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2.
Sci Total Environ ; 627: 1137-1145, 2018 Jun 15.
Artigo em Inglês | MEDLINE | ID: mdl-29426131

RESUMO

To develop coarse particle (PM10-2.5, 2.5 to 10µm) chemical source profiles, real-world source sampling from four domestic cooking and seven industrial processing facilities were carried out in "Raipur-Bhilai" of Central India. Collected samples were analysed for 32 chemical species including 21 elements (Al, As, Ca, Cd, Co, Cr, Cu, Fe, Hg, K, Mg, Mn, Mo, Na, Ni, Pb, S, Sb, Se, V, and Zn) by atomic absorption spectrophotometry (AAS), 8 water-soluble ions (Na+, K+, Mg2+, Ca2+, Cl-, F-, NO3-, and SO42-) by ion chromatography, ammonium (NH4+) by spectrophotometry, and carbonaceous fractions (OC and EC) by thermal/optical transmittance. The carbonaceous fractions were most abundant fraction in household fuel and municipal solid waste combustion emissions while elemental species were more abundant in industrial emissions. Most of the elemental species were enriched in PM2.5 (<2.5µm) size fraction as compared to the PM10-2.5 fraction. Abundant Ca (13-28%) was found in steel-rolling mill (SRM) and cement production industry (CPI) emissions, with abundant Fe (14-32%) in ferro-manganese (FEMNI), steel production industry (SPI), and electric-arc welding emissions. High coefficients of divergence (COD) values (0.46 to 0.88) among the profiles indicate their differences. These region-specific source profiles are more relevant to source apportionment studies in India than profiles measured elsewhere.

3.
J Pediatr Neurosci ; 12(1): 1-6, 2017.
Artigo em Inglês | MEDLINE | ID: mdl-28553370

RESUMO

Neonatal hypoxic-ischemic encephalopathy (HIE) is a devastating condition that may result in death or severe neurologic deficits in children. Neuroimaging with cranial ultrasound (US), computed tomography and magnetic resonance imaging are valuable tools in the workup of patients with HIE. The pattern of brain injury depends on the severity and duration of hypoxia and degree of brain maturation. Mild to moderate HI injury results in periventricular leukomalacia and germinal matrix bleed in preterm neonates, and parasagittal watershed infarcts in full-term neonates. Severe HI injury involves deep gray matter in both term and preterm infants. Treatment of HIE is largely supportive. The current article reviews the etiopathophysiology and clinical manifestations of HIE, role of imaging in the evaluation of the condition, patterns of brain injury in term and preterm neonates, the treatment and the prognosis.

4.
Can Assoc Radiol J ; 68(2): 161-170, 2017 May.
Artigo em Inglês | MEDLINE | ID: mdl-28283299

RESUMO

The increasing prevalence of tuberculosis in both immunocompetent and immunocompromised individuals in recent years makes the disease a topic of universal concern. It has insidious onset and can affect virtually any organ system in the body, including the central nervous system (CNS). CNS tuberculosis (TB) is becoming more and more complex and atypical with onset of multidrug-resistant TB. Routine diagnostic techniques using serology and body tissue are time consuming and may delay the definitive management. Hence, it is important to be familiar with various radiologic features of CNS TB to ensure early and accurate diagnosis, thereby reducing high morbidity and mortality associated with the disease. The newer imaging techniques further help to improve the characterization and diagnosis of atypical CNS TB. The authors review the imaging characteristics of different forms of CNS tuberculosis involving the brain and spine and discuss the role of advanced imaging modalities in differentiating CNS TB from other disease process.


Assuntos
Neuroimagem , Tuberculose do Sistema Nervoso Central/diagnóstico por imagem , Humanos , Imagem por Ressonância Magnética , Tomografia Computadorizada por Raios X , Tuberculose do Sistema Nervoso Central/fisiopatologia
5.
J Pak Med Assoc ; 66(9 Suppl 1): S26-9, 2016 09.
Artigo em Inglês | MEDLINE | ID: mdl-27582146

RESUMO

The incidence of congenital foetal anomalies and perinatal mortality in diabetic pregnancy is much higher than that in the normal pregnancy. The purpose of this review is to evaluate the role of ultrasound in the management of pregnancy complicated by diabetes. The ultrasound has been found to be very useful for foetal surveillance, assessment of diabetes related foetal complications, image guided interventions and in the obstetric management of the pregnancies complicated by diabetes.


Assuntos
Gravidez em Diabéticas/diagnóstico por imagem , Ultrassonografia Pré-Natal , Feminino , Desenvolvimento Fetal , Humanos , Mortalidade Perinatal , Gravidez , Resultado da Gravidez
6.
J Pak Med Assoc ; 65(4): 435-9, 2015 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-25976585

RESUMO

Diabetes mellitus (DM) is a major health concern globally, affecting almost every organ of the body. A major issue with DM is that a relatively large proportion of patients remain undiagnosed till the development of complications, many of which may cause permanent impairment. Therefore, early recognition of the radiological manifestations (of DM) is of utmost importance, so that the disease may be diagnosed and managed well in time. Some common and important radiological features encountered in practice are compiled in this article.


Assuntos
Complicações do Diabetes/diagnóstico , Diabetes Mellitus/diagnóstico , Erros de Diagnóstico/prevenção & controle , Radiologia/métodos , Tecnologia Radiológica/métodos , Diagnóstico Precoce , Humanos
7.
Adv Hematol ; 2015: 648349, 2015.
Artigo em Inglês | MEDLINE | ID: mdl-26880923

RESUMO

Chronic hemoglobinopathies like thalassemia are associated with many osteopathies like osteoporosis. Methods. This observational study was carried out to compare the bone mineral density (BMD) in transfusion dependent thalassemics with that of healthy controls. Thirty-two thalassemia patients, aged 2-18 years, and 32 age and sex matched controls were studied. The bone mineral concentration (BMC) and BMD were assessed at lumbar spine, distal radius, and neck of femur. Biochemical parameters like serum calcium and vitamin D levels were also assessed. Results. The BMC of neck of femur was significantly low in cases in comparison to controls. We also observed significantly lower BMD at the lumbar spine in cases in comparison to controls. A significantly positive correlation was observed between serum calcium levels and BMD at neck of femur. Conclusion. Hence, low serum calcium may be used as a predictor of low BMD especially in populations where incidence of hypovitaminosis D is very high.

8.
Indian J Radiol Imaging ; 24(4): 415, 2014 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-25489136
9.
Indian J Radiol Imaging ; 24(3): 268-70, 2014 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-25114390

RESUMO

Congenital absence of flexor pollicis longus with or without associated anomalies of thenar muscles and thumb is of rare occurrence. Inability to flex the interphalangeal joint of the thumb and absent dorsal wrinkles and flexion creases of the thumb are important clues to the diagnosis. Routine radiography and cross-sectional imaging help to confirm and document the condition. This article presents an extremely rare case of bilateral congenital absence of flexor pollicis longus tendon with thumb hypoplasia and thenar atrophy.

15.
Abdom Imaging ; 39(6): 1182-5, 2014 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-24806312

RESUMO

Hepatic cysticercosis is a very rare entity; only four cases have been reported to date. High-resolution ultrasonography of the abdomen is the initial and most reliable modality for evaluation of hepatic cysticercosis. Medical therapy is the mainstay of treatment. We report a case of hepatic cysticercosis in a 28-year-old male who presented with right upper quadrant pain, fever, and jaundice. The article also describes the imaging patterns of hepatic cysticercosis based on different stages of evolution.


Assuntos
Cisticercose/diagnóstico por imagem , Hepatopatias Parasitárias/diagnóstico por imagem , Corticosteroides/uso terapêutico , Adulto , Albendazol/uso terapêutico , Anti-Helmínticos/uso terapêutico , Cisticercose/diagnóstico , Cisticercose/tratamento farmacológico , Diagnóstico Diferencial , Ensaio de Imunoadsorção Enzimática/métodos , Humanos , Fígado/diagnóstico por imagem , Fígado/parasitologia , Hepatopatias Parasitárias/diagnóstico , Hepatopatias Parasitárias/tratamento farmacológico , Masculino , Ultrassonografia
16.
Eur J Radiol ; 83(1): 47-56, 2014 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-23769766

RESUMO

Pulmonary Langerhans cell histiocytosis (PLCH) is a well known entity in adults but is exceedingly rare in children. It is better described in adults than in children. We describe the current understanding of PLCH in children and a spectrum of radiological findings of PLCH in the paediatric population. On high resolution computed tomography (HRCT), PLCH may have variable appearance depending on the stage of disease, ranging from small interstitial nodular opacities to multiple thin/thick walled cysts (often bizarre in shape), eventually leading to marked parenchymal fibrosis and honeycomb pattern. CT finding of PLCH is similar in adult and paediatric populations with the exception that lung base near the costophrenic angle is spared in adults but almost always involved in children.


Assuntos
Histiocitose de Células de Langerhans/diagnóstico por imagem , Pulmão/diagnóstico por imagem , Posicionamento do Paciente/métodos , Radiografia Torácica/métodos , Tomografia Computadorizada por Raios X/métodos , Adolescente , Criança , Pré-Escolar , Feminino , Humanos , Lactente , Masculino
17.
J Neurosci Rural Pract ; 4(Suppl 1): S109-11, 2013 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-24174773

RESUMO

Basal encephaloceles are extremely rare congenital malformations. Advanced cross-sectional imaging modalities like computed tomography and magnetic resonance imaging are necessary for diagnosing the asymptomatic, occult basal encephalocele and planning the surgical approach. We present an interesting case of clinically silent right-sided lateral intrasphenoidal encephalocele through a large bony defect.

18.
Jpn J Radiol ; 31(12): 786-96, 2013 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-24122527

RESUMO

The neuroimaging of Langerhans cell histiocytosis (LCH), in most of the cases, is nonspecific and can vary depending on the location, especially as shown on magnetic resonance imaging (MRI). In the absence of a clinical history of LCH, isolated central nervous system (CNS) lesion presents a diagnostic challenge. LCH should be considered in the differential diagnosis of craniofacial tumors and neurodegenerative (ND) lesions of the brain. MRI is the modality of choice for investigating the CNS-LCH. Long-term follow-up with MRI is indicated in patients with ND-LCH. This retrospective study provides a comprehensive description of the spectrum of neuroimaging findings in patients with LCH, the underlying neuropathology, and follow-up study of the disease.


Assuntos
Histiocitose de Células de Langerhans/patologia , Imagem por Ressonância Magnética , Neuroimagem , Adolescente , Adulto , Encéfalo/patologia , Criança , Pré-Escolar , Dura-Máter/patologia , Face/patologia , Feminino , Humanos , Lactente , Masculino , Base do Crânio/patologia , Coluna Vertebral/patologia
19.
Indian J Endocrinol Metab ; 17(2): 219-27, 2013 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-23776892

RESUMO

Thyroid ultrasonography has established itself as a popular and useful tool in the evaluation and management of thyroid disorders. Advanced ultrasound techniques in thyroid imaging have not only fascinated the radiologists but also attracted the surgeons and endocrinologists who are using these techniques in their daily clinical and operative practice. This review provides an overview of indications for ultrasound in various thyroid diseases, describes characteristic ultrasound findings in these diseases, and illustrates major diagnostic pitfalls of thyroid ultrasound.

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