Comparison and evaluation of retrospective intermodality brain image registration techniques
…, B Harkness, PF Hemler… - Journal of computer …, 1997 - journals.lww.com
Purpose: The primary objective of this study is to perform a blinded evaluation of a group of
retrospective image registration techniques using as a gold standard a prospective, marker-…
retrospective image registration techniques using as a gold standard a prospective, marker-…
Grey value correlation techniques used for automatic matching of CT and MR brain and spine images
…, EJD Pol, TS Sumanaweera, PF Hemler… - Visualization in …, 1994 - spiedigitallibrary.org
Grey value correlation is generally considered not to be applicable to matching of images of
different modalities. In this paper we will demonstrate that, with a simple preprocessing step …
different modalities. In this paper we will demonstrate that, with a simple preprocessing step …
Comparison and evaluation of retrospective intermodality image registration techniques
…, PA Van den Elsen, PF Hemler… - Medical Imaging …, 1996 - spiedigitallibrary.org
All retrospective image registration methods have attached to them some intrinsic estimate of
registration error. However, this estimate of accuracy may not always be a good indicator of …
registration error. However, this estimate of accuracy may not always be a good indicator of …
Stereotactic localization of breast lesions: how it works and methods to improve accuracy
JJ Carr, PF Hemler, PW Halford, RI Freimanis… - Radiographics, 2001 - pubs.rsna.org
A computer simulation of stereotactic breast biopsy was developed that paralleled the geometric
configuration of a currently available breast biopsy system. This model was developed …
configuration of a currently available breast biopsy system. This model was developed …
Radio frequency ablation registration, segmentation, and fusion tool
ES McCreedy, R Cheng, PF Hemler… - IEEE Transactions …, 2006 - ieeexplore.ieee.org
The radio frequency ablation segmentation tool (RFAST) is a software application
developed using the National Institutes of Health's medical image processing analysis and …
developed using the National Institutes of Health's medical image processing analysis and …
MR geometric distortion correction for improved frame‐based stereotaxic target localization accuracy
T Sumanaweera, GH Glover, PF Hemler… - Magnetic resonance …, 1995 - Wiley Online Library
We present a method to correct the geometric distortion caused by field inhomogeneity in
MR images of patients wearing MR‐compatible Stereotaxic frames. Our previously published …
MR images of patients wearing MR‐compatible Stereotaxic frames. Our previously published …
Registration error quantification of a surface‐based multimodality image fusion system
PF Hemler, S Napel, TS Sumanaweera… - Medical …, 1995 - Wiley Online Library
This paper presents a new reference data set and associated quantification methodology to
asses the accuracy of registration of computerized tomography (CT) and magnetic‐…
asses the accuracy of registration of computerized tomography (CT) and magnetic‐…
A versatile system for multimodality image fusion
PF Hemler, TS Sumanaweera… - Journal of image …, 1995 - Taylor & Francis
This paper presents a versatile system for registering and visualizing computed tomography
and magnetic resonance images. The system utilizes a semi-automatic, surface-based …
and magnetic resonance images. The system utilizes a semi-automatic, surface-based …
Lymph node segmentation using active contours
Node volume analysis is very important medically. An automatic method of segmenting the
node in spiral CT x-ray images is needed to produce accurate, consistent, and efficient …
node in spiral CT x-ray images is needed to produce accurate, consistent, and efficient …
Freeflight: A virtual endoscopy system
DJ Vining, DR Stelts, DK Ahn, PF Hemler, Y Ge… - CVRMed-MRCAS'97 …, 1997 - Springer
We created a virtual endoscopy system, called FreeFlight, that interactively generates three-dimensional
endoscopic images of human anatomy using spiral CT data. The software is …
endoscopic images of human anatomy using spiral CT data. The software is …