Abstract:
BACKGROUND:Computed-tomography-guided interventions are attractive for tissue sampling of pediatric bone lesions; however, it comes with exposure to ionizing radiation, inherent to CT and magnified by multiple passes during needle localization. OBJECTIVE:We evaluate a method of CT-guided bone biopsy that minimizes ionizing radiation exposure by lowering CT scanner tube current (mAs) and voltage (kVp) during each localization scan. MATERIALS AND METHODS:We retrospectively reviewed all CT-guided bone biopsies (n = 13) over a 1-year period in 12 children. Three blinded readers identified the needle tip on the reduced-dose CT images (mAs = 50, kVp = 80) during the final localization scan at biopsy and rated the image quality as high, moderate or low. RESULTS:The image quality of the reduced-dose scans during biopsy was rated as either high or moderate, with needle tip visualized in 12 out of 13 biopsies. Twelve of 13 biopsies also returned sufficient sample for a pathological diagnosis. The average savings in exposure using the dose-reduction technique was 87%. CONCLUSION:Our results suggest that a low mAs and kVp strategy for needle localization during CT-guided bone biopsy yields a large dose reduction and produces acceptable image quality without sacrificing yield for biopsy diagnosis.
journal_name
Pediatr Radioljournal_title
Pediatric radiologyauthors
Patel AS,Soares B,Courtier J,Mackenzie JDdoi
10.1007/s00247-013-2691-4subject
Has Abstractpub_date
2013-10-01 00:00:00pages
1303-8issue
10eissn
0301-0449issn
1432-1998journal_volume
43pub_type
杂志文章abstract::The neurosonograms of fifty-eight patients treated over a four-year period with ECMO support were retrospectively reviewed for analysis of changes in interhemispheric (IHF) width while on ECMO. To correlate these measurements with patterns of development of total body edema as reflected by chest wall thickening on por...
journal_title:Pediatric radiology
pub_type: 杂志文章
doi:10.1007/BF02010805
更新日期:1990-01-01 00:00:00
abstract::A previously healthy 24-day-old boy presented with a 2-day history of fever and had a convulsion on the day of admission. MRI showed abnormal signal in the thalami, caudate nuclei and central white matter. Acute necrotising encephalopathy was diagnosed, other causes having been excluded after biochemical and haematolo...
journal_title:Pediatric radiology
pub_type: 杂志文章
doi:10.1007/s00247-003-0955-0
更新日期:2003-09-01 00:00:00
abstract::We present a 15-year-old girl with peritoneal metastases from a solid pseudopapillary tumour of the pancreas, which had been excised 6 years previously. This is the third paediatric case with metastases to be reported and the fourth patient with peritoneal carcinomatosis. ...
journal_title:Pediatric radiology
pub_type: 杂志文章
doi:10.1007/s00247-003-0875-z
更新日期:2003-04-01 00:00:00
abstract::Chylous reflux is a manifestation of primary or secondary lymphatic obstruction. Primary lymphatic obstruction is defined as lymphangiectasia and incompetency of lymphatic valves without an underlying cause. Lymphangiectasia resulting from trauma, neoplasm, irradiation, or inflammation characterizes secondary lymphati...
journal_title:Pediatric radiology
pub_type: 杂志文章
doi:10.1007/s002470050219
更新日期:1997-09-01 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
pub_type: 杂志文章
doi:10.1007/BF02011824
更新日期:1995-01-01 00:00:00
abstract:BACKGROUND:Ipsilateral deviation of the uterus (IDU) has been suggested to be specific for torsion. OBJECTIVE:To investigate the sensitivity and specificity of IDU in diagnosing torsion. MATERIALS AND METHODS:We retrospectively reviewed the pelvic US examinations in girls performed at Nationwide Children's Hospital i...
journal_title:Pediatric radiology
pub_type: 杂志文章
doi:10.1007/s00247-009-1172-2
更新日期:2009-04-01 00:00:00
abstract::While patient and family-centered care (PFCC) is currently a hot topic in medicine, it has long been a specific focus of pediatrics. The concept of PFCC includes a change in culture where physicians and patients move away from paternalism and instead view patients and families as partners in care. Although there are m...
journal_title:Pediatric radiology
pub_type: 杂志文章,评审
doi:10.1007/s00247-020-04742-w
更新日期:2020-10-01 00:00:00
abstract::Historically, the first case of congenital prepyloric membrane in an infant was documented in 1933 [1]. Since then cases have been reported only sporadically in the literature [2-8]. This is a case of congenital antral web which was identified by real-time ultrasonography, confirmed by barium meal study, and proven at...
journal_title:Pediatric radiology
pub_type: 杂志文章
doi:10.1007/BF02016251
更新日期:1992-01-01 00:00:00
abstract::An evaluation of the Siemens Digiscan has been undertaken to determine whether digital luminescence radiography (DLR) could replace conventional radiography in the examination of the neonate and young infant. Whilst the overall image quality of the digital radiograph was consistently higher than for conventional radio...
journal_title:Pediatric radiology
pub_type: 杂志文章
doi:10.1007/BF02011600
更新日期:1992-01-01 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
pub_type: 杂志文章
doi:10.1007/s00247-004-1294-5
更新日期:2004-12-01 00:00:00
abstract::We present a case of Kniest dysplasia, a rare form of the type II collagenopathies, with prenatal MRI. Sonography revealed only short limbs in the fetus. Fetal MRI findings included enlarged hyaline cartilaginous structures with abnormally high T2 signal intensity, delayed ossification of the pubic and ischial bones, ...
journal_title:Pediatric radiology
pub_type: 杂志文章
doi:10.1007/s00247-009-1444-x
更新日期:2010-03-01 00:00:00
abstract::The experience from 123 pediatric MRI examinations disclosed several different types of artifacts and age-related variants that could have caused pitfalls in MRI interpretation. Artifacts were caused by metallic objects, patient touching the RF coil, and patient motion. The potential pitfalls are caused by the MRI var...
journal_title:Pediatric radiology
pub_type: 杂志文章
doi:10.1007/BF02388605
更新日期:1985-01-01 00:00:00
abstract::The case report is presented of a neonate with a unilateral multicystic dysplastic kidney. An intravenous pyelogram revealed septations throughout this kidney with late pooling of contrast media within the cystic structures. The pathological data stresses the presence of normal appearing glomeruli interspersed between...
journal_title:Pediatric radiology
pub_type: 杂志文章
doi:10.1007/BF01000126
更新日期:1975-03-20 00:00:00
abstract:BACKGROUND:Pleural effusion at presentation in Hodgkin lymphoma has been associated with inferior outcome but has not been systematically evaluated. OBJECTIVE:To determine whether pleural effusion at presentation in children with Hodgkin lymphoma is a primary indicator of poor prognosis or secondary to associated fact...
journal_title:Pediatric radiology
pub_type: 杂志文章,随机对照试验
doi:10.1007/s00247-018-4197-6
更新日期:2018-11-01 00:00:00
abstract::Anomalous origin of the left pulmonary artery in tetralogy of Fallot was diagnosed in a 4-year-old boy be cardiac catheterization. Corrective surgery was performed. The child died immediately following the surgical procedure. Postmortem examination revealed obstructive pulmonary vascular disease of the left lung and n...
journal_title:Pediatric radiology
pub_type: 杂志文章
doi:10.1007/BF02388368
更新日期:1985-01-01 00:00:00
abstract::Ultrasound scans of 18 children with primary hepatic tumours were reviewed to assess the accuracy of ultrasound in determining hepatic origin, extent, resectability, and histology. Using basic landmarks, ultrasound correctly predicted extent and resectability in 72% of patients. Accuracy would be increased by more det...
journal_title:Pediatric radiology
pub_type: 杂志文章
doi:10.1007/BF02388402
更新日期:1988-01-01 00:00:00
abstract:BACKGROUND:Diffusion tensor parameters can be analysed by fitting regions of interest (ROIs) to selected brain structures. The clinical usefulness of these measurements is influenced by their reproducibility and validity. OBJECTIVE:To investigate the reproducibility of fractional anisotropy (FA) and mean diffusivity (...
journal_title:Pediatric radiology
pub_type: 杂志文章
doi:10.1007/s00247-011-2234-9
更新日期:2012-02-01 00:00:00
abstract::Paternal uniparental disomy for chromosome 14 (patUPD14) is a rare condition, this being the eighth report. A male infant, born prematurely, was noted to have extremely lax skin and bilateral inguinal hernias. Skin biopsy confirmed the clinical diagnosis of congenital cutis laxa, but this did not explain the limb abno...
journal_title:Pediatric radiology
pub_type: 杂志文章,评审
doi:10.1007/s00247-003-0931-8
更新日期:2003-07-01 00:00:00
abstract::A case of gastro-oesophageal intussusception was reported in 1840 by Von Rokitanski: this is rare, with only two other cases having been reported. In our patient the gastro-oesophageal intussusception followed Nissen fundoplication. ...
journal_title:Pediatric radiology
pub_type: 杂志文章
doi:10.1007/BF02019667
更新日期:1990-01-01 00:00:00
abstract::We present two patients with airway obstruction due to supraglottic swelling; one was caused by a brown spider bite on an ear (loxoscelism) and the other from eating buffalo fish. In the latter patient it was likely due to scrombroid poisoning, a histamine-like reaction, but may have been an anaphylaxic reaction. ...
journal_title:Pediatric radiology
pub_type: 杂志文章
doi:10.1007/BF02015631
更新日期:1991-01-01 00:00:00
abstract::Shaken-baby syndrome (SBS) is a type of child abuse caused by violent shaking of an infant, with or without impact, and characterized by subdural hematomas, retinal hemorrhages, and occult bone fractures. Parenchymal brain lesions in SBS may be missed or underestimated on CT scans, but can be detected at an earlier st...
journal_title:Pediatric radiology
pub_type: 杂志文章
doi:10.1007/s00247-003-1025-3
更新日期:2003-12-01 00:00:00
abstract::Ultrasound (US) has been proposed as an alternative first-line imaging modality to diagnose community-acquired pneumonia in children. Lung US has the potential benefits over chest radiography of being radiation free, subject to fewer regulatory requirements, relatively lower cost and with immediate bedside availabilit...
journal_title:Pediatric radiology
pub_type: 杂志文章,评审
doi:10.1007/s00247-017-3910-1
更新日期:2017-10-01 00:00:00
abstract::A 9-year-old boy was referred to the Oncology Department because of a thoracic soft-tissue mass thought to be a chest wall tumour. He had a history of grass inflorescence (Hordeum murinum) aspiration 2 weeks prior to this admission. On physical examination a tender soft-tissue mass under the right scapula and diminish...
journal_title:Pediatric radiology
pub_type: 杂志文章
doi:10.1007/s00247-005-0088-8
更新日期:2006-05-01 00:00:00
abstract::In a group of 70 premature and newborn infants, treated with artificial ventilation, 24.3% developed bronchopulmonary dysplasia (BPD). Only in a very few cases did the typical radiological stages, as described by Northway, succeed each other in a chronological order. It is impossible to differentiate BPD stage I or II...
journal_title:Pediatric radiology
pub_type: 杂志文章
doi:10.1007/BF00973978
更新日期:1977-03-17 00:00:00
abstract:BACKGROUND:Nusinersen, the only treatment approved by the United States Food and Drug Administration for spinal muscular atrophy (SMA), is delivered intrathecally. Many children with SMA have extensive spinal instrumentation and deformities, often precluding the use of standard approaches for gaining intrathecal access...
journal_title:Pediatric radiology
pub_type: 杂志文章
doi:10.1007/s00247-017-4031-6
更新日期:2018-03-01 00:00:00
abstract::Sickle cell disease is a major cause of pediatric stroke. Understanding the disease that affects the brain as infarctions, both clinically apparent and silent, requires an understanding of how the blood vessels are affected, the way in which both the brain and the blood vessels are imaged by MRI and MRA and the mechan...
journal_title:Pediatric radiology
pub_type: 杂志文章
doi:10.1007/s00247-005-1420-z
更新日期:2005-03-01 00:00:00
abstract::Perlman syndrome is a rare autosomal recessive syndrome of macrosomia and nephromegaly associated with a significant predisposition to Wilms tumor. We report a premature infant with Perlman syndrome to demonstrate additional manifestations of this condition: large cisterna magna, intestinal malrotation, and skeletal a...
journal_title:Pediatric radiology
pub_type: 杂志文章
doi:
更新日期:1995-11-01 00:00:00
abstract::We report a neonate with antenatal imaging features suggestive of CLOVES syndrome. Postnatal clinical and imaging findings confirmed the diagnosis, with the constellation of truncal overgrowth, cutaneous capillary malformation, lymphatic and musculoskeletal anomalies. The clinical, radiological and histopathological f...
journal_title:Pediatric radiology
pub_type: 杂志文章
doi:10.1007/s00247-010-1559-0
更新日期:2010-08-01 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
pub_type: 杂志文章
doi:10.1007/s00247-017-4066-8
更新日期:2018-05-01 00:00:00
abstract::The authors present a case of cervical chordoma which manifested in a 5-year-old boy as a dumbbell-shaped epidural tumor without bone destruction. Both CT and MRI demonstrated tumor features suggesting this diagnosis, which was confirmed by histology. ...
journal_title:Pediatric radiology
pub_type: 杂志文章
doi:10.1007/BF01403709
更新日期:1996-01-01 00:00:00