Abstract:
:The objective of this study was to compare the quality of conventional and helical computed tomography (CT) images in children unable to breath-hold. Sixteen patients (age range 1.1-7.5 years) underwent both conventional and helical chest CT on a General Electric HiSpeed Advantage scanner at a mean study interval of 3.8 months. Conventional 0.6-s scans were reconstructed with standard algorithm while 1.0-s helical studies were reconstructed with standard and bone algorithms. Three blinded observers retrospectively evaluated the images. There was no significant difference in motion, image sharpness and anatomic resolution for helical and conventional scans reconstructed with standard algorithm. Furthermore, image sharpness (P < 0.001) and visibility of bronchi (P < 0.001) were improved when helical images were reconstructed with bone algorithm. We conclude that motion artifact severity, image sharpness and anatomic resolution for helical and conventional 0.6-s chest CT are similar when the images are reconstructed with an identical algorithm. Helical CT may be preferable because of the faster examination times and the ability to reconstruct overlapping images as an adjunct for problem solving. Also, with the scanner used, bone algorithm reconstruction can be employed to improve image sharpness and anatomic resolution.
journal_name
Pediatr Radioljournal_title
Pediatric radiologyauthors
Cox TD,White KS,Weinberger E,Effmann ELdoi
10.1007/BF02021699subject
Has Abstractpub_date
1995-01-01 00:00:00pages
347-9issue
5eissn
0301-0449issn
1432-1998journal_volume
25pub_type
杂志文章abstract::Complete fracture-separation of humeral epiphyses, proximal or distal, represents unusual skeletal injuries in the battered infant. Radiographic identification of the type and extent of epiphyseal injury may be difficult due to lack of ossified epiphyseal centers. While arthrography can be a useful diagnostic and ther...
journal_title:Pediatric radiology
pub_type: 杂志文章
doi:10.1007/BF00975189
更新日期:1981-02-01 00:00:00
abstract::The imaging procedures utilized at presentation in the diagnostic work-up of 19 children with Burkitt lymphoma were reviewed. The distribution of disease was compared to other tumors of childhood so that the most valuable modalities could be identified. Burkitt lymphoma is a rapidly growing tumor in the child, making ...
journal_title:Pediatric radiology
pub_type: 杂志文章
doi:10.1007/BF02388718
更新日期:1985-01-01 00:00:00
abstract::We retrospectively reviewed the imaging and surgical findings in 17 patients with duodenal atresia to determine (a) the frequency of coexistent malrotation in patients with duodenal atresia and (b) the reliability of the upper gastrointestinal barium study (UGI) in differentiating malrotation from postoperative deform...
journal_title:Pediatric radiology
pub_type: 杂志文章
doi:10.1007/BF02012180
更新日期:1994-01-01 00:00:00
abstract::A calcified thrombus in the inferior vena cava of infants and children may be imaged by computed tomography. The precise location of the calcification within the inferior vena cava may be confirmed by computed tomographic scanning during injection of intravenous contrast material. ...
journal_title:Pediatric radiology
pub_type: 杂志文章
doi:10.1007/BF01001751
更新日期:1980-11-01 00:00:00
abstract::Imaging plays a major role in the diagnostic work-up of children with hepatobiliary or pancreatic diseases. It consists mainly of US, CT and MRI, with US and MRI being the preferred imaging modalities because of the lack of ionizing radiation. In this review the technique of US, CT and MRI in children will be addresse...
journal_title:Pediatric radiology
pub_type: 杂志文章,评审
doi:10.1007/s00247-010-1858-5
更新日期:2011-01-01 00:00:00
abstract::Intravesical catheter knotting during micturating cystourethrography is a rare but recognized complication of the procedure. We were able to untangle a knot utilizing a fluoroscopically guided vascular guidewire. Following this success, a small study was performed using a model. Various types of guidewires and techniq...
journal_title:Pediatric radiology
pub_type: 杂志文章
doi:10.1007/s00247-007-0426-0
更新日期:2007-04-01 00:00:00
abstract::A case of pyelocalyceal diverticula in a patient with the Beckwith-Wiedemann syndrome is presented. The abnormalities were first identified on screening ultrasound and confirmed at excretory urography. The diverticula in this syndrome are likely secondary to hereditary embryopathy of the kidneys. ...
journal_title:Pediatric radiology
pub_type: 杂志文章
doi:10.1007/BF02386605
更新日期:1987-01-01 00:00:00
abstract::With the increased importance of CT radiation dose to health care providers, patients and the general public, there is an increased responsibility to minimize patient dose effectively. Bismuth shields offer a simple strategy to reduce dose to certain anterior radiosensitive organs such as breasts and eyes. However, in...
journal_title:Pediatric radiology
pub_type: 杂志文章
doi:10.1007/s00247-014-3084-z
更新日期:2014-10-01 00:00:00
abstract::Three children with neurofibromatosis involving the lower urinary tract are reported and their clinical, radiological and pathological findings are described. Lower urinary tract involvement in neurofibromatosis has previously been reported in 17 children, 12 of whom had other stigmata of von Recklinghausens disease. ...
journal_title:Pediatric radiology
pub_type: 杂志文章
doi:10.1007/BF00975350
更新日期:1976-04-14 00:00:00
abstract:BACKGROUND:There are few data regarding the frequency and type of diagnostic errors made by radiology residents and fellows ("trainees"). However, increasing interest in reducing medical errors highlights the need to analyze which areas of medical knowledge are most problematic for physicians-in-training, including rad...
journal_title:Pediatric radiology
pub_type: 杂志文章
doi:10.1007/s00247-004-1150-7
更新日期:2004-04-01 00:00:00
abstract:BACKGROUND:Pulmonary alveolar proteinosis (PAP) is characterized by an abnormal accumulation of periodic acid-schiff-positive lipoproteinaceous material in the alveoli. Early diagnosis allows setting up of therapeutic lung lavages, which reduces the need for oxygen supplementation and weight gain. OBJECTIVE:To provide...
journal_title:Pediatric radiology
pub_type: 杂志文章
doi:10.1007/s00247-014-2888-1
更新日期:2014-07-01 00:00:00
abstract:BACKGROUND:Subglottic haemangioma causes progressive and life-threatening stridor, typically manifesting at age 2-3 months. Standard diagnosis is by laryngoscopy. Larynx sonography is rarely used but allows assessment of the presence and extension of a mass that impinges on the subglottic airway. The additional use of ...
journal_title:Pediatric radiology
pub_type: 杂志文章
doi:10.1007/s00247-011-2213-1
更新日期:2011-11-01 00:00:00
abstract::The published version of this article incorrectly lists the authors' affiliations. The correct affiliations are given below. The Publisher regrets this mistake. ...
journal_title:Pediatric radiology
pub_type: 杂志文章,已发布勘误
doi:10.1007/s00247-017-4064-x
更新日期:2018-07-01 00:00:00
abstract:: ...
journal_title:Pediatric radiology
pub_type: 评论,信件
doi:10.1007/s00247-019-04341-4
更新日期:2019-03-01 00:00:00
abstract::The need for X-ray investigations of the urinary tract at the time of the first proven urinary infection, even in older girls, is stressed. This policy is the best way to detect chronic pyelonephritis and congenital anomalies of the urinary tract and provide timely and appropriate treatment. These conclusions are supp...
journal_title:Pediatric radiology
pub_type: 杂志文章
doi:10.1007/BF00972109
更新日期:1977-10-28 00:00:00
abstract:BACKGROUND:Emergent MRI is now a viable alternative to CT for evaluating appendicitis while avoiding the detrimental effects of ionizing radiation. However, primary employment of MRI in the setting of clinically suspected pediatric appendicitis has remained significantly underutilized. OBJECTIVE:To describe our instit...
journal_title:Pediatric radiology
pub_type: 杂志文章
doi:10.1007/s00247-012-2412-4
更新日期:2012-09-01 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 infants and children the association of paravertebral widening and abdominal tumour has been regarded as typical of neuroblastoma. However, a paraspinal mass may develop in other malignant tumours too, but seems to be extremely rare in nephroblastoma. The fourth case so far on record is reported. Microscopically th...
journal_title:Pediatric radiology
pub_type: 杂志文章
doi:10.1007/BF00971775
更新日期:1982-01-01 00:00:00
abstract::The diagnosis of an atypical pneumomediastinum in a newborn was confirmed by ultrasound where an echogenic rim of air was noted around the heart. Ultrasound is suggested as an alternative to a decubitus film in differentiating between a pneumomediastinum (which usually resolves spontaneously) and a medial pneumothorax...
journal_title:Pediatric radiology
pub_type: 杂志文章
doi:10.1007/BF02013517
更新日期:1992-01-01 00:00:00
abstract:BACKGROUND:Radiologic reports of "normal" chest are not uncommon when there clearly are irregularities of sternal ossification and maturation. Analysis of imaging studies of sternal deformities for growth disturbances is not common in the literature and is addressed in this manuscript. OBJECTIVE:To determine the influ...
journal_title:Pediatric radiology
pub_type: 杂志文章
doi:10.1007/s002470050602
更新日期:1999-05-01 00:00:00
abstract::This paper is a comprehensive review of the Doppler waveform appearance of ureteric jets. Six jet waveform patterns have been identified: monophasic, biphasic, triphasic, polyphasic, square and continuous. Details of the physical properties of jet patterns and their changes under various physiological conditions are i...
journal_title:Pediatric radiology
pub_type: 杂志文章,评审
doi:10.1007/s00247-007-0433-1
更新日期:2007-05-01 00:00:00
abstract::The anatomical anomalies that characterize septo-optic-dysplasia (deMorsier Syndrome) are variable and often subtle. We report imaging studies of nine patients with septo-optic-dysplasia which provide radiologic and ultrasonographic clues to this disorder. In addition, we propose that cerebral schizencephaly may be a ...
journal_title:Pediatric radiology
pub_type: 杂志文章
doi:10.1007/BF02388642
更新日期:1989-01-01 00:00:00
abstract::We report a unique case of cobblestone complex using post-mortem MR and diffusion tensor imaging to assess the laminar organization of the fetal cerebrum. The imaging findings were correlated with autopsy findings. Abnormal cortical development in cobblestone complex resulted in disruption of normal laminar organizati...
journal_title:Pediatric radiology
pub_type: 杂志文章
doi:10.1007/s00247-009-1255-0
更新日期:2009-08-01 00:00:00
abstract::Details of a female infant, who was born after 29 weeks gestation and who died within minutes of birth, are presented. The infant was hydropic, showed macroglossia and had very short limbs with normal sized hands and feet. Apart from a preductal aortic coarctation the pathological findings were confined to the skeleto...
journal_title:Pediatric radiology
pub_type: 杂志文章
doi:10.1007/BF02388725
更新日期:1985-01-01 00:00:00
abstract::Ligamentous injuries of the pediatric wrist, once thought to be relatively uncommon, are increasingly recognized in the context of acute high-energy mechanism trauma and chronic axial loading, including those encountered in both recreational and high-performance competitive sports. Recent advances in MR-based techniqu...
journal_title:Pediatric radiology
pub_type: 杂志文章,评审
doi:10.1007/s00247-018-4111-2
更新日期:2018-06-01 00:00:00
abstract:BACKGROUND:Internal hernias are uncommon in children and their clinical and imaging findings have not been widely addressed. OBJECTIVE:To determine the spectrum of clinical and imaging findings of internal hernia (IH) in children and to highlight diagnostic features. MATERIALS AND METHODS:Review of clinical, imaging ...
journal_title:Pediatric radiology
pub_type: 杂志文章
doi:10.1007/s00247-011-2158-4
更新日期:2011-12-01 00:00:00
abstract::Hemangiopericytoma (HP) is a rare vascular tumor that usually occurs in adults, but 10% occur in children. Tumors occurring in the first year of life are even more rare and are referred to as infantile hemangiopericytoma. In this article, we report the imaging, operative, and pathological findings in a patient with an...
journal_title:Pediatric radiology
pub_type: 杂志文章
doi:10.1007/s002470050738
更新日期:2000-04-01 00:00:00
abstract::Imaging pediatric elbow trauma in the acute setting remains diagnostically challenging given difficult patient positioning, multiple ossification centers of the pediatric elbow, overlapping structures, and complex joint anatomy. Digital tomosynthesis is a technique where the X-ray source travels across a limited arc a...
journal_title:Pediatric radiology
pub_type: 杂志文章,评审
doi:10.1007/s00247-019-04444-y
更新日期:2019-11-01 00:00:00
abstract::The CT findings in 120 cerebral palsied children are analysed. The 72.5% positive findings are correlated with the clinical types, as well as the aetiological basis for the cerebral palsy. The spastic type, 83.3% of the total number of children, had the highest positive findings. The yield was increased in children wi...
journal_title:Pediatric radiology
pub_type: 杂志文章
doi:10.1007/BF02010628
更新日期:1989-01-01 00:00:00
abstract::Cardiovascular MRI has become an essential imaging modality in children with congenital heart disease (CHD) in the last 15-20 years. With use of appropriate sequences, it provides important information on cardiovascular anatomy, blood flow and function for initial diagnosis and post-surgical or -interventional monitor...
journal_title:Pediatric radiology
pub_type: 杂志文章
doi:10.1007/s00247-020-04885-w
更新日期:2020-12-11 00:00:00