In the context of oncology, dynamic PET imaging coupled with standard graphical linear analysis has been previously employed to enable quantitative estimation of tracer kinetic parameters of physiological interest at the voxel level, thus, enabling quantitative PET parametric imaging. However, dynamic PET acquisition protocols have been confined to the limited axial field-of-view (~15-20 cm) of...

Objective The rupture of an atherosclerotic plaque is a major cause of ischemic events, such as stroke and myocardial infarction. Plaque vulnerability has been linked to the formation of angiogenic microvessels within the plaque. It has been shown that dynamic-contrast enhanced MRI (DCE-MRI) allows the detection and quantification of this neovascularisation. Pharmacokinetic models are used to d...

We present PLTplot, a plotting package for PLT Scheme. PLTplot provides a basic interface for producing common types of plots such as line and vector field plots from Scheme functions and data, an advanced interface for producing customized plot types, and support for standard curve fitting. It incorporates renderer constructors, transformers from data to its graphical representation, as values...

Bu araştırma yerel cin mısır popülasyonlarının Osmaniye ili Sumbas ilçesi koşullarında verim performanslarının araştırılarak bu ekolojiye uygun yüksek verimli ve kaliteli çeşitlerini belirlemek amacıyla 2014 yılında yürütülmüştür. Tesadüf blokları deneme desenine göre dört tekerrürlü olarak kurulan araştırmada 2 adet çeşidi 15 popülasyonu kullanılmıştır. Araştırmada incelenen popcorn genotipler...

UNLABELLED In this theoretic note, the rationale for the physical decay correction of the (18)F-FDG input function in dynamic PET is investigated, using the Patlak equation as an example. METHODS The Patlak equation conventionally obtained when correcting the (18)F-FDG input function and correcting the tissue activity measurement for (18)F physical decay can also be derived from a 2-compartme...

UNLABELLED This study evaluated various quantitative criteria for analysis of breast imaging with PET using the radiolabeled glucose analog 18F-fluorodeoxyglucose (FDG). METHODS In a prospective study, 73 patients with abnormal mammography or palpable breast masses scheduled for biopsy were investigated with PET. A total of 97 breast tumors were evaluated by histology, including 46 benign and...