Arterial Input Function Placement for Accurate CT Perfusion Map Construction in Acute Stroke

نویسندگان
چکیده

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

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

An Efficient Framework for Accurate Arterial Input Selection in DSC-MRI of Glioma Brain Tumors

Introduction: Automatic arterial input function (AIF) selection has an essential role in quantification of cerebral perfusion parameters. The purpose of this study is to develop an optimal automatic method for AIF determination in dynamic susceptibility contrast magnetic resonance imaging (DSC-MRI) of glioma brain tumors by using a new preprocessing method.Material and Methods: For this study, ...

متن کامل

Dynamic CT perfusion imaging of acute stroke.

BACKGROUND AND PURPOSE Because cerebral perfusion imaging for acute stroke is unavailable in most hospitals, we investigated the feasibility of a method of perfusion scanning that can be performed rapidly during standard cranial CT. Our aim was to identify the scanning parameters best suited to indicate tissue at risk and to measure a perfusion limit to predict infarction. METHODS Seventy pat...

متن کامل

Quantitative three-dimensional myocardial perfusion cardiovascular magnetic resonance with accurate two-dimensional arterial input function assessment

BACKGROUND Quantification of myocardial perfusion from first-pass cardiovascular magnetic resonance (CMR) images at high contrast agent (CA) dose requires separate acquisition of blood pool and myocardial tissue enhancement. In this study, a dual-sequence approach interleaving 2D imaging of the arterial input function with high-resolution 3D imaging for myocardial perfusion assessment is presen...

متن کامل

Quantitative 3D Myocardial Perfusion Imaging at High Dose with Accurate Arterial Input Function Assessment

Quantitative 3D Myocardial Perfusion Imaging at High Dose with Accurate Arterial Input Function Assessment Lukas Wissmann, Markus Niemann, Robert Manka, and Sebastian Kozerke Institute for Biomedical Engineering, University and ETH Zurich, Zurich, Switzerland, Department of Cardiology, University Hospital Zurich, Zurich, Switzerland, Division of Imaging Sciences & Biomedical Engineering, King's...

متن کامل

Quantitative myocardial perfusion imaging using a step arterial-input function

Background Modern MRI myocardial perfusion protocols use rapid venous bolus injections, typically 3-5 ml/s of 5-15 ml of agent over a few seconds. The resulting arterial input functions are rapidly varying with high agent concentrations (Fig. 1A and 1B) and thus typically require high temporal resolution acquisitions (~1 sec), custom pulse sequences and complex processing methods for perfusion ...

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

ژورنال

عنوان ژورنال: American Journal of Roentgenology

سال: 2010

ISSN: 0361-803X,1546-3141

DOI: 10.2214/ajr.09.2845