Víctor Daniel Calvo

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Chloral hydrate is a sedative that has been used for magnetic resonance imaging (MRI). To evaluate the use, effectiveness and safety of chloral hydrate administered by radiologists for the sedation of children who require MRI procedures. We retrospectively reviewed the clinical charts for all patients ages 0 – 10 years old who underwent sedation with(More)
PURPOSE To evaluate the accuracy of a three-dimensional dual phase (3D DP) whole-heart technique for cardiac volumetric assessment in pediatric patients with cardiac abnormalities. MATERIALS AND METHODS The institutional approved this study, and informed consent was obtained from patients or their guardians. This prospective study involved 31 pediatric(More)
Curative resection of pancreatic and biliary malignancies is rare. Most tumors are inoperable at presentation, and palliation of jaundice often is the goal. Biliary decompression can be achieved by surgical diversion or endoscopic biliary stents. This study aimed to compare clinical outcomes between surgical bypass and endoscopic uncovered nitinol stents in(More)
Picture archiving and communication systems traditionally have depended on schema-based Structured Query Language (SQL) databases for imaging data management. To optimize database size and performance, many such systems store a reduced set of Digital Imaging and Communications in Medicine (DICOM) metadata, discarding informational content that might be(More)
UNLABELLED Cerebral atrophy is a common finding in patients infected with the Human Immunodeficiency Virus (HIV), particularly in patients with dementia. This disease shows neocortical compromise in late stages as well as compromise in the basal ganglia in early or asyntomatic phases. OBJECTIVE Evaluate changes in total brain volume, caudate nucleus(More)
Total knee arthroplasty (TKA) is associated with substantial blood loss. Sources of bleeding are the femoral and tibial intramedullary canals, which are violated during implantation using standard instrumentation. Patient-specific instrumentation (PSI) and computer-assisted surgery (CAS) do not require violation of the intramedullary canals. Therefore, we(More)
1 Gastrointestinal Surgeon and Endoscopist, Chief of the Graduate General Surgery Program at Universidad Pontificia Bolivariana, Member of the Gastrohepatology group at the Universidad de Antioquia and the Instituto de Cancerología Clínica las Américas in Medellín, Colombia rcastanoll@hotmail.com 2 Radiologist, Internist and Gastroenterologist, Professor at(More)
The challenges involved in effectively storing, retrieving and sharing medical images have led the researchers to look into various means and methods of doing the same. It is the need of the hour for a hybrid data model which will solve all the challenges involved in it. In the previous work the suitability of using NoSQL databases in storing and retrieval(More)
INTRODUCTION Ulegyria is a cortical lesion affecting neighbouring vascular zones, which gives the convolutions a mushroom-like appearance. It is an important cause of occipital epilepsy. AIM. To correlate patients diagnosed clinically, electrically and morphometrically with ulegyria and epilepsy by comparing the thickness of the cortex in the zones affected(More)
INTRODUCTION As there are still doubts about brain connectivity in type I bipolar disorder (BID), resting-state functional magnetic resonance imaging (RS-fMRI) studies are necessary during euthymia for a better control of confounding factors. OBJECTIVE To evaluate the differences in brain activation between euthymic BID patients and control subjects using(More)