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https://www.readbyqxmd.com/read/29166493/dystrophic-calcification-of-maxillary-sinus-in-pediatric-patients-with-liver-transplantation-and-pigmentation-of-dental-organ
#1
Adriana Furtado de Macedo, Claudio Costa, Regina Helena Guedes da Motta Mattar, Ramiro Anthero de Azevedo
OBJECTIVE: To report a case of severe dystrophic calcification in maxillary sinus of a child with liver transplantation and dental organs pigmented by hyperbilirubinemia. CASE DESCRIPTION: female patient, 12 years old, with liver transplantation performed at the age of 7 due to extrahepatic biliary atresia (EHBA). The patient was receiving the immunosuppressant tacrolimus (2 mg daily). Intraoral clinical exam showed tooth green pigmentation by bilirubin. Cone-beam volumetric computed tomography (CT) was performed to verify radiographic density of pigmented dental elements...
November 17, 2017: Revista Paulista de Pediatria: Orgão Oficial da Sociedade de Pediatria de São Paulo
https://www.readbyqxmd.com/read/29166461/presumed-zika-virus-related-congenital-brain-malformations-the-spectrum-of-ct-and-mri-findings-in-fetuses-and-newborns
#2
José Daniel Vieira de Castro, Licia Pacheco Pereira, Daniel Aguiar Dias, Lindenberg Barbosa Aguiar, Joanira Costa Nogueira Maia, Jesus Irajacy Fernandes da Costa, Eveline Campos Monteiro de Castro, Francisco Edson de Lucena Feitosa, Francisco Herlânio Costa Carvalho
OBJECTIVE: The new epidemic of Zika virus infection raises grave concerns, especially with the increasingly-recognized link between emerging cases of microcephaly and this infectious disease. Besides small cranial dimensions, there are striking morphologic anomalies in the fetal brain. Key anomalies include cortical developmental malformations and a peculiar distribution of pathologic calcifications. These potentially indicate a new pattern of congenital central nervous system infection...
October 2017: Arquivos de Neuro-psiquiatria
https://www.readbyqxmd.com/read/29166425/anatomy-of-the-sphenopalatine-artery-and-its-implications-for-transnasal-neurosurgery
#3
M Eordogh, A Grimm, I Gawish, L Patonay, R Reisch, H R Briner, G Baksa
BACKGROUND: The knowledge of sinonasal vasculature is inevitable in transnasal neurosurgery. We performed an anatomical study on the sphenopalatine artery from the perspective of skull base procedures. METHODOLOGY: To analyse the anatomical landmarks of the sphenopalatine artery, arterial skull corrosion casts (26 head halves) underwent endoscopic transnasal phantom surgery. Furthermore, we performed microsurgical dissection on formaldehyde-fixated cadavers with arterial perfusion (14 head halves) as well as studied Cone Beam CT-scans of anonymised patients and cadavers (115 head sides)...
November 22, 2017: Rhinology
https://www.readbyqxmd.com/read/29166329/pseudolesions-impersonating-osseous-tumor-involvement-on-both-contrast-enhanced-ct-and-fdg-pet-ct
#4
Jessica K Peterson, Rustain L Morgan, Joseph S Donald, Mark A Perry
A 27-year-old man with stage IV-B Hodgkin's lymphoma status post autologous peripheral stem cell transplant in 2015 with complete response, presented in 2017 with increasing back pain. Restaging contrast enhanced CT demonstrated left brachiocephalic vein occlusion with peripheral nodular high density areas within C7-T2 vertebral bodies with corresponding radiotracer uptake on same day PET/CT. No matching lesion was seen on noncontrast CT. Findings were consistent with pooling of contrast and radiotracer within vertebral venous plexus collaterals at the cervicothoracic junction secondary to brachiocephalic vein occlusion...
November 22, 2017: Clinical Nuclear Medicine
https://www.readbyqxmd.com/read/29166147/preliminary-results-of-lung-cancer-screening-in-a-socioeconomically-disadvantaged-population
#5
Phillip L Guichet, Beringia Y Liu, Bhushan Desai, Zul Surani, Steven Y Cen, Christopher Lee
OBJECTIVE: The objective of our study was to describe the preliminary results of our clinical low-dose CT (LDCT) lung cancer screening program targeting a minority, socioeconomically disadvantaged, high-risk population different from that studied in the National Lung Screening Trial (NLST). MATERIALS AND METHODS: Community partner clinics in an underserved region of south Los Angeles County referred interested candidates to our program. All patients met National Comprehensive Cancer Network eligibility criteria for lung cancer screening...
November 22, 2017: AJR. American Journal of Roentgenology
https://www.readbyqxmd.com/read/29166132/imaging-of-iatrogenic-esophageal-injuries-using-optimized-ct-esophageal-leak-protocol-pearls-and-pitfalls
#6
Rachna Madan, Olga Laur, Breland Crudup, Latia Peavy, Brett W Carter
Iatrogenic injury to the esophagus is a serious complication which is increasingly seen in clinical practice secondary to expansion and greater acceptability of surgical and endoscopic esophageal procedures. Morbidity and mortality following such injury is high. This is mostly due to an inflammatory response to gastric contents in the mediastinum, and the negative intra-thoracic pressures that may further draw out esophageal contents into the mediastinum leading to mediastinitis. Subsequently, pulmonary complications such as pneumonia or abscess may ensue leading to rapid clinical deterioration...
November 22, 2017: British Journal of Radiology
https://www.readbyqxmd.com/read/29165524/-bartonella-henselae-infection-the-importance-of-images-for-diagnosis-and-follow-up
#7
M Fernanda Tapia, Reinaldo Rosas, Giancarlo Schiappacasse, Luis Thompson
Bartonella henselae infection is a frequent zoonosis from the domestic cat. It is presented with regional lymphadenitis in the majority of cases. Searching and characterization of lymph nodes by diagnostic imaging can be useful in the differential diagnosis approach, with a clear advantage, because it is a noninvasive method. Currently, new diagnostic imaging techniques improves the quality of screening and characterization of adenopathies, such is the case of PET/CT, which allows a better evaluation of hypermetabolic lymph nodes, without considering the individual growth of each lymph node...
August 2017: Revista Chilena de Infectología: órgano Oficial de la Sociedad Chilena de Infectología
https://www.readbyqxmd.com/read/29165044/lyp-1-conjugated-fe3o4-nanoparticles-suppress-tumor-growth-by-magnetic-induction-hyperthermia
#8
Peishan Teo, Xiaowen Wang, Jieying Zhang, Han Zhang, Xin Yang, Yun Huang, Jintian Tang
To find a promising drug carrier to suppress tumor using magnetic induction hyperthermia (MIH) and targeted therapy, two superparamagnetic iron oxide nanoparticles (SPIONs) coated with polyethylene glycol (PEG) and LyP-1, respectively, were prepared and compared. The particle size ranges of PEG-SPIONs and LyP-1-SPIONs were 10~15nm, and 15~20nm, respectively. In FTIR spectra, PEG-SPIONs and LyP-1-SPIONs had strong peaks between 575 and 1630 cm(-1). Specifically, the PEG-SPIONs mainly has peaks in 581 and 1630 cm(-1)...
November 22, 2017: Journal of Biomaterials Science. Polymer Edition
https://www.readbyqxmd.com/read/29164573/role-of-perfusion-ct-in-the-evaluation-of-metastatic-nodal-tumor-response-after-radiochemotherapy-in-head-and-neck-cancer-preliminary-findings
#9
S Ursino, L Faggioni, F Fiorica, D Delishaj, V Seccia, F Pasqualetti, I Desideri, C Colosimo, R Morganti, F Paiar, D Caramella
OBJECTIVE: To assess changes of CT perfusion parameters (ΔPCTp) of cervical lymph node metastases from head and neck cancer (HNC) before and after radiochemotherapy (RT-CT) and their association with nodal tumor persistence. PATIENTS AND METHODS: Eligibility criteria included HNC (Stage III-IV) candidates for RT-CT. Patients underwent perfusion CT (PCT) at baseline 3 weeks and 3 months after RT-CT. Blood volume (BV), blood flow (BF), mean transit time (MTT) and permeability surface (PS) were calculated...
November 2017: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/29164479/spectro-analytical-computational-and-in-vitro-biological-studies-of-novel-substituted-quinolone-hydrazone-and-it-s-metal-complexes
#10
Narsimha Nagula, Sudeepa Kunche, Mohmed Jaheer, Ravi Mudavath, Sreekanth Sivan, Sarala Devi Ch
Some novel transition metal [Cu (II), Ni (II) and Co (II)] complexes of nalidixic acid hydrazone have been prepared and characterized by employing spectro-analytical techniques viz: elemental analysis, (1)H-NMR, Mass, UV-Vis, IR, TGA-DTA, SEM-EDX, ESR and Spectrophotometry studies. The HyperChem 7.5 software was used for geometry optimization of title compound in its molecular and ionic forms. Quantum mechanical parameters, contour maps of highest occupied molecular orbitals (HOMO) and lowest unoccupied molecular orbitals (LUMO) and corresponding binding energy values were computed using semi empirical single point PM3 method...
November 21, 2017: Journal of Fluorescence
https://www.readbyqxmd.com/read/29164450/accuracy-of-early-ct-findings-for-predicting-disease-course-in-patients-with-acute-pancreatitis
#11
Onur Taydas, Emre Unal, Ali Devrim Karaosmanoglu, Mehmet Ruhi Onur, Erhan Akpinar
PURPOSE: To investigate whether computed tomography (CT)-based scoring systems obtained within 72 h of symptoms onset can predict disease course in acute pancreatitis. METHODS: Between October 2007 and December 2015, 189 patients (age range 21-93 years) who underwent abdominopelvic CT for the diagnosis of acute pancreatitis were included in the study. Balthazar grade and original and modified versions of CT severity index (CTSI) measurements were carried out for each patient...
November 21, 2017: Japanese Journal of Radiology
https://www.readbyqxmd.com/read/29164284/uncommon-observation-of-bifocal-giant-subchondral-cysts-in-the-hip-diagnostic-role-of-ct-arthrography-and-mri-with-pathological-correlation
#12
Pauline Gonzalez-Espino, Maïté Van Cauter, Louis Gossing, Christine C Galant, Souad Acid, Frederic E Lecouvet
Subchondral cysts (or geodes) are common in osteoarthritis (OA), usually in association with other typical signs, i.e., joint space narrowing, subchondral bone sclerosis, and osteophytosis. However, large lesions without the typical signs of OA or lesions located outside the weight-bearing areas are unusual and may be confused for other conditions, in particular, those of tumoral origin. We report the findings in a 48-year-old man who had been complaining of left buttock pain for 3 years, getting worse over the last year, and an evolutive limited range of motion of the hip...
November 21, 2017: Skeletal Radiology
https://www.readbyqxmd.com/read/29164174/early-life-pseudomonas-aeruginosa-infection-in-cystic-fibrosis-and-lung-disease-progression
#13
Argyri Petrocheilou, Maria Papagrigoriou-Theodoridou, Athanasios Michos, Stavros-Eleftherios Doudounakis, Ioanna Loukou, Athanasios Kaditis
Lung disease in cystic fibrosis (CF) starts early, with studies identifying abnormalities on chest computed tomography (CT) scan even in infancy. In this retrospective study, abnormal chest CT was the main outcome; body mass index (BMI) z score and forced expiratory volume percent predicted (FEV1%) predicted at age 6 to 7 years were secondary outcomes. Pseudomonas aeruginosa infection prior to 12 months of age was the main explanatory variable. There was no association between early P aeruginosa infection and abnormal CT after adjustment for CFTR (cystic fibrosis transmembrane conductance regulator) functional mutation class, gender, and other pathogens (odds ratio = 0...
2017: Global Pediatric Health
https://www.readbyqxmd.com/read/29163637/association-between-tgf-%C3%AE-1-polymorphisms-and-head-and-neck-cancer-risk-a-meta-analysis
#14
Quan Shi, Xing Wang, Chuan Cai, Shuo Yang, Na Huo, Hongchen Liu
Background and Objective: Studies have been conducted to explore the association between the single nucleotide polymorphisms (SNPs) in transforming growth factor beta 1 (TGF-β1) and head and neck cancer (HNC) susceptibility, however the findings are still inconclusive. Therefore, we conduct this meta-analysis to quantitatively assess the association. Methods: Embase and PubMed were searched for all eligible clinical studies. The odds ratio (OR) and 95% confidence interval (CI) of each study were pooled to estimate the association between SNPs in the TGF-β1 and the HNC risk...
2017: Frontiers in Genetics
https://www.readbyqxmd.com/read/29163345/fluid-distribution-pattern-in-adult-onset-congenital-idiopathic-and-secondary-normal-pressure-hydrocephalus-implications-for-clinical-care
#15
Shigeki Yamada, Masatsune Ishikawa, Kazuo Yamamoto
Objective: In spite of growing evidence of idiopathic normal-pressure hydrocephalus (NPH), a viewpoint about clinical care for idiopathic NPH is still controversial. A continuous divergence of viewpoints might be due to confusing classifications of idiopathic and adult-onset congenital NPH. To elucidate the classification of NPH, we propose that adult-onset congenital NPH should be explicitly distinguished from idiopathic and secondary NPH. Methods: On the basis of conventional CT scan or MRI, idiopathic NPH was defined as narrow sulci at the high convexity in concurrent with enlargement of the ventricles, basal cistern and Sylvian fissure, whereas adult-onset congenital NPH was defined as huge ventricles without high-convexity tightness...
2017: Frontiers in Neurology
https://www.readbyqxmd.com/read/29163289/network-approach-to-understanding-emotion-dynamics-in-relation-to-childhood-trauma-and-genetic-liability-to-psychopathology-replication-of-a-prospective-experience-sampling-analysis
#16
Laila Hasmi, Marjan Drukker, Sinan Guloksuz, Claudia Menne-Lothmann, Jeroen Decoster, Ruud van Winkel, Dina Collip, Philippe Delespaul, Marc De Hert, Catherine Derom, Evert Thiery, Nele Jacobs, Bart P F Rutten, Marieke Wichers, Jim van Os
Background: The network analysis of intensive time series data collected using the Experience Sampling Method (ESM) may provide vital information in gaining insight into the link between emotion regulation and vulnerability to psychopathology. The aim of this study was to apply the network approach to investigate whether genetic liability (GL) to psychopathology and childhood trauma (CT) are associated with the network structure of the emotions "cheerful," "insecure," "relaxed," "anxious," "irritated," and "down"-collected using the ESM method...
2017: Frontiers in Psychology
https://www.readbyqxmd.com/read/29163207/a-new-personalized-cooling-protocol-to-activate-brown-adipose-tissue-in-young-adults
#17
Borja Martinez-Tellez, Guillermo Sanchez-Delgado, Yolanda Garcia-Rivero, Juan M A Alcantara, Wendy D Martinez-Avila, Maria V Muñoz-Hernandez, Josune Olza, Mariëtte R Boon, Patrick C N Rensen, Jose M Llamas-Elvira, Jonatan R Ruiz
Brown adipose tissue (BAT) activity is induced when humans are exposed to cold. Therefore, cold exposure prior to the (18)F-FDG-PET/CT scan is used as a tool to quantify BAT. Several cooling protocols, including fixed and personalized ones are currently in use. The aim of the present study was to determine the effect of a new personalized cooling protocol where the shivering threshold was measured on a separate day, on BAT volume and activity in young adults. A total of 47 adults (n = 28 women) aged 22 ± 2 years participated in the study...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/29162868/via-mucosa-incision-eus-guided-sampling-for-the-diagnosis-of-conventional-endoscopic-biopsy-negative-gastric-wall-thickening
#18
Hongbo Shan, Xiaoyan Gao, Guangyu Luo, Jieqing Xiang, Bilv Zhong, Xiaofang Qiu, Shiyong Lin, Shuhong Li, Yin Li, Guoliang Xu, Rong Zhang
Abnormal thickened lesions of the gastric wall are usually covered with normal mucosa. Conventional endoscopic biopsies often do not yield sufficient positive histological results for clinical treatment. To increase the rate of diagnosis of conventional endoscopic biopsy-negative gastric wall thickening, we used an endoscopic submucosal dissection (ESD)-like sampling method under endoscopic ultrasound (EUS) guidance to obtain tissue of gastric wall-thickening lesions. Between 2012 and 2016, patients with gastric wall thickening (as identified by computed tomography (CT), EUS or other imaging methods that showed no positive findings in repeating conventional endoscopic biopsy) underwent via mucosa incision EUS-guided sampling...
November 21, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29162443/visualization-of-the-inferoposterior-thoracic-wall-vip-and-boomerang-signs-novel-sonographic-signs-of-right-pleural-effusion
#19
James Siu Ki Lau, Chi Kit Yuen, Ka Leung Mok, Wing Wa Yan, Pui Gay Kan
OBJECTIVES: This study is to present the diagnostic values of the novel sonographic visualization of the inferoposterior thoracic wall (VIP) and boomerang signs in detecting right pleural effusion by sonologists with little to no experience in ultrasound. METHODS: A prospective analysis of a convenience sample of patients who were assessed by junior intensive care physicians was performed. The patients all underwent computed tomography (CT) of the chest or abdomen with lung bases as part of their care regardless of indication; the results were interpreted by radiologists and were considered the gold standard...
November 15, 2017: American Journal of Emergency Medicine
https://www.readbyqxmd.com/read/29162229/design-of-experiments-confirms-optimization-of-lithium-administration-parameters-for-enhanced-fracture-healing
#20
Kathak Vachhani, Andrea Pagotto, Yufa Wang, Cari Whyne, Diane Nam
Fracture healing is a lengthy process which fails in 5-10% of cases. Lithium, a low-cost therapeutic used in psychiatric medicine, up-regulates the canonical Wingless pathway crucial for osteoblastic mineralization in fracture healing. A design-of-experiments (DOE) methodology was used to optimize lithium administration parameters (dose, onset time and treatment duration) to enhance healing in a rat femoral fracture model. In the previously completed first stage (screening), onset time was found to significantly impact healing, with later (day 7 vs...
October 28, 2017: Journal of Biomechanics
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