Journal of Adolescent and Young Adult Oncology, Ahead of Print.
Fri May 15, 2020 10:00
COVID-2019. How to decrease the risk of infection in dental practice? Minerva Stomatol. 2020 May 14;: Authors: Sales PH, Sales PL, Da Hora Sales ML Abstract A new Pandemic classified by the World Health Organization and called COVID-19, is causing widespread respiratory infections and deaths in several countries on the 5 continents. Although it does not have a high lethality rate, this new virus can present rates of complications and hospitalizations...
Fri May 15, 2020 22:47
Tissue level implants in healthy versus medically compromised patients. A cohort comparative study. Minerva Stomatol. 2020 May 14;: Authors: Marchio V, Derchi G, Cinquini C, Miceli M, Gabriele M, Alfonsi F, Barone A Abstract BACKGROUND: Dental implants placed in medically compromised patients have predictable outcomes and a high rate of survival, compared to those placed in healthy patients. The aims of this study were to observe and compare implant...
Fri May 15, 2020 22:47
A split-mouth study comparing piezo electric surgery and traditional rotary burs on impacted third molars in young patients: an intraoperative and postoperative evaluation. Minerva Stomatol. 2020 May 14;: Authors: Zara F, De Sanctis CM, Dede FC, Bossù M, Sfasciotti GL Abstract BACKGROUND: Surgery has been used in many different medical fields, for instance it is used in the field of oral surgery, as a valuable alternative to traditional rotary burs....
Fri May 15, 2020 22:47
Oral manifestation in chronic kidney disease patients undergoing haemodialysis- a hospital based study. Minerva Stomatol. 2020 May 14;: Authors: Kumar S, Vineetha R, Pai KM, Prabhu R, Patil V, Smriti K Abstract BACKGROUND: Chronic kidney disease(CKD-HD) patients undergoing routine hemodialysis have been reported to have oral signs and symptoms due to disease process or various comorbidities like Diabetes mellitus(DM). Both CKD and DM can cause oral changes....
Fri May 15, 2020 22:47
Transcortical bone capillary vessels network: implication on the maxillofacial district. Minerva Stomatol. 2020 May 14;: Authors: Fiorillo L, Cervino G, Russo D, Itro A, Laino L, Cicciù M Abstract BACKGROUND: The field of medicine takes steps forward every day. Although some aspects of our organism seem clear, scientific discoveries also affect fields such as anatomy. Recently, transcortical vessels (TCVs) have been debated, although it was thought that...
Fri May 15, 2020 22:47
BACKGROUND AND PURPOSE:Identifying the mere presence of carotid intraplaque hemorrhage would be insufficient to accurately discriminate the presence of acute cerebral infarct. We aimed to investigate the association between signal intensity ratios of carotid intraplaque hemorrhage on T1-weighted MR imaging and acute cerebral infarct in patients with hemorrhagic carotid plaques using MR vessel wall imaging. MATERIALS AND METHODS:Symptomatic patients with carotid intraplaque hemorrhage were included....
Fri May 15, 2020 20:28
Fri May 15, 2020 20:28
BACKGROUND AND PURPOSE:2D measurements of diffuse intrinsic pontine gliomas are limited by variability, and volumetric response criteria are poorly defined. Semiautomated 2D measurements may improve consistency; however, the impact on tumor response assessments is unknown. The purpose of this study was to compare manual 2D, semiautomated 2D, and volumetric measurement strategies for diffuse intrinsic pontine gliomas. MATERIALS AND METHODS:This study evaluated patients with diffuse intrinsic pontine...
Fri May 15, 2020 20:28
Fri May 15, 2020 20:28
BACKGROUND AND PURPOSE:Focal signal abnormalities at the depth of the cerebellar fissures in children have recently been reported to represent a novel pattern of bottom-of-fissure dysplasia. We describe a series of patients with a similar distribution and appearance of cerebellar signal abnormality attributable to watershed injury. MATERIALS AND METHODS:Twenty-three children with MR imaging findings of focal T2 prolongation in the cerebellar gray matter and immediate subjacent white matter at the...
Fri May 15, 2020 20:28
BACKGROUND AND PURPOSE:Previous studies in acute ischemic stroke have demonstrated the importance of minimizing delays to endovascular treatment and keeping thrombectomy procedural times at <30–60 minutes. The purpose of this study was to investigate the impact of thrombectomy procedural times on clinical outcomes. MATERIALS AND METHODS:We retrospectively compared 319 patients having undergone thrombectomy according to procedural time (<30 minutes, 30–60 minutes, and >60 minutes) and time...
Fri May 15, 2020 20:28
BACKGROUND AND PURPOSE:MR imaging is a useful and widely used evaluation for chordomas. Prior studies have classified chordomas into cell-dense type and matrix-rich type according to the ultrastructural features. However, the relationship between the MR imaging signal intensity and ultrastructural classification is unknown. We hypothesized that MR imaging signal intensity may predict both tumor ultrastructural classification and prognosis. MATERIALS AND METHODS:Seventy-nine patients with skull...
Fri May 15, 2020 20:28
BACKGROUND AND PURPOSE:Identification of a partial/complete chemotherapy response in pediatric patients with intracranial germ cell tumors is clinically important for radiation treatment and management. Partial/complete response is conventionally determined on postcontrast MR imaging sequences. The purpose of this study was to assess the diagnostic utility of a balanced steady-state free precession sequence as an adjunct to standard MR imaging sequences for the detection of residual tumor in pediatric...
Fri May 15, 2020 20:28
BACKGROUND AND PURPOSE:Neonatal MR imaging brain volume measurements can be used as biomarkers for long-term neurodevelopmental outcome, but quantitative volumetric MR imaging data are not usually available during routine radiologic evaluation. In the current study, the feasibility of automated quantitative brain volumetry and image reconstruction via synthetic MR imaging in very preterm infants was investigated. MATERIALS AND METHODS:Conventional and synthetic T1WIs and T2WIs from 111 very preterm...
Fri May 15, 2020 20:28
BACKGROUND AND PURPOSE:The clinical benefit of pre-hematopoietic cell transplantation sinus CT screening remains uncertain, while the risks of CT radiation and anesthesia are increasingly evident. We sought to re-assess the impact of screening sinus CT on pretransplantation patient management and prediction of posttransplantation invasive fungal rhinosinusitis. MATERIALS AND METHODS:Pretransplantation noncontrast screening sinus CTs for 100 consecutive patients (mean age, 11.9 ± 5.5 years) were...
Fri May 15, 2020 20:28
SUMMARY:Treatment options for patients who develop brain metastases secondary to non-small-cell lung cancer have rapidly expanded in recent years. As a key adjunct to surgical and radiation therapy options, systemic therapies are now a critical component of the oncologic management of metastatic CNS disease in many patients with non-small-cell lung cancer. The aim of this review article was to provide a guide for radiologists, outlining the role of systemic therapies in metastatic non-small-cell...
Fri May 15, 2020 20:28
SUMMARY:CSF-venous fistula is an important treatable cause of spontaneous intracranial hypotension that is often difficult to detect using traditional imaging techniques. Herein, we describe the technical aspects and diagnostic performance of MR myelography when used for identifying CSF-venous fistulas. We report 3 cases in which the CSF-venous fistula was occult on CT myelography but readily detected using MR myelography.
Fri May 15, 2020 20:28
SUMMARY:Conventional MR imaging techniques are sensitive to pathologic changes of the brain and spinal cord seen in MS, but they lack specificity for underlying axonal and myelin integrity. By isolating the signal contribution from different tissue compartments, newly developed advanced multicompartment diffusion MR imaging models have the potential to detect specific tissue subtypes and associated injuries with increased pathologic specificity. These models include neurite orientation dispersion...
Fri May 15, 2020 20:28
BACKGROUND AND PURPOSE:Despite the improved prognostic relevance of the 2016 WHO molecular-based classification of lower-grade gliomas, variability in clinical outcome persists within existing molecular subtypes. Our aim was to determine prognostically significant metrics on preoperative MR imaging for lower-grade gliomas within currently defined molecular categories. MATERIALS AND METHODS:We undertook a retrospective analysis of 306 patients with lower-grade gliomas accrued from an institutional...
Fri May 15, 2020 20:28
BACKGROUND AND PURPOSE:Although methylphenidate is frequently used to treat children with attention-deficit/hyperactivity disorder, it is currently unknown how methylphenidate affects brain development. In a randomized controlled trial, we investigated whether the cortical effects of methylphenidate are modulated by age. MATERIALS AND METHODS:Between June 1, 2011, and June 15, 2015, we conducted a randomized, double-blind, placebo-controlled trial (Effects of Psychotropic Drugs on Developing Brain-Methylphenidate)...
Fri May 15, 2020 20:28
BACKGROUND AND PURPOSE:Recanalization after coil embolization is widely studied. However, there are limited data on how recanalized aneurysms rupture. Herein, we describe our experience with the rupture of recanalized aneurysms and discuss the type of recanalized aneurysms at greatest rupture risk. MATERIALS AND METHODS:A total of 426 unruptured aneurysms and 169 ruptured aneurysms underwent coil embolization in our institution between January 2009 and December 2017. Recanalization occurred in...
Fri May 15, 2020 20:28
BACKGROUND AND PURPOSE:Scientific collaboration is traditionally acknowledged through coauthorship. Studies on this topic are few in the neuroimaging literature. This study is a bibliometric analysis of the American Journal of Neuroradiology (AJNR) between 1980 and 2018, with the primary aim of evaluating changes in article collaboration. MATERIALS AND METHODS:Full bibliographic records from 1980 to 2018 were retrieved. Yearly metrics calculated included the number of articles published, the average...
Fri May 15, 2020 20:28
BACKGROUND AND PURPOSE:During thyroidectomy incomplete resection of the thyroid gland may occur. This complicates the imaging surveillance of these patients as residual thyroid needs to be distinguished from local recurrence. Therefore, the purpose of this study was to determine if multiphasic multi-detector computed tomography (4D-MDCT) can differentiate residual nonmalignant thyroid tissue and recurrent thyroid carcinoma after thyroidectomy. MATERIALS AND METHODS:In this retrospective study,...
Fri May 15, 2020 20:28
SUMMARY:The year 2019 featured extensive debates on transforming the United States multipayer health care system into a single-payer system. At a time when reimbursement structures are in flux and potential changes in government may affect health care, it is important for neuroradiologists to remain informed on how emerging policies may impact their practices. The purpose of this article is to examine potential ramifications for neuroradiologist reimbursement with the Medicare for All legislative...
Fri May 15, 2020 20:28
BACKGROUND AND PURPOSE:The Neck Imaging Reporting and Data System was introduced to assess the probability of recurrence in surveillance imaging after treatment of head and neck cancer. This study investigated inter- and intrareader agreement in interpreting contrast-enhanced CT after treatment of oral cavity and oropharyngeal squamous cell carcinoma. MATERIALS AND METHODS:This retrospective study analyzed CT datasets of 101 patients. Four radiologists provided the Neck Imaging Reporting and Data...
Fri May 15, 2020 20:28
BACKGROUND AND PURPOSE:The brain stem is a complex configuration of small nuclei and pathways for motor, sensory, and autonomic control that are essential for life, yet internal brain stem anatomy is difficult to characterize in living subjects. We hypothesized that the 3D fast gray matter acquisition T1 inversion recovery sequence, which uses a short inversion time to suppress signal from white matter, could improve contrast resolution of brain stem pathways and nuclei with 3T MR imaging. MATERIALS...
Fri May 15, 2020 20:28
BACKGROUND AND PURPOSE:Recent advances in molecular techniques have characterized distinct subtypes of diffuse intrinsic pontine gliomas. Our aim was the identification of MR imaging correlates of these subtypes. MATERIALS AND METHODS:Initial MRIs from subjects with diffuse intrinsic pontine gliomas recruited for a prospective clinical trial before treatment were analyzed. Retrospective imaging analyses included FLAIR/T2 tumor volume, tumor volume enhancing, the presence of cyst and/or necrosis,...
Fri May 15, 2020 20:28
BACKGROUND AND PURPOSE:Dynamic changes in cerebrovascular reactivity after acetazolamide administration vary markedly among patients with major cerebral arterial steno-occlusive disease. MR quantitative susceptibility mapping can dynamically quantify the cerebral magnetic susceptibility. The purpose of this study was to determine whether dynamic changes in susceptibility after administration of acetazolamide on 7T quantitative susceptibility mapping are associated with pre-existing states of CBV...
Fri May 15, 2020 20:28
BACKGROUND AND PURPOSE:This work investigated alterations in functional connectivity (FC) and associated structures in patients with Angelman syndrome (AS) by using integrated quantitative imaging analysis and connectivity measures. MATERIALS AND METHODS:We obtained 3T brain MR imaging, including resting-state functional MR imaging, diffusion tensor imaging, and 3D T1-weighted imaging from children with AS (n = 14) and age- and sex-matched controls (n = 28). The brains of patients with AS were...
Fri May 15, 2020 20:28
BACKGROUND AND PURPOSE:Infarct volume in acute ischemic stroke is an important prognostic marker and determines endovascular treatment decisions. This study evaluates the magnitude and potential clinical impact of the error related to partial volume effects in infarct volume measurement on diffusion-weighted MR imaging in acute stroke and explores how increasing spatial resolution could reduce this error. MATERIALS AND METHODS:Diffusion-weighted imaging of 393 patients with acute stroke, of whom...
Fri May 15, 2020 20:28
BACKGROUND AND PURPOSE:Constitutional mismatch repair deficiency is a hereditary childhood cancer predisposition syndrome characterized by brain tumors and colorectal and hematologic malignancies. Our objective was to describe the neuroimaging findings in patients with constitutional mismatch repair deficiency. MATERIALS AND METHODS:This retrospective study included 14 children with genetically confirmed constitutional mismatch repair deficiency who were referred to 2 tertiary pediatric oncology...
Fri May 15, 2020 20:28
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