MRI Challenge

نویسندگان
چکیده

برای دانلود باید عضویت طلایی داشته باشید

برای دانلود 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

MRI Challenge

Figure 1. The fat-suppressed T2-weighted coronal image shows a small partial articular surface tear (arrow) evident at the anterior margin of the infraspinatus insertion. Underlying subchondral cystic changes and reactive marrow edema (arrowhead) are seen within the greater tuberosity. A 22-year-old professional baseball pitcher presents with persistent posterior shoulder pain after throwing. A...

متن کامل

Respiratory challenge MRI: Practical aspects

Respiratory challenge MRI is the modification of arterial oxygen (PaO2) and/or carbon dioxide (PaCO2) concentration to induce a change in cerebral function or metabolism which is then measured by MRI. Alterations in arterial gas concentrations can lead to profound changes in cerebral haemodynamics which can be studied using a variety of MRI sequences. Whilst such experiments may provide a wealt...

متن کامل

Evaluation of prostate segmentation algorithms for MRI: The PROMISE12 challenge

Prostate MRI image segmentation has been an area of intense research due to the increased use of MRI as a modality for the clinical workup of prostate cancer. Segmentation is useful for various tasks, e.g. to accurately localize prostate boundaries for radiotherapy or to initialize multi-modal registration algorithms. In the past, it has been difficult for research groups to evaluate prostate s...

متن کامل

Crossed cerebellar diaschisis: insights into oxygen challenge MRI.

Hyperoxia during T2*-weighted magnetic resonance imaging (oxygen challenge imaging (OCI)) causes T2*-weighted signal change that is dependent on cerebral blood volume (CBV) and oxygen extraction fraction (OEF). Crossed cerebellar diaschisis (CCD), where CBV is reduced but OEF is maintained, may be used to understand the relative contributions of OEF and CBV to OCI results. In subjects with larg...

متن کامل

Spatial-temporal MRI Responses of Stroke Rats to Oxygen Challenge

INTRODUCTION Therapy in acute ischemic stroke can only be effective as long as potentially salvageable tissue is present within the brain area affected by the blood flow disturbance. Therefore, the identification of the penumbra and the distinction of this potentially reversible condition from irreversibly damaged tissue are of utmost importance for the initiation of treatment strategies. Irrev...

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: Sports Health: A Multidisciplinary Approach

سال: 2009

ISSN: 1941-7381,1941-0921

DOI: 10.1177/1941738108326701