Frameless Registration of X-CT and SPECT Images by Volume Matching
نویسندگان
چکیده
منابع مشابه
Attenuation correction of myocardial SPECT images with X-ray CT: effects of registration errors between X-ray CT and SPECT.
PURPOSE Attenuation correction with an X-ray CT image is a new method to correct attenuation on SPECT imaging, but the effect of the registration errors between CT and SPECT images is unclear. In this study, we investigated the effects of the registration errors on myocardial SPECT, analyzing data from a phantom and a human volunteer. METHODS Registerion (fusion) of the X-ray CT and SPECT ima...
متن کاملFrameless registration of MR and CT 3D volumetric data sets
In this paper we present techniques for frameless registration of 3D Magnetic Resonance (MR) and Computed Tomography (CT) volumetric data of the head and spine. We present techniques for estimating a 3D affine or rigid transform which can be used to resample the CT (or MR) data to align with the MR (or CT) data. Our technique transforms the MR and CT data sets with spatial filters so they can b...
متن کاملFast CT/PET registration based on partial volume matching
Combining CT – representing bone structures – and PET – visualizing functional information – reveals many advantages in the area of cancer diagnosis and treatment. Here, fully automatic registration is desired but very time consuming when considering big datasets. We present a technique to register CT and PET datasets based on the ”Mutual Information” criterion. To overcome the speed problem we...
متن کاملA comparative study of surface- and volume-based techniques for the automatic registration between CT and SPECT brain images.
Image registration of multimodality images is an essential task in numerous applications in three-dimensional medical image processing. Medical diagnosis can benefit from the complementary information in different modality images. Surface-based registration techniques, while still widely used, were succeeded by volume-based registration algorithms that appear to be theoretically advantageous in...
متن کاملThe influence of misregistration between CT and SPECT images on the accuracy of CT-based attenuation correction of cardiac SPECT/CT imaging: Phantom and clinical studies
Introduction: Integration of single photon emission computed tomography (SPECT) and computed tomography (CT) scanners into SPECT/CT hybrid systems permit detection of coronary artery disease in myocardial perfusion imaging (MPI). Misregistration between CT and emission data can produce some errors in uptake value of SPECT images. The aim of this study was evaluate the influence...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Japanese Journal of Radiological Technology
سال: 2000
ISSN: 0369-4305,1881-4883
DOI: 10.6009/jjrt.kj00001356964