کامل

Haptic Interaction with 3D Ultrasound Data

The e-Touch sonoTM system allows users to interactively feel and see 3D ultrasound images. This system is currently targeted for use in pre-natal imaging [1]. Parents are able to feel as well as see three-dimensional imagery. We have found that this increases both their understanding and their enjoyment of their child's ultrasound image. This has several important benefits. First of all, it all...

متن کامل

Prostate ultrasound images processing

The purpose of this paper is to present a software package for the handling and management of prostate transabdominal ultrasound images. The software package can be used to detect men's prostate in transabdominal ultrasound images, to build a 3D model for the detected object, to represent the 3D model obtained, to calculate prostate's volume and to classify the prostate transabdominal ultrasoun...

متن کامل

Supporting Ultrasound Diagnosis Using an Animated 3D Model of the Heart

We have developed a training and support system for echocardiography based on a 3D visualization of a virtual beating heart and the blood flow. The user can interact with the system by positioning a tracker-equipped transducer. The user is able to acquire mental images of the dynamic anatomy of the heart, a mental model for the interpretation of ultrasonic images, and skills in capturing

متن کامل

A molecular image-directed, 3D ultrasound-guided biopsy system for the prostate

Systematic transrectal ultrasound (TRUS)-guided biopsy is the standard method for a definitive diagnosis of prostate cancer. However, this biopsy approach uses two-dimensional (2D) ultrasound images to guide biopsy and can miss up to 30% of prostate cancers. We are developing a molecular image-directed, three-dimensional (3D) ultrasound image-guided biopsy system for improved detection of prost...

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 2003