Rodolfo Ferrando

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In refractory epilepsy, the goal of neuroimaging is to localize the region of seizure onset. Tracers that accumulate and remain fixed proportional to regional cerebral blood flow (rCBF) at the time of injection are used to obtain SPECT images of the brain activity during and between seizures. The most used technique for detecting the epileptogenic zone (EZ)(More)
In this paper we present an integrated software designed to help nuclear medicine physicians in the detection of epileptogenic zones (EZ) by means of ictal-interictal SPECT and MR images. This tool was designed to be flexible, friendly and efficient. A novel detection method was included (A-contrario) along with the classical detection method (Subtraction(More)
INTRODUCTION It has been demonstrated that scintigraphy with somatostatin analogues is useful for the diagnosis, staging and follow up of patients with neuroendocrine tumors from the gastrointestinal tract (NET-GIT). Some studies suggest that the use of 99mTc-Hydrazinonicotinyl-Tyr3-octreotide (99mTc-HYNIC-TOC) yields similar diagnostic results than the use(More)
OBJETIVE To evaluate left ventricular mechanical dyssynchrony (LVMD) associated to prolonged right ventricular pacing through an innovative imaging technique, as a pilot study in Uruguay. METHODS We performed 99mTc-MIBI gated-SPECT and phase analysis in 12 patients with pacemakers implanted at least one year before scintigraphy due to advanced(More)
The protocols using vasodilators to induce ischemia on myocardial perfusion scintigraphy have shown a high diagnostic accuracy and a very low incidence of serious complications. However, the physiological significance and diagnostic value of various electrocardiographic changes associated with vasodilator stress has not been deeply evaluated beyond the(More)
BACKGROUND Ischemic heart failure with normal ejection fraction (HFNEF) is an increasingly recognized entity that carries similar morbidity and mortality than low ejection fraction heart failure. Animal models of diastolic dysfunction mimicking this condition are lacking and are essential for the development of therapeutic strategies. METHODS AND RESULTS(More)