Radiation dose reduction in pediatric CT.

abstract：BACKGROUND:Pediatric optic pathway gliomas are typically indolent but have a variable clinical course. Treatment is dictated by symptoms and changes on contrast-enhanced MRI examinations. Gadolinium retention in children has motivated parsimonious use of gadolinium-based contrast agents. OBJECTIVES:To determine survei...

journal_title：Pediatric radiology

authors： Maloney E,Stanescu AL,Perez FA,Iyer RS,Otto RK,Leary S,Steuten L,Phipps AI,Shaw DWW

更新日期：2018-09-01 00:00:00

abstract：BACKGROUND:Pulmonary infection with SARS-CoV-2 virus (severe acute respiratory syndrome coronavirus 2; COVID-19) has rapidly spread worldwide to become a global pandemic. OBJECTIVE:To collect paediatric COVID-19 cases worldwide and to summarize both clinical and imaging findings in children who tested positive on poly...

journal_title：Pediatric radiology

authors： Caro-Dominguez P,Shelmerdine SC,Toso S,Secinaro A,Toma P,Damasio MB,Navallas M,Riaza-Martin L,Gomez-Pastrana D,Ghadimi Mahani M,Desoky SM,Ugas Charcape CF,Almanza-Aranda J,Ucar ME,Lovrenski J,Gorkem SB,Alexopoulou E,Cie

更新日期：2020-09-01 00:00:00

abstract：BACKGROUND:MRI is being increasingly used to evaluate tissue relaxation in the setting of iron overload. Diagnostic accuracy is strongly dependent upon the acquisition and analysis methods employed. Typically, a multi-echo train of relaxation data is acquired, the resulting curve is fit using a non-linear (exponential)...

journal_title：Pediatric radiology

authors： Otto R,Ferguson MR,Marro K,Grinstead JW,Friedman SD

更新日期：2011-10-01 00:00:00

abstract：BACKGROUND:MRI is frequently utilized to evaluate patients for osteomyelitis. The findings of intramedullary and extramedullary fat globules as well as extramedullary fat-fluid levels can help improve the specificity of MRI for this diagnosis. OBJECTIVE:To correlate these MRI findings with the clinical characteristics...

journal_title：Pediatric radiology

authors： Mattis TA,Borders HL,Ellinger DM,Junewick JJ

更新日期：2011-10-01 00:00:00

abstract：:A boy is described with severe hyperostosis of the cranium and facial bones, and many other abnormalities including macrocephaly, abnormal facies, cleft palate, conductive hearing loss, speech defect, dental and digital anomalies, delayed skeletal development, short fibulas, short stature of postnatal onset, cervical ...

journal_title：Pediatric radiology

authors： Currarino G,Friedman JM

更新日期：1986-01-01 00:00:00

abstract：:MRI is invaluable in assessing the neonatal brain following suspected perinatal injury. Good quality imaging requires adaptations to both the hardware and the sequences used for adults or older children. The perinatal and postnatal details often predict the pattern of lesions sustained and should be available to aid i...

journal_title：Pediatric radiology

authors： Rutherford M,Biarge MM,Allsop J,Counsell S,Cowan F

更新日期：2010-06-01 00:00:00

abstract：:Mass-like renal lesions in children occur in a diverse spectrum of conditions including benign and malignant neoplasm, infection, infarction, lymphatic malformation, and traumatic injury. Although mass-like renal lesions can sometimes be suspected on plain radiographs and evaluated with US in children, subsequent CT i...

journal_title：Pediatric radiology

authors： Lee EY

更新日期：2007-09-01 00:00:00

abstract：:Two neonates, one with complete and one with incomplete birth-related transection of the cervico-thoracic spinal cord, form the basis of this report. Ultrasound and MRI findings in primary diagnosis and follow-up are described. The aim of this contribution is to bring this serious birth complication to the attention o...

journal_title：Pediatric radiology

authors： Fotter R,Sorantin E,Schneider U,Ranner G,Fast C,Schober P

更新日期：1994-01-01 00:00:00

abstract：:A retrospective study was performed of 39 children at the Children's Memorial Hospital, Chicago, Illinois, who underwent technetium-99m glucoheptonate (99mTcGH) scintigraphy for evaluation of possible urinary tract infection. Clinical and laboratory criteria classified the children as having pyelonephritis, cystitis, ...

journal_title：Pediatric radiology

authors： Traisman ES,Conway JJ,Traisman HS,Yogev R,Firlit C,Shkolnik A,Weiss S

更新日期：1986-01-01 00:00:00

abstract：:Glenoid dysplasia is an anomaly of the scapula characterized by underdevelopment of the bony glenoid and adjacent part of the scapular neck which may be seen as a primary isolated condition, in patients with multiple anomalies or ill-defined syndromes, in well-described syndromes, in mucopolysaccharidoses and related ...

journal_title：Pediatric radiology

authors： Currarino G,Sheffield E,Twickler D

更新日期：1998-01-01 00:00:00

abstract：:Calcification of the upper respiratory tract is exceptional in persons aged under 15 years, and only 9 cases have been published so far in the English or French literature. We present a new case and analyse those already reported. ...

journal_title：Pediatric radiology

authors： Santos JM

更新日期：1991-01-01 00:00:00

abstract：:Magnetic resonance imaging (MRI) often provides better visualization of bone marrow abnormalities than computed tomography (CT) or fluoroscopy, but bone biopsies are usually performed using conventional CT or, more recently, C-arm CT guidance. Biopsies of bone lesions solely visible on MRI are often challenging to loc...

journal_title：Pediatric radiology

authors： Shellikeri S,Setser RM,Vatsky S,Srinivasan A,Krishnamurthy G,Zhu X,Keller MS,Cahill AM

更新日期：2018-02-01 00:00:00

abstract：:Imaging studies for sinusitis add little to the clinical management of the pediatric patient in most instances. The findings shown by paranasal sinus imaging are nonspecific and need to be correlated with clinical findings. Coronal CT is recommended for complications or for recurrent or persistent sinus disease. ...

journal_title：Pediatric radiology

authors： Kronemer KA,McAlister WH

更新日期：1997-11-01 00:00:00

abstract：BACKGROUND:Head computed tomography (CT) is the current standard of care for evaluating infants at high risk of abusive head trauma. OBJECTIVE:To both assess the feasibility of using a previously developed magnetic resonance imaging (MRI) brain injury screen (MRBRscreen) in the acute care setting in place of head CT t...

journal_title：Pediatric radiology

authors： Berger RP,Furtado AD,Flom LL,Fromkin JB,Panigrahy A

更新日期：2020-01-01 00:00:00

abstract：BACKGROUND:Alveolar rhabdomyosarcoma commonly arises in the extremities and is characterized by aggressive biology and high frequency of metastases. Whole-body imaging is increasingly employed in pediatric oncology but not recommended as standard in the staging of soft-tissue sarcomas. OBJECTIVE:After observing patien...

journal_title：Pediatric radiology

authors： Scheer M,Dantonello T,Brossart P,Dilloo D,Schweigerer L,Feuchtgruber S,Sparber-Sauer M,Vokuhl C,Bielack SS,Klingebiel T,Koscielniak E,von Kalle T,Cooperative Weichteilsarkom Studiengruppe (CWS).

更新日期：2018-05-01 00:00:00

abstract：:A simple dose-saving procedure for the diagnosis of congenital hip dysplasia employing a diaphragm in near-focus position is presented. Doses to the skin and the gonads are measured with a phantom, comparing the new and other techniques. With optimal techniques the skin dose is smaller than 2 mR and the gonadal doses ...

journal_title：Pediatric radiology

authors： Kalender W,Reither M,Schuster W

更新日期：1979-10-01 00:00:00

abstract：:Scrotal abscess in infancy is rare and, in an otherwise healthy infant, an unexpected pathology. We present a 2-week-old boy with a unilateral scrotal swelling, imaged by high-resolution sonography. Sonography with colour Doppler demonstrated an encapsulated heterogeneous mass in the left scrotum with surrounding hype...

journal_title：Pediatric radiology

authors： Breysem L,Herman M,Moerman P,Van Damme-Lombaerts R,Bogaert G,Smet M

更新日期：2006-11-01 00:00:00

abstract：:Epithelioid haemangioendothelioma has not been previously described in a patient with congenital hemihypertrophy and diabetes mellitus. Hepatic nodules were incidentally discovered on a routine US examination searching for known associated abnormalities. Pulmonary nodules were present on chest X-ray and CT of the lung...

journal_title：Pediatric radiology

authors： Miller JH,Gillet PM,Hendry GM,Wallace WH

更新日期：1999-08-01 00:00:00

abstract：:The hypothesis that the normal distribution of relative heart volume in the neonatal period is a mixture of two different populations, with different means and variances, has been tested. The definition of the two populations was (i) normally patent ductus and (ii) closed ductus arteriosus. The assumed frequencies of ...

journal_title：Pediatric radiology

authors： Ringertz HG

更新日期：1983-01-01 00:00:00

abstract：:Diffusion-weighted MRI of the brain is becoming clinically available as a tool to investigate cerebral ischaemia. We report a newborn girl presenting with seizures in whom diffusion-weighted MRI showed a large hyperintensity in the area perfused by the left middle cerebral artery. Short-term neurological follow-up bef...

journal_title：Pediatric radiology

authors： Lövblad KO,Ruoss K,Guzman R,Schroth G,Fusch C

更新日期：2001-05-01 00:00:00

abstract：:We describe a 4-year-old girl with an inflammatory pseudotumour of the pancreas, which was preceded by varicella-zoster infection. Inflammatory pseudotumour may involve a variety of tissues, the lungs and liver being typical sites of predilection. Imaging and laboratory tests are nonspecific, and for this reason the d...

journal_title：Pediatric radiology

authors： Slavotinek JP,Bourne AJ,Sage MR,Freeman JK

更新日期：2000-11-01 00:00:00

abstract：:Two different forms of dyssegmental dysplasia, mild and severe, can be distinguished on clinical, radiographic and chondro-osseous morphologic grounds. The milder Rolland-Desbuquois type is frequently characterised by survival beyond the newborn period. The lethal Silverman-Handmaker type has distinctive and more seve...

journal_title：Pediatric radiology

authors： d'Orey MC,Mateus M,Guimarães H,Miguel C,Costeira MJ,Nogueira R,Montenegro N,Santos NT,Maroteaux P

更新日期：1997-12-01 00:00:00

abstract：:Purpose. To determine whether gadolinium-enhanced MR imaging can detect early reversible ischemia of the capital femoral epiphysis and physis induced by hip hyperabduction in piglets. Materials and methods. Thirteen 1- to 3-week-old piglets were placed in maximal abduction of both hips and studied with dynamic gadolin...

journal_title：Pediatric radiology

authors： Jaramillo D,Villegas-Medina OL,Doty DK,Dwek JR,Ransil BJ,Mulkern RV,Shapiro F

更新日期：1995-01-01 00:00:00

abstract：BACKGROUND:Demand for pediatric cardiac computed tomography (CT) angiography is increasing due to recent advances that reduce the need for sedation and radiation exposure while enhancing diagnostic accuracy. This has resulted in the increasing use of cardiac CT angiography emergently during weekends and after hours. Th...

journal_title：Pediatric radiology

authors： May LA,More SR,Masand PM,Ketwaroo PD,Krishnamurthy R,Jadhav SP

更新日期：2020-07-01 00:00:00

abstract：:A patient with the characteristic changes of Sturge-Weber syndrome on the right side was found to have a large arteriovenous malformation on the left side which involved the superior ophthalmic vein. This association, although previously reported, is extremely rare. ...

journal_title：Pediatric radiology

authors： Laufer L,Cohen A

更新日期：1994-01-01 00:00:00

abstract：:We present two cases of benign retroperitoneal lipomas in children. Intravenous urography in both revealed large masses of fat density displacing the ipsilateral kidney superomediad. Angiography in one showed an avascular mass. The other patient had a markedly echogenic mass with indistinct margins on ultrasonography,...

journal_title：Pediatric radiology

authors： Bowen A,Gaisie G,Bron K

更新日期：1982-01-01 00:00:00

abstract：:About one-half of patients with meconium ileus (MI) present with a complication such as volvulus, atresia, meconium peritonitis or giant cystic meconium peritonitis. The treatment of these complications requires surgery. However, the preoperative diagnosis of complicated MI is difficult. We describe two neonates with ...

journal_title：Pediatric radiology

authors： Navarro OM,Daneman A,Miller SF

更新日期：2004-12-01 00:00:00

abstract：:The discovery of fetal skeletal abnormality on prenatal US mandates an extended study of the fetus. This extended examination includes specific views and measurements of the fetal skeleton. Lethality can be predicted if severe pulmonary hypoplasia is present. Specific diagnosis of a fetal osteochondrodysplasia is diff...

journal_title：Pediatric radiology

authors： Teele RL

更新日期：2006-06-01 00:00:00

abstract：:Cystic dysplasia of the testis is an uncommon benign cause of an intratesticular mass in children. It is often associated with renal abnormalities, which reflects the close developmental association between the kidneys and testes. The diagnosis is usually suspected based on sonographic findings. We present a case of c...

journal_title：Pediatric radiology

authors： Levin TL,Kogan SJ

更新日期：1998-12-01 00:00:00

abstract：BACKGROUND:Myocardial T1 relaxometry can be performed by contouring on individual T1-weighted source images (source method) or on a single T1 map (mapping method). OBJECTIVE:This study compares (a) agreement between native T1 and extracellular volume results of the two methods and (b) interobserver reproducibility of ...

journal_title：Pediatric radiology

authors： Lam CZ,Pagano JJ,Yim D,Yoo SJ,Seed M,Grosse-Wortmann L

更新日期：2019-08-01 00:00:00