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https://www.readbyqxmd.com/read/29786814/predictive-value-of-preoperative-neutrophil-to-lymphocyte-ratio-while-detecting-bowel-resection-in-hernia-with-intestinal-incarceration
#1
Hande Köksal, Derviş Ateş, Emet Ebru Nazik, İlknur Küçükosmanoğlu, Serap Melek Doğan, Osman Doğru
BACKGROUND: The aim of this study was to evaluate the relationship between preoperative hematological inflammatory markers of the patients who underwent a surgery for incarcerated hernia and intestinal resection requirement. METHODS: The data of 102 patients who underwent a surgery for incarcerated hernia were retrospectively evaluated. Whole blood cell counts were preoperatively measured, and operation types and pathology results were recorded. The patients with intestinal resections were compared with those without any resection in terms of leukocyte number, neutrophil rate, red cell distribution width (RDW), platelet distribution width, neutrophil-to lymphocyte ratio (NLR), platelet to lymphocyte ratio (PLR), and mean platelet volume (MPV)...
May 2018: Ulusal Travma Ve Acil Cerrahi Dergisi, Turkish Journal of Trauma & Emergency Surgery: TJTES
https://www.readbyqxmd.com/read/29786788/transplantable-animal-studies-and-whole-body-optical-imaging-in-prostate-carcinoma
#2
Geertje van der Horst, Maaike van der Mark, Henry Cheung, Gabri van der Pluijm
Current treatments of advanced prostate cancer only marginally increase overall survival and can be regarded as predominantly palliative. Hence, there is an urgent need for novel therapeutic strategies for the treatment of primary tumors and, more importantly perhaps, for the prevention of tumor progression and metastasis formation. Clinically relevant preclinical models are therefore urgently needed. An ideal, clinically relevant preclinical model would mimic the genetic and phenotypic changes that occur at the different stages of human prostate cancer progression and subsequent metastasis...
2018: Methods in Molecular Biology
https://www.readbyqxmd.com/read/29786776/a-framework-for-image-based-modeling-of-acute-myocardial-ischemia-using-intramurally-recorded-extracellular-potentials
#3
Brett M Burton, Kedar K Aras, Wilson W Good, Jess D Tate, Brian Zenger, Rob S MacLeod
The biophysical basis for electrocardiographic evaluation of myocardial ischemia stems from the notion that ischemic tissues develop, with relative uniformity, along the endocardial aspects of the heart. These injured regions of subendocardial tissue give rise to intramural currents that lead to ST segment deflections within electrocardiogram (ECG) recordings. The concept of subendocardial ischemic regions is often used in clinical practice, providing a simple and intuitive description of ischemic injury; however, such a model grossly oversimplifies the presentation of ischemic disease-inadvertently leading to errors in ECG-based diagnoses...
May 21, 2018: Annals of Biomedical Engineering
https://www.readbyqxmd.com/read/29786775/stormram-4-an-mr-safe-robotic-system-for-breast-biopsy
#4
Vincent Groenhuis, Françoise J Siepel, Jeroen Veltman, Jordy K van Zandwijk, Stefano Stramigioli
Suspicious lesions in the breast that are only visible on magnetic resonance imaging (MRI) need to be biopsied under MR guidance with high accuracy and efficiency for accurate diagnosis. The aim of this study is to present a novel robotic system, the Stormram 4, and to perform preclinical tests in an MRI environment. Excluding racks and needle, its dimensions are 72 × 51 × 40 mm. The Stormram 4 is driven by two linear and two curved pneumatic stepper motors. The linear motor is capable of exerting 63 N of force at a pressure of 0...
May 21, 2018: Annals of Biomedical Engineering
https://www.readbyqxmd.com/read/29786742/a-novel-alendronate-functionalized-nanoprobe-for-simple-colorimetric-detection-of-cancer-associated-hypercalcemia
#5
Abhishek Sahu, Youngmin Hwang, Cristian Vilos, Jong-Min Lim, Sunghyun Kim, Won Il Choi, Giyoong Tae
The calcium (Ca2+) ion concentration in the blood serum is tightly regulated, and any abnormalities in the level of serum calcium ions are associated with many potentially dangerous diseases. Thus, monitoring of the Ca2+ ion concentration in the blood serum is of fundamental importance. Gold nanoparticle (GNP)-based colorimetric biosensors have enormous potential in clinical diagnostic applications due to their simplicity, versatility, and unique optical properties. In this study, we have developed an alendronate functionalized gold nanoparticle (GNP-ALD) system for the measurement of Ca2+ ion concentration in biological samples...
May 22, 2018: Nanoscale
https://www.readbyqxmd.com/read/29786715/cancer-cell-membrane-coated-magnetic-nanoparticles-for-mr-nir-fluorescence-dual-modal-imaging-and-photodynamic-therapy
#6
Jiong Li, Xuandong Wang, Dongye Zheng, Xinyi Lin, Zuwu Wei, Da Zhang, Zhuanfang Li, Yun Zhang, Ming Wu, Xiaolong Liu
Theranostic nanoprobes integrated with dual-modal imaging and therapeutic functions, such as photodynamic therapy (PDT), have exhibited significant potency in cancer treatments due to their high imaging accuracy and non-invasive advantages for cancer elimination. However, biocompatibility and highly efficient accumulation of these nanoprobes in tumor are still unsatisfactory for clinical application. In this study, a photosensitizer -loaded magnetic nanobead with surface further coated with a layer of cancer cell membrane (SSAP-Ce6@CCM) was designed to improve the biocompatibility and cellular uptake and ultimately achieve enhanced MR/NIR fluorescence imaging and PDT efficacy...
May 22, 2018: Biomaterials Science
https://www.readbyqxmd.com/read/29786591/-patient-with-spine-pain-and-magnetic-resonance-imaging-result
#7
Anna Babińska, Wojciech Wawrzynek, Jarosław Skupiński, Sabina Kasprowska, Małgorzata Piechota, Beata Łabuz-Roszak
Degenerative spine disease is a serious social problem. In most cases, it causes pain and neurological symptoms. Most patients are therefore referred for magnetic resonance imaging (MRI). The article discusses the relationship between back pain and magnetic resonance changes. The signification of some of the radiological symptoms remains controversial. Some of them are markers of acute pain, others may be clinically insignificant, occurring with age. Authors presents some of the magnetic resonance alterations and based on the latest articles discusses their clinical significance...
2018: Wiadomości Lekarskie: Organ Polskiego Towarzystwa Lekarskiego
https://www.readbyqxmd.com/read/29786534/-the-gynecological-pessary-is-it-really-a-device-of-another-age-a-fig-leaf
#8
E Nohuz, E Jouve, G Clement, B Jacquetin
OBJECTIVES: The use of pessary to put back up prolapsed organs to their normal position dates back prior to several millennia. This work aims to discuss its place in our clinical practice through an updated bibliographic review and emphasizes a hands-on approach to pessary fitting and management in terms of indication, pessary type selection, device' size, insertion, removal, follow-up visits and care. METHODS: A review of the literature, in the light of the latest publications and recommendations of French and international learned societies, as well as our own experience, were analyzed...
May 18, 2018: Gynecologie, Obstetrique, Fertilite & Senologie
https://www.readbyqxmd.com/read/29786491/validation-of-pi-rads-version-2-in-transition-zone-lesions-for-the-detection-of-prostate-cancer
#9
Janice N Thai, Harish A Narayanan, Arvin K George, M Minhaj Siddiqui, Parita Shah, Francesca V Mertan, Maria J Merino, Peter A Pinto, Peter L Choyke, Bradford J Wood, Baris Turkbey
Purpose To determine the association between Prostate Imaging Reporting and Data System (PI-RADS) version 2 scores and prostate cancer (PCa) in a cohort of patients undergoing biopsy of transition zone (TZ) lesions. Materials and Methods A total of 634 TZ lesions in 457 patients were identified from a prospectively maintained database of consecutive patients undergoing prostate magnetic resonance imaging. Prostate lesions were retrospectively categorized with the PI-RADS version 2 system by two readers in consensus who were blinded to histopathologic findings...
May 18, 2018: Radiology
https://www.readbyqxmd.com/read/29786490/gallium-68-psma-11-pet-mr-imaging-in-patients-with-intermediate-or-high-risk-prostate-cancer
#10
Sonya Youngju Park, Claudia Zacharias, Caitlyn Harrison, Richard E Fan, Christian Kunder, Negin Hatami, Frederik Giesel, Pejman Ghanouni, Bruce Daniel, Andreas M Loening, Geoffrey A Sonn, Andrei Iagaru
Purpose To report the results of dual-time-point gallium 68 (68 Ga) prostate-specific membrane antigen (PSMA)-11 positron emission tomography (PET)/magnetic resonance (MR) imaging prior to prostatectomy in patients with intermediate- or high-risk cancer. Materials and Methods Thirty-three men who underwent conventional imaging as clinically indicated and who were scheduled for radical prostatectomy with pelvic lymph node dissection were recruited for this study. A mean dose of 4.1 mCi ± 0.7 (151.7 MBq ± 25...
May 16, 2018: Radiology
https://www.readbyqxmd.com/read/29786482/human-epidermal-growth-factor-2-positive-breast-cancer-with-mammographic-microcalcification-relationship-to-pathologic-complete-response-after-neoadjuvant-chemotherapy
#11
Fayyaz A K Mazari, Nisha Sharma, David Dodwell, Kieran Horgan
Purpose To determine the relationship between the presence or absence of mammographic calcifications in human epidermal growth factor receptor 2 (HER2)-positive breast cancers and pathologic complete response (pCR) to neoadjuvant chemotherapy and to determine other tumor and clinical characteristics that may be predictive of such a response. Materials and Methods A database of all patients with HER2-positive breast cancer who underwent neoadjuvant chemotherapy between 2007 and 2015 was retrospectively reviewed...
May 16, 2018: Radiology
https://www.readbyqxmd.com/read/29786464/what-can-we-learn-from-diffusion-tensor-imaging-from-a-large-traumatic-brain-injury-cohort-white-matter-integrity-and-its-relationship-with-outcome
#12
Ana M Castaño-Leon, Marta Cicuendez, Blanca Navarro, Pablo M Munarriz, Santiago Cepeda, Igor Paredes, Amaya Hilario, Ana Ramos, Pedro Antonio Gomez, Alfonso Lagares
Traumatic axonal injury (TAI) contributes significantly to mortality and morbidity after traumatic brain injury (TBI) but its identification is still a diagnostic challenge because of the limitations of conventional imaging techniques to characterized it. Diffusion tensor imaging (DTI) can indirectly identify areas of damaged white matter (WM) integrity by detecting water molecules diffusion alterations. Therefore, DTI may improve detection and description of TAI lesions after TBI. We have obtained DTI data from 217 patients with moderate to severe TBI acquired at median 19 days after TBI were and patient DTI metrics were compared with data obtained from 58 age-matched healthy controls...
May 22, 2018: Journal of Neurotrauma
https://www.readbyqxmd.com/read/29786463/hybrid-diffusion-imaging-in-mild-traumatic-brain-injury
#13
Yu-Chien Wu, Sourajit Mitra Mustafi, Jaroslaw Harezlak, Chandana Kodiweera, Laura A Flashman, Thomas McAllister
Mild traumatic brain injury (mTBI) is an important public health problem. Although conventional medical imaging techniques can detect moderate-to-severe injuries, they are relatively insensitive to mTBI. In this study, we used hybrid diffusion imaging (HYDI) to detect white-matter alterations in nineteen patients with mTBI and 23 other trauma-control patients. Within 15 days (SD=10) of brain injury, all subjects underwent magnetic-resonance HYDI and were assessed with battery of neuropsychological tests of sustained attention, memory, and executive function...
May 22, 2018: Journal of Neurotrauma
https://www.readbyqxmd.com/read/29786126/prophylactic-central-compartment-neck-dissection-in-papillary-thyroid-cancer-and-effect-on-locoregional-recurrence
#14
David T Hughes, Jennifer E Rosen, Douglas B Evans, Elizabeth Grubbs, Tracy S Wang, Carmen C Solórzano
BACKGROUND: Prophylactic central compartment neck dissection (pCCND) in addition to total thyroidectomy (TT) includes removal of central compartment lymph nodes in the absence of clinical involvement on preoperative and intraoperative evaluation. The data regarding the influence of pCCND on oncologic outcomes and surgical complication rates is mixed and, therefore, is the focus of this analysis. METHODS: A systematic review of the literature on total thyroidectomy with prophylactic central compartment neck dissection (TT + pCCND) from January 1990 to October 2017 identified 221 abstracts of which 17 met inclusion criteria and were reviewed (1 randomized-control trial, 13 retrospective cohort studies, and 3 meta-analyses)...
May 21, 2018: Annals of Surgical Oncology
https://www.readbyqxmd.com/read/29786046/effect-of-double-balloon-enteroscopy-on-diagnosis-and-treatment-of-small-bowel-diseases
#15
Li Tang, Liu-Ye Huang, Jun Cui, Cheng-Rong Wu
Background: The diagnosis and treatment of small-bowel diseases is clinically difficult. The purpose of this study was to evaluate the diagnostic and therapeutic value of double-balloon enteroscopy in small-bowel diseases. Methods: The history and outcomes of 2806 patients who underwent double-balloon enteroscopy from July 2004 to April 2017 were reviewed, which included 562 patients with obscure digestive tract bleeding, 457 patients with obscure diarrhea, 930 patients with obscure abdominal pain, 795 patients with obscure weight loss, and 62 patients with obscure intestinal obstruction...
June 5, 2018: Chinese Medical Journal
https://www.readbyqxmd.com/read/29786009/comparison-of-optical-coherence-tomography-angiography-and-fundus-fluorescein-angiography-features-of-retinal-capillary-hemangioblastoma
#16
Pradeep Sagar, R Rajesh, Mahesh Shanmugam, Vinaya Kumar Konana, Divyansh Mishra
The aim of this study is to compare the optical coherence tomography angiography (OCTA) and fundus fluorescein angiography (FFA) features of retinal capillary hemangioblastoma (RCH). This is an observational case series of three patients with von Hippel-Lindau (VHL) disease and one patient with juxtapapillary RCH. All patients underwent FFA with a mydriatic fundus camera and OCTA with swept-source angio OCT. The FFA and OCTA characteristics of tumors were compared. In our series, FFA could identify tumors as small as the width of a third-order retinal artery, which was missed on clinical examination...
June 2018: Indian Journal of Ophthalmology
https://www.readbyqxmd.com/read/29785997/endoillumination-chandelier-and-wide-angle-viewing-assisted-fine-needle-aspiration-biopsy-of-intraocular-mass-lesions
#17
Pradeep Venkatesh, Seema Kashyap, Shreyas Temkar, Varun Gogia, Gaurav Garg, Rahul Kumar Bafna
Fine-needle aspiration biopsy (FNAB) of intraocular mass lesions is an important intervention in the presence of diagnostic difficulty. FNAB of intraocular mass lesions is also likely to become more commonly recommended for prognostication of tumors such as choroidal melanoma. The most commonly described approach for tumor localization and visualization during FNAB is transillumination and indirect ophthalmoscopic viewing. Herein, we report endoillumination (chandelier) and wide-angle viewing assisted, microscope-based approach for FNAB in two patients using two port minimally invasive vitreoretinal surgical approach...
June 2018: Indian Journal of Ophthalmology
https://www.readbyqxmd.com/read/29785933/a-comparison-of-peripheral-imaging-technologies-for-bone-and-muscle-quantification-a-review-of-segmentation-techniques
#18
REVIEW
Andy Kin On Wong, Sarah Lynn Manske
Musculoskeletal science has developed many overlapping branches, necessitating specialists from 1 area of focus to often require the expertise in others. In terms of imaging, this means obtaining a comprehensive illustration of bone, muscle, and fat tissues. There is currently a lack of a reliable resource for end users to learn about these tissues' imaging and quantification techniques together. An improved understanding of these tissues has been an important progression toward better prediction of disease outcomes and better elucidation of their interaction with frailty, aging, and metabolic disorders...
April 17, 2018: Journal of Clinical Densitometry
https://www.readbyqxmd.com/read/29785839/optimization-of-a-secondary-voi-protocol-for-lung-imaging-in-a-clinical-ct-scanner
#19
Thomas C Larsen, Vissagan Gopalakrishnan, Jianhua Yao, Catherine P Nguyen, Marcus Y Chen, Joel Moss, Han Wen
We present a solution to meet an unmet clinical need of an in-situ "close look" at a pulmonary nodule or at the margins of a pulmonary cyst revealed by a primary (screening) chest CT while the patient is still in the scanner. We first evaluated options available on current whole-body CT scanners for high resolution screening scans, including ROI reconstruction of the primary scan data and HRCT, but found them to have insufficient SNR in lung tissue or discontinuous slice coverage. Within the capabilities of current clinical CT systems, we opted for the solution of a secondary, volume-of-interest (VOI) protocol where the radiation dose is focused into a short-beam axial scan at the z position of interest, combined with a small-FOV reconstruction at the xy position of interest...
May 21, 2018: Journal of Applied Clinical Medical Physics
https://www.readbyqxmd.com/read/29785834/development-of-a-robust-mri-fiducial-system-for-automated-fusion-of-mr-us-abdominal-images
#20
Christopher P Favazza, Krzysztof R Gorny, Matthew R Callstrom, Anil N Kurup, Michael Washburn, Pamela S Trester, Charles L Fowler, Nicholas J Hangiandreou
We present the development of a two-component magnetic resonance (MR) fiducial system, that is, a fiducial marker device combined with an auto-segmentation algorithm, designed to be paired with existing ultrasound probe tracking and image fusion technology to automatically fuse MR and ultrasound (US) images. The fiducial device consisted of four ~6.4 mL cylindrical wells filled with 1 g/L copper sulfate solution. The algorithm was designed to automatically segment the device in clinical abdominal MR images...
May 21, 2018: Journal of Applied Clinical Medical Physics
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