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Cervical volume

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https://www.readbyqxmd.com/read/28534730/big-stimulus-little-ears-safety-in-administering-vestibular-evoked-myogenic-potentials-in-children
#1
Megan L A Thomas, Denis Fitzpatrick, Ryan McCreery, Kristen L Janky
BACKGROUND: Cervical and ocular vestibular-evoked myogenic potentials (VEMPs) have become common clinical vestibular assessments. However, VEMP testing requires high intensity stimuli, raising concerns regarding safety with children, where sound pressure levels may be higher due to their smaller ear canal volumes. PURPOSE: The purpose of this study was to estimate the range of peak-to-peak equivalent sound pressure levels (peSPLs) in child and adult ears in response to high intensity stimuli (i...
May 2017: Journal of the American Academy of Audiology
https://www.readbyqxmd.com/read/28533804/the-use-of-trans-applicator-intracavitary-ultrasonography-in-brachytherapy-for-cervical-cancer-phantom-study-of-a-novel-approach-to-3d-image-guided-brachytherapy
#2
Tomoaki Tamaki, Kazunori Miyaura, Toshihiro Murakami, Yu Kumazaki, Yoshiyuki Suzuki, Takashi Nakano, Shingo Kato
PURPOSE: To assess the feasibility of applying trans-applicator intracavitary ultrasonography to image-guided brachytherapy for cervical cancer. MATERIAL AND METHODS: For this experiment, a phantom was created and included a polyethylene tube, intended to simulate a tandem applicator, which was inserted into chicken meat and embedded in agar, along with magnetic resonance imaging (MRI)-compatible ovoid applicators. Three-dimensional images of the phantom were obtained using computed tomography (CT), MRI (T2-weighted), and intracavitary ultrasonography sectional images acquired at 1 mm slice intervals...
April 2017: Journal of Contemporary Brachytherapy
https://www.readbyqxmd.com/read/28533798/optimal-bladder-filling-during-high-dose-rate-intracavitary-brachytherapy-for-cervical-cancer-a-dosimetric-study
#3
Umesh Mahantshetty, Saurabha Shetty, Dipanjan Majumder, Pranjal Adurkar, Jamema Swamidas, Reena Engineer, Supriya Chopra, Shyamkishore Shrivastava
PURPOSE: The aim of this study is to compare 3D dose volume histogram (DVH) parameters of bladder and other organs at risk with different bladder filling protocol during high-dose-rate intracavitary brachytherapy (HDR-ICBT) in cervical cancer, and to find optimized bladder volume. MATERIAL AND METHODS: This dosimetric study was completed with 21 patients who underwent HDR-ICBT with computed tomography/magnetic resonance compatible applicator as a routine treatment...
April 2017: Journal of Contemporary Brachytherapy
https://www.readbyqxmd.com/read/28532909/volume-outcome-relationship-after-1-and-2-level-anterior-cervical-discectomy-and-fusion
#4
Rafael De la Garza Ramos, Jonathan Nakhla, Rani Nasser, Ajit Jada, Niketh Bhashyam, Merritt D Kinon, Reza Yassari
OBJECTIVE: To investigate the impact of surgeon volume on inpatient morbidity after 1- and 2-level anterior cervical discectomy and fusion (ACDF). METHODS: Data from the Nationwide Inpatient Sample from 2009 were extracted. All adult patients who underwent an elective 1- or 2-level ACDF for degenerative cervical spine disease were identified. Surgeon volume was analyzed as a continuous and categorical variable (very-low (<12 procedures per year), low (12 - 23), medium (24 - 35), high (36 - 47), and very-high volume (48 or more))...
May 19, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28532608/assessment-of-the-novel-online-delineation-workshop-dummy-run-approach-using-falcon-within-a-european-multicentre-trial-in-cervical-cancer-raids
#5
Eleonor Rivin Del Campo, Sofia Rivera, María Martínez-Paredes, Philippe Hupé, Andrea Slocker Escarpa, Isabelle Borget, Renaud Mazeron, Suzy Scholl, Amalia Palacios Eito, Christine Haie-Meder, Cyrus Chargari, Eric Deutsch
BACKGROUND AND PURPOSE: Online delineation workshops (ODW) permit training of geographically dispersed participants. The purpose is to evaluate the methodology of an ODW using FALCON to harmonize delineation within a European multicentre trial on locally advanced cervical cancer (LACC). MATERIAL AND METHODS: Two ODW included 46 clinicians (14 centres). Clinicians completed baseline (C1), guideline (C2) and final contours (C3) for external beam radiotherapy (EBRT) and brachytherapy (BT) for LACC...
May 19, 2017: Radiotherapy and Oncology: Journal of the European Society for Therapeutic Radiology and Oncology
https://www.readbyqxmd.com/read/28532243/transabdominal-ultrasonography-defined-optimal-and-definitive-bladder-filling-protocol-with-time-trends-during-pelvic-radiation-for-cervical-cancer
#6
Mahantshetty Umesh, Deepak P Kumar, Pranav Chadha, Rajiv Choudary, Seema Kembhavi, Meenakshi Thakur, Engineer Reena, Supriya Chopra, Shyamkishore Shrivastava
PURPOSE: Advanced radiotherapy techniques have emphasized on the importance of accurate target volume localization and delineation. The aim of this study was to determine time taken to achieve moderate bladder volume under physiological conditions, using transabdominal ultrasound. MATERIALS AND METHODS: Patients with cervical cancer undergoing radical radiation with or without concomitant chemotherapy underwent serial ultrasound to estimate bladder filling. With a strict bladder protocol of consuming 1000 mL of water orally over 30 minutes after emptying the bladder, ultrasound was done after 45 minutes from bladder emptying time and repeated at 15-minute interval till 300 (25) mL filling was achieved and repeated every week...
January 1, 2017: Technology in Cancer Research & Treatment
https://www.readbyqxmd.com/read/28528206/feasibility-of-atlas-based-active-bone-marrow-sparing-intensity-modulated-radiation-therapy-for-cervical-cancer
#7
Nan Li, Sonal S Noticewala, Casey W Williamson, Hanjie Shen, Igor Sirak, Rafal Tarnawski, Umesh Mahantshetty, Carl K Hoh, Kevin L Moore, Loren K Mell
BACKGROUND: To test the hypothesis that atlas-based active bone marrow (ABM)-sparing intensity modulated radiation therapy (IMRT) yields similar dosimetric results compared to custom ABM-sparing IMRT for cervical cancer patients. METHODS: We sampled 62 cervical cancer patients with pre-treatment FDG-PET/CT in training (n=32) or test (n=30) sets. ABM was defined as the subvolume of the pelvic bone marrow (PBM) with standardized uptake value (SUV) above the mean on the average FDG-PET image (ABMAtlas) vs...
May 2017: Radiotherapy and Oncology: Journal of the European Society for Therapeutic Radiology and Oncology
https://www.readbyqxmd.com/read/28525647/evaluation-of-the-effects-of-tanezumab-a-monoclonal-antibody-against-nerve-growth-factor-on-the-sympathetic-nervous-system-in-adult-cynomolgus-monkeys-macaca-fascicularis-a-stereologic-histomorphologic-and-cardiofunctional-assessment
#8
Patrice Belanger, Paul Butler, Mark Butt, Siddhartha Bhatt, Stephen Foote, David Shelton, Mark Evans, Rosalinda Arends, Susan Hurst, Carlin Okerberg, Thomas Cummings, David Potter, Jill Steidl-Nichols, Mark Zorbas
Tanezumab, a humanized monoclonal antibody against nerve growth factor is in development for treatment of chronic pain. Three nonclinical studies assessed effects of clinically relevant and supratherapeutic doses of tanezumab on the sympathetic nervous system (SNS) of adult nonhuman primates. Study 1 evaluated potential effects of subcutaneous (SC) tanezumab (1.2 mg/kg every 8 weeks [Q8W]) on SNS in cynomolgus monkeys for 3 or 6 months and reversibility or persistence of any effects through a non-dosing/recovery period...
May 19, 2017: Toxicological Sciences: An Official Journal of the Society of Toxicology
https://www.readbyqxmd.com/read/28525490/surgeon-procedure-volume-and-complication-rates-in-anterior-cervical-discectomy-and-fusions-analysis-of-a-national-longitudinal-database
#9
Tyler Cole, Anand Veeravagu, Michael Zhang, John K Ratliff
STUDY DESIGN: Retrospective study using the MarketScan longitudinal database (2006-2010). OBJECTIVE: Compare complication rates between groups of patients undergoing anterior cervical discectomy and fusion (ACDF) procedures performed by surgeons with high versus low mean annual ACDF volume. SUMMARY OF BACKGROUND DATA: Over the past decade the volume of ACDFs performed has increased, concurrent with greater appreciation of potential for associated complications...
June 2017: Clinical Spine Surgery
https://www.readbyqxmd.com/read/28518181/a-semi-automatic-algorithm-for-preliminary-assessment-of-labial-gingiva-and-alveolar-bone-thickness-of-maxillary-anterior-teeth
#10
Sheng-Hung Chen, Hsun-Liang Chan, Yongning Lu, Sim-Heng Ong, Hom-Lay Wang, Eng Hong Ko, Po-Chun Chang
PURPOSE: Soft and hard tissue volumes are critical for implant placement and long-term stability. Although the literature has adequately addressed tissue biotypes of Western populations, pertinent information about Asian populations is limited. This study aimed to evaluate the soft and hard tissue profiles of the maxillary anterior teeth of the Taiwanese population using a semi-automatic algorithm. MATERIALS AND METHODS: Cone beam computed tomography images of 11 adults with well-aligned maxillary anterior teeth were overlaid with those of cast models, based on the tooth crowns manually outlined by two independent observers...
May 18, 2017: International Journal of Oral & Maxillofacial Implants
https://www.readbyqxmd.com/read/28511455/cervical-conization-and-the-risk-of-preterm-birth-a-population-based-multicentric-trial-of-turkish-cohort
#11
Ali Galip Zebitay, Emre Sinan Güngör, Gülsah Ilhan, Orkun Çetin, Cem Dane, Canan Furtuna, Fatma Ferda Verit Atmaca, Merve Tuna
INTRODUCTION: Cold Knife Conization (CKC) is one of the most effective methods for the treatment of Cervical Intraepithelial Neoplasia (CIN). Some studies showed a relation between preterm birth and the treatment of CIN; on the other hand, other studies do not show such a relationship. AIM: The present study was conducted with the aim to investigate the pregnancy outcomes of Turkish women regarding demographic characteristics, obstetric history, removed tissue, and residual cervical length after CKC and to determine the effect of removed cervical tissue volume and height on preterm birth...
March 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28508846/assessment-of-three-dimensional-setup-errors-in-image-guided-pelvic-radiotherapy-for-uterine-and-cervical-cancer-using-kilovoltage-cone-beam-computed-tomography-and-its-effect-on-planning-target-volume-margins
#12
Nidhi Patni, Nagarjuna Burela, Rajesh Pasricha, Jaishree Goyal, Tej Prakash Soni, T Senthil Kumar, T Natarajan
PURPOSE: To achieve the best possible therapeutic ratio using high-precision techniques (image-guided radiation therapy/volumetric modulated arc therapy [IGRT/VMAT]) of external beam radiation therapy in cases of carcinoma cervix using kilovoltage cone-beam computed tomography (kV-CBCT). MATERIALS AND METHODS: One hundred and five patients of gynecological malignancies who were treated with IGRT (IGRT/VMAT) were included in the study. CBCT was done once a week for intensity-modulated radiation therapy and daily in IGRT/VMAT...
January 2017: Journal of Cancer Research and Therapeutics
https://www.readbyqxmd.com/read/28508679/comparison-of-fdg-pet-metabolic-tumour-volume-versus-adc-histogram-prognostic-value-of-tumour-treatment-response-and-survival-in-patients-with-locally-advanced-uterine-cervical-cancer
#13
Yoshiko Ueno, Robert Lisbona, Tsutomu Tamada, Amer Alaref, Kazuro Sugimura, Caroline Reinhold
OBJECTIVE: To evaluate the prognostic utility of volume-based parameters of fluorine 18 fluorodeoxyglucose positron emission tomography ((18)F-FDG PET) and apparent diffusion coefficient (ADC) histogram analysis for tumour response to therapy and event-free survival (EFS) in patients with uterine cervical cancer receiving chemoradiotherapy (CRT). METHODS: The study included 21 patients diagnosed as locally advanced uterine cervical cancer who underwent pre-treatment MRI and (18)F-FDG PET and were treated with concurrent CRT...
May 16, 2017: British Journal of Radiology
https://www.readbyqxmd.com/read/28508429/the-cross-talk-between-cervical-carcinoma-cells-and-vascular-endothelial-cells-mediated-by-il-27-restrains-angiogenesis
#14
Bing Zhang, Feng Xie, Chun-Lin Dong, Chun-Jie Gu, Jiao Cheng, Yuan Wang, Xi-Zhong Xu, Hong Pu, Yi-Bo Wu, Xiao-Wei Qi, Da-Jin Li, Jin-Jin Yu, Ming-Qing Li
PROBLEM: To explore whether cervical carcinoma cell-derived interleukin-27 (IL-27) modulates the angiogenesis of vascular endothelial cells. METHOD OF STUDY: The expression of IL-27 in cervical cancer tissues and cervical cell lines was analyzed by immunohistochemistry, ELISA and flow cytometry. Then, the effects of IL-27 on the proliferation and apoptosis-related molecules and angiogenesis in vitro of human umbilical vein endothelial cells (HUVECs) were investigated...
May 15, 2017: American Journal of Reproductive Immunology: AJRI
https://www.readbyqxmd.com/read/28508348/cost-analysis-of-minimally-invasive-radical-hysterectomy-for-cervical-cancer-performed-by-a-single-surgeon-in-an-italian-center-an-update-in-gynecologic-oncological-field
#15
Antonio Pellegrino, Gianluca Raffaello Damiani, Giorgio Fachechi, Cecilia Pirovano, Maria Gaetani, Aly Youssef
The objective of this study is to perform an economic analysis and examine the influence of procedural volume of our hospital, evaluating the accounting systems of Robotic radical hysterectomy (RRH) vs Laparoscopic radical hysterectomy (TLRH) in patients with cervical carcinoma, due to the costs widely variable and lack in literature. Costs were collected prospectively, from March 2010 to March 2016. Direct costs were determined by examining the overall medical pathway for each type of intervention. 52 patients with cervical carcinoma, which were matched by age, body mass index, tumor size, International Federation of Gynecology and Obstetrics (FIGO) stage, comorbidity, previous neoadjuvant chemotherapy, histology type, and tumor grade to obtain homogeneous samples...
May 15, 2017: Updates in Surgery
https://www.readbyqxmd.com/read/28498240/simple-vaginal-trachelectomy-a-valuable-fertility-preserving-option-in-early-stage-cervical-cancer
#16
Marie Plante, Marie-Claude Renaud, Alexandra Sebastianelli, Jean Gregoire
OBJECTIVE: Radical trachelectomy is a valid alternative for the treatment of early-stage cervical cancer in young women who wish to preserve fertility potential. Recent data indicate that even less radical surgery could be performed in low-risk cases. The objective of our study was to evaluate the safety of simple vaginal trachelectomy and node assessment in patients with low-risk, early-stage cervical cancer (<2 cm). METHODS: From May 2007 to July 2016, 35 women underwent a simple vaginal trachelectomy with laparoscopic sentinel lymph node mapping + pelvic node dissection...
June 2017: International Journal of Gynecological Cancer
https://www.readbyqxmd.com/read/28495443/dose-volume-correlation-of-cumulative-vaginal-doses-and-late-toxicity-after-adjuvant-external-radiation-and-brachytherapy-for-cervical-cancer
#17
Roshni Singh, Supriya Chopra, Reena Engineer, Siji Paul, Sadhana Kannan, Sarthak Mohanty, Jamema Swamidas, Umesh Mahantshetty, Jaya Ghosh, Amita Maheshwari, T Surappa Shylasree, Rajendra Kerkar, Sudeep Gupta, Shyam Shrivastava
PURPOSE: To investigate dose-response relationship between vaginal doses and long-term morbidity. METHODS AND MATERIALS: Patients receiving adjuvant pelvic (chemo) radiation and brachytherapy for cervical cancer from January 2011 to December 2014 were included. Baseline vaginal length was determined clinically and from imaging at BT planning. Dose points were defined along mucosa and at 5 mm depth at 12, 3, 6, and 9 'o' clock positions at every 2 cm from apex to introitus...
May 8, 2017: Brachytherapy
https://www.readbyqxmd.com/read/28495001/a-comparison-between-swallowing-sounds-and-vibrations-in-patients-with-dysphagia
#18
Faezeh Movahedi, Atsuko Kurosu, James L Coyle, Subashan Perera, Ervin Sejdić
The cervical auscultation refers to the observation and analysis of sounds or vibrations captured during swallowing using either a stethoscope or acoustic/vibratory detectors. Microphones and accelerometers have recently become two common sensors used in modern cervical auscultation methods. There are open questions about whether swallowing signals recorded by these two sensors provide unique or complementary information about swallowing function; or whether they present interchangeable information. This study aims to compare of swallowing signals recorded by a microphone and a tri-axial accelerometer from 72 patients (mean age 63...
June 2017: Computer Methods and Programs in Biomedicine
https://www.readbyqxmd.com/read/28494130/visualization-of-stereoscopic-anatomic-models-of-the-paranasal-sinuses-and-cervical-vertebrae-from-the-surgical-and-procedural-perspective
#19
Jian Chen, Andrew D Smith, Majid A Khan, Allan R Sinning, Marianne L Conway, Dongmei Cui
Recent improvements in three-dimensional (3D) virtual modeling software allows anatomists to generate high-resolution, visually appealing, colored, anatomical 3D models from computed tomography (CT) images. In this study, high-resolution CT images of a cadaver were used to develop clinically relevant anatomic models including facial skull, nasal cavity, septum, turbinates, paranasal sinuses, optic nerve, pituitary gland, carotid artery, cervical vertebrae, atlanto-axial joint, cervical spinal cord, cervical nerve root, and vertebral artery that can be used to teach clinical trainees (students, residents, and fellows) approaches for trans-sphenoidal pituitary surgery and cervical spine injection procedure...
May 11, 2017: Anatomical Sciences Education
https://www.readbyqxmd.com/read/28489930/prognostic-value-of-cervical-nodal-tumor-volume-in-nasopharyngeal-carcinoma-analysis-of-1230-patients-with-positive-cervical-nodal-metastasis
#20
Fo-Ping Chen, Guan-Qun Zhou, Zhen-Yu Qi, Li Lin, Jiang Hu, Xiao-Ju Wang, Ying Sun
PURPOSE: To investigate the variability and prognostic value of nodal tumor volume (NTV) in nasopharyngeal carcinoma (NPC). METHODS AND MATERIALS: Data on 1230 patients with newly diagnosed stage T1-4N1-3M0 NPC treated with definitive radiation therapy with or without chemotherapy at a single cancer center were reviewed. NTV was determined from dose volume histogram (DVH) data. X-tile analysis was applied to identify the optimal cut-off points for the NTV with respect to regional recurrence-free survival (RRFS)...
2017: PloS One
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