18F-fluorodeoxyglucose ([18F]-FDG) positron emission tomography/computed tomography (PET/CT) is a useful functional image technique to evaluate the disease extent in many cancers, as well differentiate benign from malignant metastasis. We report case of 49-year-old woman with breast cancer and suspected lung metastasis by conventional images. After FDG-PET/CT demonstrating faint, or even no FDG...

INTRODUCTION Blend sign has been recently described as a novel imaging marker that predicts hematoma expansion. The purpose of our study was to investigate the prognostic value of CT blend sign in patients with ICH. OBJECTIVES AND METHODS Patients with intracerebral hemorrhage who underwent baseline CT scan within 6 hours were included. The presence of blend sign on admission nonenhanced CT w...

Imaging has a prominent role in the assessment of sarcoidosis diagnosis and outcome, which are extremely variable. Chest radiography staging helps predict the probability of spontaneous remission, and stage IV is associated with higher mortality. However, the reproducibility of reading is poor and changes in radiography and lung function are inconsistently correlated, which may be problematic f...

Correct staging of non small cell lung cancer (NSCLC) is vital for appropriate management. Initial staging is usually performed with computerised tomography (CT), but increasingly functional imaging using integrated positron emission tomography and CT (PET/CT) is being used to provide more accurate staging, guide biopsies, assess response to therapy and identify recurrent disease.

evaluate the impact and clinical value of anatomical-functional image fusion in the study interpretation and clinical management of patients with neuroendocrine tumours (NET) using somatostatin receptor scintigraphy (SRS) and combined transmission and emission tomography – single-photon emission tomography/CT (SPET/CT). Material and methods: Twelve patients (8 female and 4 male; age range 32-74...

We obtain the parity invariant generating functional for the canonical transformation mapping the Liouville theory into a free scalar field and explain how it is related to the pseudoscalar transformation e-mail: [email protected] Present address: Department of Mathematical Sciences, University of Durham, UK 1 In this paper we consider the 2-dimensional Liouville theory, based on the Lagrangi...

introduction: pulmonary embolism (pe) is a common lethal disease that its clinical symptoms may be seen in many other diseases. computed tomography pulmonary angiography (ctpa) is a valuable diagnostic modality for detection of pe. in addition, it can accurately detect the other diseases with clinical symptoms similar to pe. the aim of this study is to evaluate the frequency of pe and nonemboli...

in present pet/ct scanners, pet attenuation correction is performed by relying on the information given by ct scan. in the ct-based attenuation correction methods, dual-energy technique (dect) is the most accurate approach, which has been limited due to the increasing patient dose. in this feasibility study, we have introduced a new method that can implement dual-energy technique with only a si...

Charge transfer (CT) states and excitons are important in energy conversion processes that occur in organic light emitting devices (OLEDS) and organic solar cells. An ab initio density functional theory (DFT) method for obtaining CT-exciton electronic couplings between CT states and excitons is presented. This method is applied to two organic heterodimers to obtain their CT-exciton coupling and...