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https://www.readbyqxmd.com/read/27922864/99mtc-mdp-uptake-in-diffuse-pleural-recurrences-of-pulmonary-neuroendocrine-carcinoma
#1
Taisong Wang, Wenli Qiao, Yan Xing, Jinhua Zhao
A 39-year-old woman with a history of pulmonary neuroendocrine carcinoma segmental palliative resection underwent a Tc-MDP bone scintigraphy to evaluate possible osseous metastases. The static images revealed diffuse elevated activity in the left hemithorax, more prominent in the lower thorax, which is suggestive of malignant pleural effusion. However, SPECT/CT images showed that the elevated activity was from pleura-based soft tissue masses, which were confirmed as recurrent tumor pathologically after biopsy...
December 3, 2016: Clinical Nuclear Medicine
https://www.readbyqxmd.com/read/27922831/comprehensive-monte-carlo-study-of-patient-doses-from-cone-beam-ct-imaging-in-radiotherapy
#2
T E Marchant, K D Joshi
Accurate knowledge of ionizing radiation dose from cone-beam CT (CBCT) imaging in radiotherapy is important to allow concomitant risks to be estimated and for justification of imaging exposures. This study uses a Monte Carlo CBCT model to calculate imaging dose for a wide range of imaging protocols for male and female patients. The Elekta XVI CBCT system was modeled using GATE and simulated doses were validated against measurements in a water tank and thorax phantom. Imaging dose was simulated in the male and female ICRP voxel phantoms for a variety of anatomical sites and imager settings (different collimators, filters, full and partial rotation)...
December 6, 2016: Journal of Radiological Protection: Official Journal of the Society for Radiological Protection
https://www.readbyqxmd.com/read/27922241/an-unusual-case-of-neuroblastoma-a-17-year-old-adolescent-presented-with-bilateral-diffuse-lung-metastasis-at-initial-diagnosis
#3
Çağlar Ödek, Tanıl Kendirli, Esra Pekpak, Ayhan Yaman, Başak Adaklı-Aksoy, Handan Dinçaslan, Nurdan Taçyıldız, Emel Ünal, Erdal İnce, Gülsan Yavuz
Neuroblastoma (NB) is the most frequently diagnosed neoplasm during infancy and its incidence declines within the first 3-5 years of life. It can be rarely diagnosed in adolescents and young adults. Adolescents have advanced stage of disease, higher frequency of uncommon metastatic sites such as lungs, and worse outcomes. Herein, we describe an unusual case of NB in a 17-year-old adolescent presented with lung metastasis at diagnosis. The patient was diagnosed with stage IV NB. Thorax high-resolution computed tomography (HRCT) scan revealed irregular septal thickening with ground glass opacity consistent with pulmonary parenchymal metastases...
2016: Turkish Journal of Pediatrics
https://www.readbyqxmd.com/read/27921449/reduction-mammaplasty-with-the-modified-round-block-technique-in-chinese-patients-and-its-anatomy-study
#4
Wei Ding, Yinjia Ding, Hua Jiang
BACKGROUND: Although reduction mammaplasty is one of the most common procedures in plastic surgery, it is associated with some serious complications, especially in cases of severe hypertrophy or advanced ptosis, including necrosis of the nipple and areola, absence of normal sensation of the nipple-areolar complex, and loss of lactational function for future nursing. A thorough understanding of the breast anatomy is vital for successful reduction mammaplasty. This article describes the blood supply and innervation of the breasts, and introduces a modified round block technique for reduction mammaplasty based on this anatomy...
December 6, 2016: Journal of Plastic Surgery and Hand Surgery
https://www.readbyqxmd.com/read/27920092/definition-discrimination-diagnosis-and-treatment-of-central-breathing-disturbances-during-sleep
#5
Winfried Randerath, Johan Verbraecken, Stefan Andreas, Michael Arzt, Konrad E Bloch, Thomas Brack, Bertien Buyse, Wilfried De Backer, Danny Joel Eckert, Ludger Grote, Lars Hagmeyer, Jan Hedner, Poul Jennum, Maria Teresa La Rovere, Carla Miltz, Walter T McNicholas, Josep Montserrat, Matthew Naughton, Jean-Louis Pepin, Dirk Pevernagie, Bernd Sanner, Dries Testelmans, Thomy Tonia, Bart Vrijsen, Peter Wijkstra, Patrick Levy
The complexity of central breathing disturbances during sleep has become increasingly obvious. They present as central sleep apnoeas (CSAs) and hypopnoeas, periodic breathing with apnoeas, or irregular breathing in patients with cardiovascular, other internal or neurological disorders, and can emerge under positive airway pressure treatment or opioid use, or at high altitude. As yet, there is insufficient knowledge on the clinical features, pathophysiological background and consecutive algorithms for stepped-care treatment...
December 5, 2016: European Respiratory Journal: Official Journal of the European Society for Clinical Respiratory Physiology
https://www.readbyqxmd.com/read/27919724/reference-levels-for-central-venous-pressure-and-pulmonary-artery-occlusion-pressure-monitoring-in-the-lateral-position
#6
In-Kyung Song, Soohan Ro, Ji-Hyun Lee, Eun-Hee Kim, Hee-Soo Kim, Jae-Hyon Bahk, Jin-Tae Kim
OBJECTIVE: To investigate reference levels for central venous pressure or pulmonary artery occlusion pressure monitoring in a lateral position. DESIGN: Retrospective observational study. SETTING: A tertiary university hospital. PARTICIPANTS: A total of 204 adults who underwent chest computed tomography scan in the 90° lateral position from November 2006 to February 2015. INTERVENTIONS: None. MEASUREMENTS AND MAIN RESULTS: Distances from the mid-sternum to the uppermost and lowermost blood levels of both atria were measured...
September 13, 2016: Journal of Cardiothoracic and Vascular Anesthesia
https://www.readbyqxmd.com/read/27917558/multivariate-sexual-selection-on-male-tegmina-in-wild-populations-of-sagebrush-crickets-cyphoderris-strepitans-orthoptera-haglidae
#7
G D Ower, J Hunt, S K Sakaluk
Although the strength and form of sexual selection on song in male crickets have been studied extensively, few studies have examined selection on the morphological structures that underlie variation in males' song, particularly in wild populations. Geometric morphometric techniques were used to measure sexual selection on the shape, size and symmetry of both top and bottom tegmina in wild populations of sagebrush crickets, a species in which nuptial feeding by females imposes an unambiguous phenotypic marker on males...
November 7, 2016: Journal of Evolutionary Biology
https://www.readbyqxmd.com/read/27915223/children-require-less-gait-kinematic-adaptations-to-pull-a-trolley-than-to-carry-a-backpack
#8
Eva Orantes-Gonzalez, Jose Heredia-Jimenez, George J Beneck
To transport school materials, trolleys have been proposed for children as an alternative to carrying a backpack. However, there is limited evidence comparing the adaptations associated with carrying school trolley versus backpack. This study compared the effects of carrying a backpack and pulling a trolley on gait kinematics in children. Fifty-three students were evaluated. Children walked at self-selected speeds across a walkway with no bag (control), carrying a backpack with the 15% of child́s body weight (%BW) and pulling a trolley with the same load...
November 28, 2016: Gait & Posture
https://www.readbyqxmd.com/read/27914781/incident-air-kerma-to-absorbed-organ-dose-conversion-factors-for-breast-and-lung-in-pa-thorax-radiography-the-effect-of-patient-thickness-and-radiation-quality
#9
A Kelaranta, P Toroi, P Vock
PURPOSE: Converting the measurable quantities to patient organ doses in projection radiography is usually based on a standard-sized patient model and a specific radiation quality, which are likely to differ from the real situation. Large inaccuracies can therefore be obtained in organ doses, because organ doses are dependent on the exposure parameters, exposure geometry and patient anatomy. In this study, the effect of radiation quality and patient thickness on the organ dose conversion factors were determined...
November 30, 2016: Physica Medica: PM
https://www.readbyqxmd.com/read/27914588/obesity-in-pediatric-trauma
#10
Cordelie E Witt, Saman Arbabi, Avery B Nathens, Monica S Vavilala, Frederick P Rivara
BACKGROUND/PURPOSE: The implications of childhood obesity on pediatric trauma outcomes are not clearly established. Anthropomorphic data were recently added to the National Trauma Data Bank (NTDB) Research Datasets, enabling a large, multicenter evaluation of the effect of obesity on pediatric trauma patients. METHODS: Children ages 2 to 19years who required hospitalization for traumatic injury were identified in the 2013-2014 NTDB Research Datasets. Age and gender-specific body mass indices (BMI) were calculated...
November 23, 2016: Journal of Pediatric Surgery
https://www.readbyqxmd.com/read/27908174/respiratory-motion-compensation-for-simultaneous-pet-mr-based-on-highly-undersampled-mr-data
#11
Christopher M Rank, Thorsten Heußer, Andreas Wetscherek, Martin T Freitag, Oliver Sedlaczek, Heinz-Peter Schlemmer, Marc Kachelrieß
PURPOSE: Positron emission tomography (PET) of the thorax region is impaired by respiratory patient motion. To account for motion, the authors propose a new method for PET/magnetic resonance (MR) respiratory motion compensation (MoCo), which uses highly undersampled MR data with acquisition times as short as 1 min/bed. METHODS: The proposed PET/MR MoCo method (4D jMoCo PET) uses radial MR data to estimate the respiratory patient motion employing MR joint motion estimation and image reconstruction with temporal median filtering...
December 2016: Medical Physics
https://www.readbyqxmd.com/read/27904829/systemic-kikuchi-fujimoto-disease-bordering-lupus-lymphadenitis-a-fresh-look
#12
Aram Behdadnia, Seyyed Farshad Allameh, Mehrnaz Asadi Gharabaghi, Seyed Reza Najafizadeh, Ahmad Tahamoli Roudsari, Alireza Ghajar, Morsaleh Ganji, Mohsen Afarideh
A 31-year old woman with persistent fever for 6 weeks and unresponsive to antibiotic therapy came for rheumatologic investigation. After computed tomography (CT) studies of her neck, thorax and abdomen revealed bilateral cervical, axillary and retroperitoneal lymph node enlargements, histopathologic evaluation of the resected nodes showed features of histiocytic necrotizing lymphadenopathy suggestive of Kikuchi-Fujimoto's lymphadenopathy. Kikuchi-Fujimoto Disease (KFD) involving the retroperitoneal nodes is extremely unusual and even more challenging to diagnose when there are no early signs of extranodal involvement or abdominopelvic pain...
November 2016: Intractable & Rare Diseases Research
https://www.readbyqxmd.com/read/27896468/evaluation-of-major-trauma-in-elderly-patients-a%C3%A2-single-trauma-center-analysis
#13
Samo Kocuvan, Drago Brilej, Domen Stropnik, Rolf Lefering, Radko Komadina
BACKGROUND: The objective of the study was to gather information about elderly major trauma patients admitted to one particular Slovenian trauma centre in Celje and examine this group of polytrauma patients, specifically with respect to mechanisms of injury, injury severity and distribution of injuries. Further on, to identify morbidity and mortality rates and compare these to the younger population and, finally, to determine the factors that have the most impact on treatment results...
November 28, 2016: Wiener Klinische Wochenschrift
https://www.readbyqxmd.com/read/27895906/respiratory-distress-associated-with-heterotopic-gastrointestinal-cysts-of-the-oral-cavity-a-case-report
#14
Marco Antonio Méndez Sáenz, Mario de Jesús Villegas González, Marco A Ponce Camacho, Lucia M Cavazos Cavazos, Bárbara Sáenz Ibarra, Blanca I Esquivel García, José Luis Treviño González
Heterotopic gastrointestinal cysts of the oral cavity are benign lesions usually discovered during infancy. Their pathogenesis is not very clear. They are rare congenital anomalies that result from remnants of foregut-derived epithelium in the head, neck, thorax or abdomen during embryonic development. The majority of these lesions occur in the anterior ventral surface of the tongue and extend to the floor of the mouth. They are confused clinically by surgeons in cases of head and neck masses in children as ranulas, dermoid and thyroglossal cysts, and lymphangioma...
December 2016: Annals of Medicine and Surgery
https://www.readbyqxmd.com/read/27895879/evaluation-of-stress-scores-throughout-radiological-biopsies
#15
Ozlem Turkoglu, Hasan Huseyin Mutlu
BACKGROUND: Ultrasound-guided biopsy procedures are the most prominent methods that increase the trauma, stress and anxiety experienced by the patients. OBJECTIVES: Our goal was to examine the level of stress in patients waiting for radiologic biopsy procedures and determine the stress and anxiety level arising from waiting for a biopsy procedure. PATIENTS AND METHODS: This prospective study included 35 female and 65 male patients who were admitted to the interventional radiology department of Kartal Dr...
October 2016: Iranian Journal of Radiology: a Quarterly Journal Published By the Iranian Radiological Society
https://www.readbyqxmd.com/read/27895491/comparison-of-internal-target-volumes-defined-on-3-dimensional-4-dimensonal-and-cone-beam-ct-images-of-non-small-cell-lung-cancer
#16
Fengxiang Li, Jianbin Li, Zhifang Ma, Yingjie Zhang, Jun Xing, Huanpeng Qi, Dongping Shang
PURPOSE: The purpose of this study was to compare the positional and volumetric differences of internal target volumes defined on three-dimensional computed tomography (3DCT), four-dimensional CT (4DCT), and cone-beam CT (CBCT) images of non-small-cell lung cancer (NSCLC). MATERIALS AND METHODS: Thirty-one patients with NSCLC sequentially underwent 3DCT and 4DCT simulation scans of the thorax during free breathing. The first CBCT was performed and registered to the planning CT using the bony anatomy registration during radiotherapy...
2016: OncoTargets and Therapy
https://www.readbyqxmd.com/read/27894354/do-mosquitoes-transmit-the-avian-malaria-like-parasite-haemoproteus-an-experimental-test-of-vector-competence-using-mosquito-saliva
#17
Rafael Gutiérrez-López, Josué Martínez-de la Puente, Laura Gangoso, Jiayue Yan, Ramón C Soriguer, Jordi Figuerola
BACKGROUND: The life-cycle of many vector-borne pathogens includes an asexual replication phase in the vertebrate host and sexual reproduction in the insect vector. However, as only a small array of parasites can successfully develop infective phases inside an insect, few insect species are competent vectors for these pathogens. Molecular approaches have identified the potential insect vectors of blood parasites under natural conditions. However, the effectiveness of this methodology for verifying mosquito competence in the transmission of avian malaria parasites and related haemosporidians is still under debate...
November 28, 2016: Parasites & Vectors
https://www.readbyqxmd.com/read/27891001/rigid-bronchoscopic-management-of-acute-respiratory-failure-in-a-30-year-old-woman
#18
Karan Madan, Ashesh Dhungana, Neha Kawatra Madan, Anant Mohan, Vijay Hadda, Rakesh Garg, Deepali Jain, Randeep Guleria
A 30-year-old woman presented with a history of progressive shortness of breath, cough, and hoarseness. Stridor was audible on examination. Chest X-ray showed normal lung fields and contrast-enhanced computed tomography thorax showed lower tracheal occlusion with endoluminal growth. Diagnostic flexible bronchoscopy demonstrated multiple whitish glistening nodules over both vocal cords and lower tracheal occlusion by whitish nodular growth. In view of critical central airway obstruction, rigid bronchoscopy and excision of the lower tracheal growth were performed...
November 2016: Lung India: Official Organ of Indian Chest Society
https://www.readbyqxmd.com/read/27889373/-infant-respiratory-distress-revealing-jeune-syndrome
#19
J Page, E Bodart, J-L Hennecker
Jeune syndrome (asphyxiating thoracic dystrophy) is a rare autosomal recessive osteochondrodysplasia with a variable degree of severity, clinically characterized by respiratory distress with a narrow chest and limb shortness. The reported incidence is one to five in 500,000 live births. Most patients develop severe respiratory failure during the first 2 years of life, leading to death in 60-80 % of cases. Survivors may suffer from renal, hepatic, or pancreatic complications. Expanding thoracic surgery can be used for severe cases...
November 23, 2016: Archives de Pédiatrie: Organe Officiel de la Sociéte Française de Pédiatrie
https://www.readbyqxmd.com/read/27888930/thermoregulation-in-premature-infants-a-mathematical-model
#20
Carina Barbosa Pereira, Konrad Heimann, Michael Czaplik, Vladimir Blazek, Boudewijn Venema, Steffen Leonhardt
PURPOSE: In 2010, approximately 14.9 million babies (11.1%) were born preterm. Because preterm infants suffer from an immature thermoregulatory system they have difficulty maintaining their core body temperature at a constant level. Therefore, it is essential to maintain their temperature at, ideally, around 37°C. For this, mathematical models can provide detailed insight into heat transfer processes and body-environment interactions for clinical applications. METHODS: A new multi-node mathematical model of the thermoregulatory system of newborn infants is presented...
December 2016: Journal of Thermal Biology
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