keyword
MENU ▼
Read by QxMD icon Read
search

Respiratory imaging

keyword
https://www.readbyqxmd.com/read/29334446/pediatric-community-acquired-pneumonia
#1
Stephanie Posten, Jennifer Reed
Pediatric community acquired pneumonia (CAP) is frequently encountered by medical providers and is one of the most common reasons for hospital admission. CAP is known to cause significant morbidity and mortality, causing greater than 2 million deaths annually worldwide in children younger than five years old. The Infectious Disease Society of America (IDSA) released guidelines in 2011 with recommendations regarding appropriate diagnosis and management of community acquired pneumonia for children greater than 3 months age, with the goal of assisting providers in clinical decision making...
December 2017: South Dakota Medicine: the Journal of the South Dakota State Medical Association
https://www.readbyqxmd.com/read/29333566/principles-of-management-of-central-nervous-system-infections
#2
REVIEW
Sunit Singhi, Suresh Kumar Angurana
CNS infections in children are medical emergency and are associated with high mortality and morbidity. For diagnosis, a high index of suspicion is required. Clinical assessment should be supplemented by laboratory investigations including CSF Gram stain and cultures, blood culture, PCR on CSF, serological tests, and imaging. Commonly associated life threatening complications include coma, seizure, raised intracranial pressure (ICP), focal deficits, shock, respiratory failure, and fluid and electrolyte abnormalities...
January 15, 2018: Indian Journal of Pediatrics
https://www.readbyqxmd.com/read/29333468/extraosseous-accumulation-of-technetium-99m-methyl-diphosphonate-99mtc-mdp-in-a-child-with-all-a-case-report
#3
Farnaz Banezhad, Narjess Ayati, Farrokh Seilanian Toosi, Samine Boloursaz, S Rasoul Zakavi
Extraosseous accumulation of technetium-99m-methyl diphosphonate (99mTc-MDP) on bone scan is not common. This phenomenon is often attributed to abnormality of calcium metabolism and has been reported in a variety of conditions including metabolic diseases and malignancies. A five years old boy is presented here, who was admitted to the pediatric emergency suffering from fatigue, respiratory symptoms, weight loss, intermittent fevers, anorexia, nausea and vomiting, edema of legs and abdominal distension for one month...
2018: Asia Oceania Journal of Nuclear Medicine & Biology
https://www.readbyqxmd.com/read/29332607/the-role-of-t2-weighted-gradient-echo-in-the-diagnosis-of-tumefactive-intrahepatic-extramedullary-hematopoiesis-in-myelodysplastic-syndrome-and-diffuse-hepatic-iron-overload-a-case-report-and-review-of-the-literature
#4
Abel A Belay, Andrew M Bellizzi, Alan H Stolpen
BACKGROUND: Extramedullary hematopoiesis is the proliferation of hematopoietic cells outside bone marrow secondary to marrow hematopoiesis failure. Extramedullary hematopoiesis rarely presents as a mass-forming hepatic lesion; in this case, imaging-based differentiation from primary and metastatic hepatic neoplasms is difficult, often leading to biopsy for definitive diagnosis. We report a case of tumefactive hepatic extramedullary hematopoiesis in the setting of myelodysplastic syndrome with concurrent hepatic iron overload, and the role of T2*-weighted gradient-echo magnetic resonance imaging in differentiating extramedullary hematopoiesis from primary and metastatic hepatic lesions...
January 15, 2018: Journal of Medical Case Reports
https://www.readbyqxmd.com/read/29328393/paediatric-virology-and-its-interaction-between-basic-science-and-clinical-practice-review
#5
Ioannis N Mammas, Anne Greenough, Maria Theodoridou, Anna Kramvis, Maria Rusan, Angeliki Melidou, Paraskevi Korovessi, Georgia Papaioannou, Alexia Papatheodoropoulou, Chryssie Koutsaftiki, Maria Liston, George Sourvinos, Demetrios A Spandidos
The 3rd Workshop on Paediatric Virology, which took place on October 7th, 2017 in Athens, Greece, highlighted the role of breast feeding in the prevention of viral infections during the first years of life. Moreover, it focused on the long-term outcomes of respiratory syncytial virus and rhinovirus infections in prematurely born infants and emphasised the necessity for the development of relevant preventative strategies. Other topics that were covered included the vaccination policy in relation to the migration crisis, mother‑to‑child transmission of hepatitis B and C viruses, vaccination against human papilloma viruses in boys and advances on intranasal live‑attenuated vaccination against influenza...
January 4, 2018: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/29328048/a-biomechanical-modeling-guided-simultaneous-motion-estimation-and-image-reconstruction-technique-smeir-bio-for-4d-cbct-reconstruction
#6
Xiaokun Huang, You Zhang, Jing Wang
Reconstructing four-dimensional cone-beam computed tomography (4D-CBCT) images directly from respiratory phase-sorted traditional 3D-CBCT projections can capture target motion trajectory, reduce motion artifacts, and reduce imaging dose and time. However, the limited numbers of projections in each phase after phase-sorting decreases CBCT image quality under traditional reconstruction techniques. To address this problem, we developed a simultaneous motion estimation and image reconstruction (SMEIR) algorithm, an iterative method that can reconstruct higher quality 4D-CBCT images from limited projections using an inter-phase intensity-driven motion model...
January 12, 2018: Physics in Medicine and Biology
https://www.readbyqxmd.com/read/29327076/arms-down-cone-beam-ct-hepatic-angiography-performance-assessment-vascular-imaging-quality-and-imaging-artifacts
#7
Adrian J Gonzalez-Aguirre, Elena N Petre, Meier Hsu, Chaya S Moskowitz, Stephen B Solomon, Jeremy C Durack
INTRODUCTION: The practice of positioning patients' arms above the head during catheter-injected hepatic arterial phase cone beam CT (A-CBCT) imaging has been inherited from standard CT imaging due to image quality concerns, but interrupts workflow and extends procedure time. We sought to assess A-CBCT image quality and artifacts with arms extended above the head versus down by the side. METHODS: We performed an IRB approved retrospective evaluation of reformatted and 3D-volume rendered images from 91 consecutive A-CBCTs (43 arms up, 48 arms down) acquired during hepatic tumor arterial embolization procedures...
January 11, 2018: Cardiovascular and Interventional Radiology
https://www.readbyqxmd.com/read/29325580/the-predictive-prognostic-factors-for-polymyositis-dermatomyositis-associated-interstitial-lung-disease
#8
Yumiko Sugiyama, Ryusuke Yoshimi, Maasa Tamura, Mitsuhiro Takeno, Yosuke Kunishita, Daiga Kishimoto, Yuji Yoshioka, Kouji Kobayashi, Kaoru Takase-Minegishi, Toshiyuki Watanabe, Naoki Hamada, Hideto Nagai, Naomi Tsuchida, Yutaro Soejima, Hiroto Nakano, Reikou Kamiyama, Takeaki Uehara, Yohei Kirino, Akiko Sekiguchi, Atsushi Ihata, Shigeru Ohno, Shouhei Nagaoka, Hideaki Nakajima
BACKGROUND: Interstitial lung disease (ILD) is the principal cause of death in polymyositis/dermatomyositis (PM/DM). Here we investigated prognostic factors for death and serious infection in PM/DM-ILD using the multicenter database. METHODS: We retrospectively reviewed baseline demographic, clinical and laboratory findings, treatment regimens and outcomes in patients with PM/DM-ILD. The distribution of ILD lesions was evaluated in four divided lung zones of high-resolution computed tomography images...
January 11, 2018: Arthritis Research & Therapy
https://www.readbyqxmd.com/read/29323665/arterial-tortuosity-syndrome-40-new-families-and-literature-review
#9
Aude Beyens, Juliette Albuisson, Annekatrien Boel, Mazen Al-Essa, Waheed Al-Manea, Damien Bonnet, Ozlem Bostan, Odile Boute, Tiffany Busa, Nathalie Canham, Ergun Cil, Paul J Coucke, Margot A Cousin, Majed Dasouki, Julie De Backer, Anne De Paepe, Sofie De Schepper, Deepthi De Silva, Koenraad Devriendt, Inge De Wandele, David R Deyle, Harry Dietz, Sophie Dupuis-Girod, Eudice Fontenot, Björn Fischer-Zirnsak, Alper Gezdirici, Jamal Ghoumid, Fabienne Giuliano, Neus Baena Diéz, Mohammed Z Haider, Joshua S Hardin, Xavier Jeunemaitre, Eric W Klee, Uwe Kornak, Manuel F Landecho, Anne Legrand, Bart Loeys, Stanislas Lyonnet, Helen Michael, Pamela Moceri, Shehla Mohammed, Laura Muiño-Mosquera, Sheela Nampoothiri, Karin Pichler, Katrina Prescott, Anna Rajeb, Maria Ramos-Arroyo, Massimiliano Rossi, Mustafa Salih, Mohammed Z Seidahmed, Elise Schaefer, Elisabeth Steichen-Gersdorf, Sehime Temel, Fahrettin Uysal, Marine Vanhomwegen, Lut Van Laer, Lionel Van Maldergem, David Warner, Andy Willaert, Tom R Collins, Andrea Taylor, Elaine C Davis, Yuri Zarate, Bert Callewaert
PurposeWe delineate the clinical spectrum and describe the histology in arterial tortuosity syndrome (ATS), a rare connective tissue disorder characterized by tortuosity of the large and medium-sized arteries, caused by mutations in SLC2A10.MethodsWe retrospectively characterized 40 novel ATS families (50 patients) and reviewed the 52 previously reported patients. We performed histology and electron microscopy (EM) on skin and vascular biopsies and evaluated TGF-β signaling with immunohistochemistry for pSMAD2 and CTGF...
January 11, 2018: Genetics in Medicine: Official Journal of the American College of Medical Genetics
https://www.readbyqxmd.com/read/29323631/endovascular-treatment-with-tirofiban-during-the-acute-stage-of-cervical-spinal-cord-infarction-due-to-vertebral-artery-dissection
#10
Yuanling Wu, Wenxian Li, Xiaomei Xie, Zhen Jing, Weibiao Lu, Li'an Huang
CONTEXT: Cervical spinal cord infarction is a rare and severe complication of vertebral artery dissection (VAD). We report a case of VAD in an acute stage followed by cervical spinal cord infarction that was treated using direct endovascular tirofiban infusion via digital subtraction angiography (DSA) monitoring. FINDINGS: A 48-year-old man presented with vertigo, neck pain, numbness and weakness in four limbs with subsequent cardiac and respiratory arrest. Neurological examination revealed hypoesthesia below the neck with grade one myodynamia on the right side of the limbs and zero on the left side...
January 11, 2018: Journal of Spinal Cord Medicine
https://www.readbyqxmd.com/read/29323413/extracorporeal-membrane-oxygenation-for-refractory-severe-respiratory-failure-in-acute-interstitial-pneumonia
#11
Gabriela Gonçalves-Venade, Nuno Lacerda-Príncipe, Roberto Roncon-Albuquerque, José Artur Paiva
Acute interstitial pneumonia (AIP) is a rare idiopathic interstitial lung disease with rapid progressive respiratory failure and high mortality. In the present report, three cases of AIP complicated by refractory respiratory failure supported with extracorporeal membrane oxygenation (ECMO) are presented. One male and two female patients (ages 27-59) were included. Venovenous ECMO support was provided using miniaturized systems, with two-site femoro-jugular circuit configuration. Despite lung protective ventilation, prone position and neuromuscular blockade, refractory respiratory failure of unknown etiology supervened (ratio of arterial oxygen partial pressure to fractional inspired oxygen 46-130) and ECMO was initiated after 3-7 days of mechanical ventilation...
January 11, 2018: Artificial Organs
https://www.readbyqxmd.com/read/29322217/-functional-diagnostics-in-pneumology
#12
REVIEW
M Held, S Baron, B Jany
Alongside imaging techniques, pulmonary function testing helps in the diagnosis of underlying disorders such as asthma and chronic obstructive pulmonary disease (COPD) or fibrosing lung disease. However, disease severity grading is also important, as well as disease follow-up under therapy. The value of spirometry as a first-line diagnostic test, whole-body plethysmography in advanced diagnostics, the measurement of transfer factor, as well as blood gas analysis are outlined. The importance of spiroergometry, echocardiography, and right-heart catheterization, particularly in the functional assessment of pulmonary vascular disorders, is described...
January 10, 2018: Der Internist
https://www.readbyqxmd.com/read/29320807/overlap-of-interstitial-pneumonia-with-autoimmune-features-with-undifferentiated-connective-tissue-disease-and-contribution-of-uip-to-mortality
#13
Bryan T Kelly, Teng Moua
BACKGROUND AND OBJECTIVE: Criteria for interstitial pneumonia with autoimmune features (IPAF) were recently established for research purposes in a joint statement from the European Respiratory Society (ERS) and American Thoracic Society (ATS). We reviewed the utility of these criteria in patients previously diagnosed as broadly defined undifferentiated connective tissue disease (UCTD) and noted overlapping IPAF findings. Additional review was given to IPAF patients with usual interstitial pneumonia (UIP) on histopathology or radiology in terms of survival and outcome...
January 10, 2018: Respirology: Official Journal of the Asian Pacific Society of Respirology
https://www.readbyqxmd.com/read/29320326/mediastinal-and-pleural-mr-imaging-practical-approach-for-daily-practice
#14
Constantine A Raptis, Sebastian R McWilliams, Kristy L Ratkowski, Jordi Broncano, Daniel B Green, Sanjeev Bhalla
Radiologists in any practice setting should be prepared to use thoracic magnetic resonance (MR) imaging for noncardiac and nonangiographic applications. This begins with understanding the sequence building blocks that can be used to design effective thoracic MR imaging protocols. In most instances, the sequences used in thoracic MR imaging are adapted from protocols used elsewhere in the body. Some modifications, including the addition of electrocardiographic gating or respiratory triggering, may be necessary for certain applications...
January 2018: Radiographics: a Review Publication of the Radiological Society of North America, Inc
https://www.readbyqxmd.com/read/29319254/cavitating-lung-lesions-with-encephalopathy-in-a-patient-with-long-standing-sjogren-s-syndrome-an-elusive-cause
#15
Siddharth Jain, Animesh Ray, Manish Soneja, S Leve Joseph Devarajan, Shyam Madabhushi, Anitha Swamy, T Naveen, S K Sharma
A known case of primary Sjogren's syndrome with chronic kidney disease presented with respiratory symptoms and subsequent altered sensorium. Chest imaging suggested cavitating lung lesions in both the lungs. Serum c-ANCA was positive without any upper respiratory tract involvement or active urinary sediments. Treatment with appropriate anti-microbials produced no improvement in the respiratory or neurological parameters. MRI brain revealed tell-tale signs of CNS vascultis. A diagnosis of GPA was made as per European Medical Agency algorithm and the patient was started on immune-suppressants to which there was dramatic response...
October 2017: Journal of the Association of Physicians of India
https://www.readbyqxmd.com/read/29316973/kartagener-s-syndrome-a-case-report
#16
Abilo Tadesse, Hailemariam Alemu, Mezgebu Silamsaw, Yonathan Gebrewold
BACKGROUND: Kartagener's syndrome is a subset of primary ciliary dyskinesia, an autosomal recessive inherited disorder characterized by the clinical triad of chronic sinusitis, bronchiectasis, and situs inversus. Abnormal ciliary structure or function leading to impaired ciliary motility is the main pathophysiologic problem in Kartagener's syndrome. CASE PRESENTATION: A 24-year-old man from Gondar town, North-West Ethiopia, presented to University of Gondar Hospital with recurrent episodes of nasal congestion with itching and paranasal discomfort, and productive cough for more than a decade...
January 10, 2018: Journal of Medical Case Reports
https://www.readbyqxmd.com/read/29316277/modification-of-oxygen-concentrators-based-on-questionnaire-survey
#17
Masahiro Shinoda, Masaharu Shinkai, Akimichi Nagashima, Kenjiro Nagai, Kei Takagi, Takeshi Kaneko
BACKGROUND: In this study, we conducted a questionnaire survey to clarify and improve problems related to oxygen concentrators. METHODS: Using a questionnaire survey of 30 patients receiving long-term oxygen therapy for chronic respiratory failure, we investigated the necessity of using a remote controller, portability, fire prevention system, built-in battery type and so on. Patients were divided into two groups according to age, sex, underlying conditions, and amount of oxygen prescribed, then analyzed accordingly...
January 8, 2018: Clinical Respiratory Journal
https://www.readbyqxmd.com/read/29315896/respiratory-impedance-is-correlated-with-airway-narrowing-in-asthma-using-three-dimensional-computed-tomography
#18
Masato Karayama, Naoki Inui, Kazutaka Mori, Masato Kono, Hironao Hozumi, Yuzo Suzuki, Kazuki Furuhashi, Dai Hashimoto, Noriyuki Enomoto, Tomoyuki Fujisawa, Yutaro Nakamura, Hiroshi Watanabe, Takafumi Suda
BACKGROUND: Respiratory impedance comprises the resistance and reactance of the respiratory system, and can provide detailed information on respiratory function. However, details of the relationship between impedance and morphological airway changes in asthma are unknown. OBJECTIVE: We aimed to evaluate the correlation between imaging-based airway changes and respiratory impedance in patients with asthma. METHODS: Respiratory impedance and spirometric data were evaluated in 72 patients with asthma and 29 reference subjects...
January 6, 2018: Clinical and Experimental Allergy: Journal of the British Society for Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/29315083/capture-consistently-acquired-projections-for-tuned-and-robust-estimation-a-self-navigated-respiratory-motion-correction-approach
#19
Cihat Eldeniz, Tyler Fraum, Amber Salter, Yasheng Chen, H Michael Gach, Parag J Parikh, Kathryn J Fowler, Hongyu An
OBJECTIVES: In this study, we present a fully automated and robust self-navigated approach to obtain 4-dimensional (4-D) motion-resolved images during free breathing. MATERIALS AND METHODS: The proposed method, Consistently Acquired Projections for Tuned and Robust Estimation (CAPTURE), is a variant of the stack-of-stars gradient-echo sequence. A 1-D navigator was consistently acquired at a fixed azimuthal angle for all stacks of spokes to reduce nonphysiological signal contamination due to system imperfections...
January 8, 2018: Investigative Radiology
https://www.readbyqxmd.com/read/29312585/increased-risk-of-brain-cancer-incidence-in-stroke-patients-a-clinical-case-series-population-based-and-longitudinal-follow-up-study
#20
Chih-Wei Chen, Tain-Junn Cheng, Chung-Han Ho, Jhi-Joung Wang, Shih-Feng Weng, Ya-Chin Hou, Hung-Chi Cheng, Chung-Ching Chio, Yan-Shen Shan, Wen-Tsan Chang
Stroke and brain cancer are two distinct diseases. However, the relationship between both diseases has rarely been examined. This study investigated the longitudinal risk for developing brain cancer in stroke patients. To study this, we first reviewed the malignant gliomas previously with or without stroke using brain magnetic resonance imaging (MRI) images and the past histories. Two ischemic stroke patients before the malignant glioma were identified and belonged to the glioblastoma mutiforme (GBM). Particularly, both GBM specimens displayed strong hypoxia-inducible factor 1α (HIF-1α) expression in immunohistochemical (IHC) staining...
December 12, 2017: Oncotarget
keyword
keyword
9051
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"