Radiologists virtually unwrap mummy's secrets

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

Radiologists' lament.

TO THE EDITOR: This letter of lament was prompted by a recently overheard complaint by a first-year intern to her colleagues that radiologists were not “obeying” her! Her comment led us to review her last five imaging requests (“orders”). After discussion with other radiologists, three of these requests were considered inappropriate. Major reasons for inappropriate imaging investigations are la...

متن کامل

A Robust and Efficient Method to Unwrap MR Phase Images

L. Ying, J. X. Ji, D. C. Munson, Jr. , Z. P. Liang, R. Koetter, B. J. Frey University of Illinois at Urbana Champaign, Urbana, IL, United States, University of Toronto, Toronto, Ontario, Canada SYNOPSIS Phase unwrapping finds many important applications in MRI, ranging from field mapping to flow imaging. In this paper, we propose a novel approach to 2-D phase unwrapping, which models the true p...

متن کامل

An Improved Unwrap for Data Corrupted by Overflow

Overflow occurs when a value is represented in binary using an insufficient number of bits. Values that lie outside the bit range are misinterpreted as values within the bit range. Continuous signals that suffer from integer overflow can be correcting using unwrap functions, but this correction fails when significant noise is present. A new method of correcting signals is proposed which uses mo...

متن کامل

Virtually fibred Montesinos Links

William Thurston conjectured over twenty years ago that every compact hyperbolic 3manifold whose boundary is a possibly empty union of tori is finitely covered by a manifold which fibres over the circle. If true, it provides a significant amount of global information about the topology of such manifolds. The first non-trivial examples supporting the conjecture were obtained by Gabai [Ga1] (1986...

متن کامل

Virtually Haken Dehn--lling

We show that \most" Dehn-llings of a non-bered, atoroidal, Haken three-manifold with torus boundary are virtually Haken. 1 Results Suppose that X is a compact, oriented, three-manifold with boundary a torus T: We will pick a basis of H 1 (T) represented by simple loops ; such that = 0 in H 1 (X; Q): We call a longitude and a meridian. A slope, ; on T is the isotopy class of essential unoriented...

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: Canadian Medical Association Journal

سال: 2009

ISSN: 0820-3946,1488-2329

DOI: 10.1503/cmaj.090237