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https://www.readbyqxmd.com/read/29166756/use-of-imaging-techniques-in-large-vessel-vasculitis-and-related-conditions
#1
Annibale Versari, Nicolò Pipitone, Massimiliano Casali, Francois Jamar, Giulia Pazzola
Giant Cell Arteritis (GCA) and Takayasu's arteritis (TA) are large vessel vasculitis (LVV) primarily affecting the aorta and its major branches, mainly differentiated by the onset age (>50 years GCA and <40 years TA). In addition, temporal artery involvement and polymyalgia rheumatic are typical features of GCA, but not TA. Imaging techniques are required to secure the diagnosis of large-vessel vasculitides, and to monitor the disease course. Both morphological and metabolic imaging are involved. Morphological imaging is represented mainly by Computerized Tomography (CT), CT angiography, Magnetic Resonance (MR), MR angiography, Color-Doppler Sonography (CDS) and high-resolution CDS...
November 22, 2017: Quarterly Journal of Nuclear Medicine and Molecular Imaging
https://www.readbyqxmd.com/read/29166754/advances-in-oncological-treatment-limitations-of-recist-1-1-criteria
#2
Serena Grimaldi, Marie Terroir, Caroline Caramella
INTRODUCTION: RECIST 1.1 criteria are the standard for the response assessment of most solid tumors on computed tomography (CT). Nevertheless, the emergence of new classes of treatment in the lasts decades has brought new challenges in the response evaluation. EVIDENCE ACQUISITION: A PubMed online database literature search was performed in order to identify papers in English with full text available published up to September 2017. EVIDENCE SYNTHESIS: Some oncologic treatments, such as anti-angiogenic agents, immunotherapy and local treatments, have proven to be effective despite atypical patterns of responses...
November 22, 2017: Quarterly Journal of Nuclear Medicine and Molecular Imaging
https://www.readbyqxmd.com/read/29166717/-left-atrial-appendage-volume-is-a-valuable-predictor-of-atrial-fibrillation-recurrence-after-radiofrequency-catheter-ablation
#3
G A Zheng, C Y Lin, L Weng, J D Chen
Objective: To investigate the association between the left atrial appendage (LAA) volume and atrial fibrillation (AF) recurrence after radiofrequency catheter ablation. Methods: We prospectively enrolled sixty-two patients with AF (40 cases with paroxysmal AF, 22 cases with persistent AF) who successfully underwent a first AF catheter ablation and had performed contrast-enhanced cardiac computed tomography (CT) prior to the procedure to measure LAA volumes in our hospital from January 2012 to August 2015. Circumferential pulmonary vein isolation was performed under the guidance of three-dimension mapping system (CARTO system)...
November 24, 2017: Zhonghua Xin Xue Guan Bing za Zhi
https://www.readbyqxmd.com/read/29166637/assessing-vessel-tone-during-coronary-artery-spasm-by-dual-acquisition-multidetector-computed-tomography-angiography
#4
Cai De Jin, Moo Hyun Kim, Eun Ju Kang, Young Rak Cho, Tae Ho Park, Ki Nam Lee, Victor Serebruany
BACKGROUND: Diminished vascular tone is an established biomarker of heart damage. Little is known about the extent of coronary vessel tone (CVT) with spasm as assessed by dual-acquisition multidetector computed tomography angiography (MCTA) in patients with vasospastic angina (VSA). OBJECTIVE: We evaluated the CVT modulated by intravenous nitrate injection (INI) using MCTA imaging in VSA patients. METHODS: Twenty-one VSA patients (60 ± 9 years; 76% males) who underwent initial MCTA (without morning vasodilation), followed by an intracoronary ergonovine provocation test were included...
November 23, 2017: Cardiology
https://www.readbyqxmd.com/read/29166539/an-unusual-cause-of-headache-and-sudden-death-of-a-young-sailor-postmortem-computed-tomography-and-histological-findings-of-a-fatal-retroperitoneal-malignant-mixed-germ-cell-tumor
#5
Belinda Lee, Michelle Chan, Ronald Goh
A 26-year-old Caucasian sailor, with no past medical history aside from headache for the last 1 week, was found dead in his cabin. The body was stored in a refrigerator on board and disembarked for autopsy 3 days later. Autopsy showed a large, nodular, necrotic and hemorrhagic retroperitoneal mass, and smaller hemorrhagic nodules in the brain, lungs, liver, and left kidney, with the brain being markedly edematous. Both testes were descended and normal. Histologically, the retroperitoneal mass showed a malignant mixed germ cell tumor comprising choriocarcinoma, embryonal carcinoma, and teratoma components...
November 22, 2017: Journal of Forensic Sciences
https://www.readbyqxmd.com/read/29166493/dystrophic-calcification-of-maxillary-sinus-in-pediatric-patients-with-liver-transplantation-and-pigmentation-of-dental-organ
#6
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/29166334/gastrointestinal-stromal-tumor-of-the-prostate-staging-and-evaluation-of-response-to-therapy-with-18f-fdg-pet-ct
#7
Yazan Z Alabed
A 49-year-old man presented for routine general physical examination was found with an enlarged prostate gland without associated symptoms. Ultrasound followed by computed tomography (CT) of abdomen and pelvis confirmed a markedly enlarged heterogeneous prostate gland. Subsequently, a staging flourine-18 fluorodeoxyglucose (F-FDG) positron emission tomography (PET/CT) scan revealed intensely FDG-avid mass involving the prostate, which was biopsied as gastrointestinal stromal tumor (GIST). The patient was treated with imatinib and a follow-up PET/CT scan showed complete metabolic response...
November 22, 2017: Clinical Nuclear Medicine
https://www.readbyqxmd.com/read/29166203/temporal-profile-of-care-following-mild-traumatic-brain-injury-predictors-of-hospital-admission-follow-up-referral-and-six-month-outcome
#8
John K Yue, Ethan A Winkler, Sourabh Sharma, Mary J Vassar, Jonathan J Ratcliff, Frederick K Korley, Seth A Seabury, Adam R Ferguson, Hester F Lingsma, Sacha Meeuws, Opeolu M Adeoye, Jonathan W Rick, Caitlin K Robinson, Siena M Duarte, Esther L Yuh, Pratik Mukherjee, Sureyya S Dikmen, Thomas W McAllister, Ramon Diaz-Arrastia, Alex B Valadka, Wayne A Gordon, David O Okonkwo, Geoffrey T Manley
OBJECTIVE: To investigate the clinical management and medical follow-up of patients with mild traumatic brain injury (mTBI) presenting to emergency departments (EDs). METHODS: Overall, 168 adult patients with mTBI from the prospective, multicentre Transforming Research and Clinical Knowledge in TBI (TRACK-TBI) Pilot study with Glasgow Coma Scale (GCS) 13-15, no polytrauma and alive at six months were included. Predictors for hospital admission, three-month follow-up referral and six-month functional disability (Glasgow Outcome Scale-Extended (GOSE) ≤ 6) were analysed using multivariable regression...
2017: Brain Injury: [BI]
https://www.readbyqxmd.com/read/29165896/investigation-of-the-abnormal-nasal-aerodynamics-and-trigeminal-functions-among-empty-nose-syndrome-patients
#9
Chengyu Li, Alexander A Farag, Guillermo Maza, Sam McGhee, Michael A Ciccone, Bhakthi Deshpande, Edmund A Pribitkin, Bradley A Otto, Kai Zhao
BACKGROUND: Abnormal nasal aerodynamics or trigeminal functions have been frequently implicated in the symptomology of empty nose syndrome (ENS), yet with limited evidence. METHODS: Individual computed tomography (CT)-based computational fluid dynamics (CFD) was applied to 27 ENS patients to simulate their nasal aerodynamics and compared with 42 healthy controls. Patients' symptoms were confirmed with Empty Nose Syndrome 6-item Questionnaire (ENS6Q), 22-item Sino-Nasal Outcome Test (SNOT-22), and Nasal Obstruction Symptom Evaluation (NOSE) scores...
November 22, 2017: International Forum of Allergy & Rhinology
https://www.readbyqxmd.com/read/29165746/computed-tomographic-localization-of-the-central-sulcus-a-morphometric-study-in-adult-patients
#10
Dan Zimelewicz Oberman, Jorge Rasmussen, Maximiliano Toscano, Ezequiel Goldschmidt, Pablo Ajler
AIM: Despite advances in intraoperative navigation and electrocorticography, neuroanatomical knowledge is an essential tool for neurosurgical planning. The aim of this study was to accurately describe the relations between the anatomical landmarks of the cranial convexity and the main cortical structures. MATERIAL AND METHODS: A retrospective cross-sectional, observational study was performed. Computed tomography scans of 71 adult patients with no pathological imaging were analyzed...
November 1, 2017: Turkish Neurosurgery
https://www.readbyqxmd.com/read/29165599/direct-axillary-cannulation-with-open-seldinger-guided-technique-is-it-safe
#11
Davide Carino, Makoto Mori, Philip Y K Pang, Mrinal Singh, Sherif Elkinany, Maryann Tranquilli, Bulat A Ziganshin, John A Elefteriades
OBJECTIVES: Axillary artery cannulation is commonly used in thoracic aortic surgery, often utilizing a sidearm graft. Although our institutional preference is femoral cannulation, we use axillary cannulation in select cases with a 'dirty' aorta on computed tomography scan or intraoperative transoesophageal echocardiography. Since 2011, we have routinely used an open Seldinger-guided approach for axillary cannulation. Here, we report our experience with open Seldinger-guided technique, evaluating its safety and efficacy...
November 20, 2017: European Journal of Cardio-thoracic Surgery
https://www.readbyqxmd.com/read/29165498/tomographic-magnetic-particle-imaging-of-cancer-targeted-nanoparticles
#12
Hamed Arami, Eric Teeman, Alyssa Troksa, Haydin Bradshaw, Katayoun Saatchi, Asahi Tomitaka, Sanjiv Sam Gambhir, Urs O Häfeli, Denny Liggitt, Kannan M Krishnan
Magnetic Particle Imaging (MPI) is an emerging, whole body biomedical imaging technique, with sub-millimeter spatial resolution and high sensitivity to a biocompatible contrast agent consisting of an iron oxide nanoparticle core and a biofunctionalized shell. Successful application of MPI for imaging of cancer depends on the nanoparticles (NPs) accumulating at tumors at sufficient levels relative to other sites. NPs' physiochemical properties such as size, crystallographic structure and uniformity, surface coating, stability, blood circulation time and magnetization determine the efficacy of their tumor accumulation and MPI signal generation...
November 22, 2017: Nanoscale
https://www.readbyqxmd.com/read/29165285/hypofractionated-nodal-radiation-therapy-for-breast-cancer-was-not-associated-with-increased-patient-reported-arm-or-brachial-plexopathy-symptoms
#13
Nelson Leong, Pauline T Truong, Keith Tankel, Winkle Kwan, Lorna Weir, Ivo A Olivotto
PURPOSE: To determine whether nodal radiation therapy (RT) for breast cancer using modest hypofractionation (HF) with 2.25 to 2.5 Gy per fraction (fx) was associated with increased patient-reported arm symptoms, compared with conventional fractionation (CF) ≤2 Gy/fx. METHODS AND MATERIALS: Two cancer registries were used to identify subjects who received computed tomography-planned nodal RT for pT1-3, pN0-2, M0 breast cancer, from 2007 to 2010 at 2 cancer institutions...
December 1, 2017: International Journal of Radiation Oncology, Biology, Physics
https://www.readbyqxmd.com/read/29164651/jaw-closing-movement-and-sex-differences-in-temporomandibular-joint-energy-densities
#14
Luigi M Gallo, Nicolas Fankhauser, Yoly M Gonzalez, Hongzeng Liu, Ying Liu, Jeffrey C Nickel, Laura R Iwasaki
Energy densities (ED, mJ/mm(3) ) quantify mechanical work imposed on articular cartilages during function. This cross-sectional study examined differences in temporomandibular joint (TMJ) ED during asymmetric versus symmetric jaw closing in healthy females versus males. ED component variables were tested for differences between and within sexes for two types of jaw closing. Seventeen female and 17 male subjects gave informed consent to participate. Diagnostic Criteria for Temporomandibular Disorders and images (magnetic resonance (MR), computed tomography) were used to confirm healthy TMJ status...
November 21, 2017: Journal of Oral Rehabilitation
https://www.readbyqxmd.com/read/29164583/application-of-dynamic-ct-to-identify-lung-cancer-pulmonary-tuberculosis-and-pulmonary-inflammatory-pseudotumor
#15
X-L Wang, W Shan
OBJECTIVE: To determine the value of dynamic enhanced computed tomography (CT) scanning in diagnosing lung cancer, pulmonary tuberculosis, and pulmonary inflammatory pseudotumor. PATIENTS AND METHODS: We recruited 30 patients with pulmonary tuberculoma, 38 with lung cancer, and 16 with pulmonary inflammatory pseudotumor. All patients received CT scanning, dynamic enhanced CT scanning for 20, 30, 45, 60, 75, 90, and 120 s, and scanning for 3, 5, 8, 12, and 15 min...
November 2017: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/29164558/rapamycin-facilitates-fracture-healing-through-inducing-cell-autophagy-and-suppressing-cell-apoptosis-in-bone-tissues
#16
Z-Y Yin, J Yin, Y-F Huo, J Yu, L-X Sheng, Y-F Dong
OBJECTIVE: To investigate the changes in cell autophagy and the molecular mechanism of rapamycin affecting the fracture healing. MATERIAL AND METHODS: Sprague-Dawley (SD) rats were used to establish the right femoral shaft fracture models, and then underwent immunofluorescence assay to detect the autophagy level in bone tissues. After model establishment, SD rats were divided into two groups, the control group and the rapamycin group (1 mg/kg/d). Respectively, at the 2nd, 4th, and 6th week, rats were randomly selected from each group for X-ray and Micro-computed tomography (Micro-CT) examinations to determine callus growth, immunofluorescence assay to detect the protein expression of light chain 3 II (LC3 II), immunohistochemistry to evaluate the autophagy level through detecting the expression of Beclin1 in rats, Western blotting assay to detect cell apoptosis in tissues, hematoxylin and eosin staining (HE staining) to evaluate the osteoblastic activity through count of osteoblast in bone tissue at the end of fracture, and measure the expression of vascular endothelial growth factors (VEGF)...
November 2017: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/29164520/adrenal-myelolipoma-a-comprehensive-review
#17
REVIEW
Ábel Decmann, Pál Perge, Miklós Tóth, Peter Igaz
INTRODUCTION: Adrenal myelolipoma is an invariably benign neoplasm of the adrenal gland that is the second most common primary adrenal incidentaloma following adrenocortical adenomas. It is composed of elements of adipose tissue and extramedullary hematopoiesis. Hypotheses on stem cells and hormonal factors have been formulated regarding its pathogenesis that is still obscure. Despite its benign behavior, adrenal myelolipoma is clinically relevant as it might cause significant difficulties in the differential diagnosis of adrenal tumors...
November 21, 2017: Endocrine
https://www.readbyqxmd.com/read/29164450/accuracy-of-early-ct-findings-for-predicting-disease-course-in-patients-with-acute-pancreatitis
#18
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/29164429/red-blood-cell-distribution-width-as-a-related-factor-of-pulmonary-arterial-hypertension-in-patients-with-systemic-sclerosis
#19
Jiuliang Zhao, Hongnan Mo, Xiaoxiao Guo, Qian Wang, Dong Xu, Yong Hou, Zhuang Tian, Yongtai Liu, Hui Wang, Jinzhi Lai, Mengtao Li, Xiaofeng Zeng
The aim of this study was to investigate the utility of red blood cell distribution width (RDW) as a simple and readily available marker of occurrence of pulmonary arterial hypertension (PAH) in patients with systemic sclerosis (SSc). One hundred and forty-five consecutive patients with SSc were recruited to the single-center cross-sectional study. Demographic characteristics, hematological parameters, Modified Rodnan Skin Score, and World Health Organization functional classification were determined. Diagnosis of PAH was based on screening by echocardiography and was confirmed by right heart catheterization...
November 21, 2017: Clinical Rheumatology
https://www.readbyqxmd.com/read/29164425/outflow-graft-anastomosis-site-design-could-be-correlated-to-aortic-valve-regurgitation-under-left-ventricular-assist-device-support
#20
Kei Iizuka, Tomohiro Nishinaka, Yuki Ichihara, Takuma Miyamoto, Kenji Yamazaki
Aortic valve regurgitation (AR) is a critical complication during circulatory support with a left ventricular assist device (LVAD). The time-course of AR and related factors, including outflow graft anastomosis site design, were investigated. Twenty-three patients who had continuous-flow LVAD implantation and were supported for more than 6 months were investigated. AR grade (none, 0; trivial, 0.5; mild, 1; mild-moderate, 1.5; moderate, 2; moderate-severe, 2.5; severe, 3) and aortic valve opening were evaluated with echocardiography...
November 21, 2017: Journal of Artificial Organs: the Official Journal of the Japanese Society for Artificial Organs
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