ABSTRACT
The objective of the present study was to describe two non-invasive methods for fat quantification in normal canine liver by using magnetic resonance imaging (MRI) and spectroscopy. Eleven adult beagle dogs were anesthetized and underwent magnetic resonance examination of the cranial abdomen by performing morphologic, modified Dixon (mDixon) dual gradient echo sequence, and proton magnetic resonance spectroscopy (¹H MRS) imaging. In addition, ultrasonographic liver examination was performed, fine-needle liver aspirates and liver biopsies were obtained, and hepatic triglyceride content was assayed. Ultrasonographic, cytologic, and histologic examination results were unremarkable in all cases. The median hepatic fat fraction calculated was 2.1% (range, 1.3%–5.5%) using mDixon, 0.3% (range, 0.1%–1.0%) using ¹H MRS, and 1.6% (range 1.0%–2.5%) based on triglyceride content. The hepatic fat fractions calculated using mDixon and ¹H MRS imaging were highly correlated to that based on triglyceride content. A weak correlation between mDixon and ¹H MRS imaging was detected. The results show that hepatic fat content can be estimated using non-invasive techniques (mDixon or ¹H MRS) in healthy dogs. Further studies are warranted to evaluate the use of these techniques in dogs with varying hepatic fat content and different hepatic disorders.
Subject(s)
Adult , Animals , Dogs , Humans , Abdomen , Biopsy , Liver , Magnetic Resonance Imaging , Proton Magnetic Resonance Spectroscopy , Protons , Spectrum Analysis , TriglyceridesABSTRACT
Os autores estudaram tres casos de ascaridiase na infancia que apresentaram aspectos radiologicos, ultra-sonograficos e intra-operatorios caracteristicos...
Subject(s)
Humans , Infant , Child, Preschool , Ascaridiasis/complications , Ascaridiasis/surgery , Ascaridiasis/diagnosis , Ascaridiasis , Ascaridiasis , Diagnosis, Differential , Diagnostic Imaging , Tomography, X-Ray ComputedABSTRACT
Os autores descrevem um caso de gemelaridade conjugada incompleta, em que o feto parasito apresentava bacia, perineo e membros inferiores ligados a pelve do hospedeiro. Trata-se de um caso raro, no qual os métodos de imagem contribuiram para a conduta pós-natal, conferindo uma sobrevida adequada
Subject(s)
Humans , Female , Infant, Newborn , Pregnancy , Congenital, Hereditary, and Neonatal Diseases and Abnormalities/diagnosis , Twins, Monozygotic , Diagnostic Imaging/methods , Ultrasonography , UrographyABSTRACT
Os autores relatam um caso de osteomelite em membros inferiores, em que houve migração de êmbolos sépticos para os pulmões, como complicação do quadro inicial. Discute-se a clínica, a patologia e a possibilidade de se fazer o diagnóstico por meio da radiografia convencional, da tomografia computadorizada e da cintilografia.
Subject(s)
Adolescent , Male , Humans , Pulmonary Embolism/diagnosis , Pulmonary Embolism/etiology , Osteomyelitis/complications , Osteomyelitis/diagnosis , Osteomyelitis/etiology , Systemic Inflammatory Response SyndromeABSTRACT
Os autores relatam um caso de osteoartropatia hipertrófica na infância, associada a hepatopatia crônica. Recentemente, foi observado que, após transplante hepa´tico, pode haver melhora do quadro de artrite associado a osteoartropatia.
Subject(s)
Child, Preschool , Female , Humans , Jaundice/complications , Osteoarthropathy, Secondary Hypertrophic/diagnosis , Osteoarthropathy, Secondary Hypertrophic/etiology , Arthritis , Liver DiseasesABSTRACT
Os autores apresentam dois casos de osteopetrose com os principais achados imagenologicos do mesmo.