Scanning of the radioactive tracers in the calvarium represents a major advance of diagnostic techniques in the evaluation of intracranial disease. The pioneering work by Moore (18) at Mayo Clinic in 1948 utilized 1311 labeled Di-lodo-fluorescein as the tracer detected by a Geiger-Muller tube. This now primitive system demonstrated a higher concentration of the isotope tracer in the brain tumor...

speech delay with an unknown cause is a problem among children. this diagnosis is the last differential diagnosis after observing normal findings in routine hearing tests. the present study was undertaken to determine whether auditory brainstem responses to click stimuli are different between normally developing children and children suffering from delayed speech with unknown causes. in this cr...

the current study was performed with the aim of investigating the diagnostic utility of bender-gestalt test-ii (bdt-ii) in two groups of patients with major depression and brain-damage, and to compare them with normal individuals. this was a causal-comparative study. major depressive patients (n=30), brain-damaged patients (n=30) and normal subjects (n=30) were compared using bdt-ii in copying,...

brain single-photon emission computerized tomography (spect), in particular, with perfusion agents or with neuroreceptor imaging radiopharmaceuticals, is rapidly becoming a clinical tool in many neurologic and psychiatric conditions. this imaging modality has been used for diagnosis, prognosis assessment, evaluation of response to therapy, risk stratification, detection of benign vs. malignant ...

background: solitary fibrous tumor (sft) is a mesenchymal tumor which is most commonly seen in the pleura; however it can be seen in other organs such as the meninge, gastrointestinal tract, soft tissue, bone, and skin. sft should be differentiated from other mesenchymal tumors in these organs. immunohistochemistry plays a pivotal role for the histopathologic diagnosis of this tumor. currently,...

Introduction: Due to nuclear interactions between the tissues and high-energy protons, the particles, including neutrons, positrons, and photons arise during proton therapy. This study aimed at investigating the dose distribution of proton and secondary particles, such as positrons, neutrons, and photons using the Monte Carlo method. Material and Methods:<...

Abstract Approximately 50% of all brain metastasis cases originate from primary lung tumors. Whole-brain radiation therapy (WBRT) is a common treatment for patients with multiple metastases, but rarely survive longer than one year after diagnosis. Recent studies demonstrate improved outcomes combinatorial radiotherapy and immunotherapy, the optimal timing immunotherapy administration unclear. E...

in this paper an automatic examination robot was developed to improve the process of cancer detection, tumor localization and geometrical shape diagnosis. a uniformly distributed compressive load was applied to the top tissue surface and the resultant mechanical stress was measured that was employed for the tumor diagnosis task. the experimental examinations were performed on the soft tissue of...

background: the humbug gene is a truncated isoform of aspartyl β-hydroxylase (asph) gene that is overexpressed in many human malignancies. in recent years, since humbug has received increasing attention, it is considered as a potential therapeutic molecular target. therefore, it is necessary for preparing humbug protein and its monoclonal antibody to investigate its structure and function. meth...