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https://www.readbyqxmd.com/read/29346805/mesenteric-vessel-patency-following-hifu-therapy-in-patients-with-locally-invasive-pancreatic-cancer
#1
Holger M Strunk, Caroline Lützow, Jana Henseler, Martin Mücke, Maximilian Rauch, Christian Marx, Hans H Schild, Milka Marinova
PURPOSE:  To evaluate the effects of HIFU therapy on visceral vessel patency in patients with inoperable locally invasive pancreatic cancer. MATERIALS AND METHODS:  50 pancreatic cancer patients (26 men, 24 women) aged 41 - 82 years (65.0 ± 10.2) underwent ultrasonography (US) and computed tomography (CT) examinations before and within one day after HIFU treatment, as well as at follow-up at six weeks, three months and six months. Evaluation and grading were performed by two experienced independent radiologists according to a classification scheme based on vessel involvement, vessel diameter, patency, and defects in flow...
January 18, 2018: Ultraschall in der Medizin
https://www.readbyqxmd.com/read/29340038/diagnostic-performance-of-68gallium-psma-11-pet-ct-to-detect-significant-prostate-cancer-and-comparison-with-18fec-pet-ct
#2
Manuela A Hoffmann, Matthias Miederer, Helmut J Wieler, Christian Ruf, Frank M Jakobs, Mathias Schreckenberger
Background: Radiolabeled prostate-specific membrane antigen (PSMA) has proven to be a highly accurate method to detect recurrence and metastases of prostate cancer, but only sparse data is available about its performance in the diagnosis of clinically significant primary prostate cancer. Methods: We compared 68Ga-PSMA-11 PET/CT in 25 patients with 18FEC PET/CT in 40 patients with suspected prostate carcinoma based on an increased PSA level.The PET/CT results were compared with the histopathologic Gleason Score (GS) of biopsies...
December 19, 2017: Oncotarget
https://www.readbyqxmd.com/read/29339575/dynamic-pet-image-reconstruction-integrating-temporal-regularization-associated-with-respiratory-motion-correction-for-applications-in-oncology
#3
Thibaut Merlin, Dimitris Visvikis, Philippe Fernandez, Frederic Lamare
Respiratory motion reduces both the qualitative and quantitative accuracy of PET images in oncology. This impact is more significant for quantitative applications based on kinetic modeling, where dynamic acquisitions are associated with limited statistics due to the necessity of enhanced temporal resolution. The aim of this study is to address these drawbacks by combining within a unique reconstruction algorithm in dynamic PET imaging, a respiratory motion correction approach, as well as a temporal regularization...
January 17, 2018: Physics in Medicine and Biology
https://www.readbyqxmd.com/read/29339420/linc00673-rs11655237-c-t-confers-neuroblastoma-susceptibility-in-chinese-population
#4
Zhuorong Zhang, Yitian Chang, Wei Jia, Jiao Zhang, Ruizhong Zhang, Jinhong Zhu, Tianyou Yang, Huimin Xia, Yan Zou, Jing He
Neuroblastoma, which accounts for approximately 10% of all pediatric cancer-related deaths, has become a therapeutic challenge and global burden attributed to poor outcomes and mortality rates of its high-risk form. Previous genome-wide association studies identified the LINC00673 rs11655237 C>T polymorphism to be associated with the susceptibility of several malignant tumors. However, the association between this polymorphism and neuroblastoma susceptibility is not clear. We genotyped LINC00673 rs11655237 C>T in 393 neuroblastoma patients in comparison with 812 age-, gender- and ethnic-matched healthy controls...
January 16, 2018: Bioscience Reports
https://www.readbyqxmd.com/read/29338082/racial-ethnic-differences-in-thyroid-cancer-incidence-in-the-united-states-2007-2014
#5
Kristin S Weeks, Amanda R Kahl, Charles F Lynch, Mary E Charlton
BACKGROUND: Small tumor diagnostic tools including ultrasound-guided fine needle aspiration (FNA) and computed tomography (CT) could be causing rising and racially/ethnically different thyroid cancer incidence rates due to variable overdiagnosis of indolent tumors. Papillary tumors and <40 mm tumors are most likely to be overdiagnosed as indolent tumors by FNA and CT. METHODS: Age-adjusted incidence rates (AAIRs) for the years 2007-2014 were calculated for race/ethnicity (white, Hispanic, Asian, African American, Native American) by patient/tumor characteristics for microscopically confirmed malignant thyroid cancer cases in the Surveillance, Epidemiology, and End Results Program 18 database (SEER 18; N = 93,607)...
January 16, 2018: Cancer
https://www.readbyqxmd.com/read/29337783/s1-sacrectomy-for-re-recurrent-rectal-cancer-our-experience-with-reconstruction-using-an-expandable-vertebral-body-replacement-device
#6
Daniel Jin Keat Lee, Kelvin Yafan Wang, Peter Michael Sagar, Jake Timothy
INTRODUCTION: R0 resection is achieved by high sacrectomy for local recurrence of colorectal cancer, but significant rates of perioperative complications and long-term patient morbidity are associated with this procedure. In this report, we outline our unique experience of using an expandable cage for vertebral body reconstruction following S1 sacrectomy in a 66-year-old patient with re-recurrent rectal cancer. We aim to highlight several key steps, with a view to improving postoperative outcomes...
February 2018: Diseases of the Colon and Rectum
https://www.readbyqxmd.com/read/29335867/can-ct-based-radiomics-signature-predict-kras-nras-braf-mutations-in-colorectal-cancer
#7
Lei Yang, Di Dong, Mengjie Fang, Yongbei Zhu, Yali Zang, Zhenyu Liu, Hongmei Zhang, Jianming Ying, Xinming Zhao, Jie Tian
OBJECTIVES: To investigate whether CT-based radiomics signature can predict KRAS/NRAS/BRAF mutations in colorectal cancer (CRC). METHODS: This retrospective study consisted of a primary cohort (n = 61) and a validation cohort (n = 56) with pathologically confirmed CRC. Patients underwent KRAS/NRAS/BRAF mutation tests and contrast-enhanced CT before treatment. A total of 346 radiomics features were extracted from portal venous-phase CT images of the entire primary tumour...
January 15, 2018: European Radiology
https://www.readbyqxmd.com/read/29334204/detection-of-chlamydia-trachomatis-in-pap-smear-samples-from-south-khorasan-province-of-iran
#8
Davod Javanmard, Mahmoodreza Behravan, Malaknaz Ghannadkafi, Alireza Salehabadi, Masood Ziaee, Mohammad Hasan Namaei
Background: Chlamydia trachomatis (CT), the most common bacterial sexually transmitted infection (STI), leads to pelvic inflammatory disease, infertility and chronic pelvic pain in women as well as an increased risk of vertical transmission, conjunctivitis and pneumonitis in infants. It may also be a co-factor along with human papillomavirus (HPV) in cervical cancer progression. We aimed to determine the prevalence of CT genotypes in genital specimens of women from South Khorasan, Iran and to test the association between CT and cytology statistics...
April 2018: International Journal of Fertility & Sterility
https://www.readbyqxmd.com/read/29333004/drosha-rs642321-polymorphism-influence-susceptibility-to-childhood-acute-lymphoblastic-leukemia-a-preliminary-report
#9
Mohammad Hashemi, Seyed-Shahaboddin Hasani, Majid Naderi
Introduction: It has been well known that the microRNA biogenesis is involved in the pathogenesis of various diseases. We investigated the possible association between DROSHA rs642321 variant and risk of acute lymphocytic leukemia (ALL). Materials and Methods: We genotyped 75 children diagnosed with ALL and 115 age- and sex-matched children with no history of cancer of any type (as the control group) by the tetra amplification refractory mutation system-polymerase chain reaction...
October 2017: Indian Journal of Medical and Paediatric Oncology
https://www.readbyqxmd.com/read/29330380/automatic-segmentation-of-the-solid-core-and-enclosed-vessels-in-subsolid-pulmonary-nodules
#10
Jean-Paul Charbonnier, Kaman Chung, Ernst T Scholten, Eva M van Rikxoort, Colin Jacobs, Nicola Sverzellati, Mario Silva, Ugo Pastorino, Bram van Ginneken, Francesco Ciompi
Subsolid pulmonary nodules are commonly encountered in lung cancer screening and clinical routine. Compared to other nodule types, subsolid nodules are associated with a higher malignancy probability for which the size and mass of the nodule and solid core are important indicators. However, reliably measuring these characteristics on computed tomography (CT) can be hampered by the presence of vessels encompassed by the nodule, since vessels have similar CT attenuation as solid cores. This can affect treatment decisions and patient management...
January 12, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29329882/prognostic-significance-of-residual-lymph-node-status-after-definitive-chemoradiotherapy-in-patients-with-node-positive-cervical-cancer
#11
Shin-Hyung Park, Hyejin Cheon, Gun Oh Chong, Shin Young Jeong, Jeong Eun Lee, Min Kyu Kang, Mi Young Kim, Jeong Won Lee, Junhee Park, Jae-Chul Kim
OBJECTIVE: Lymph node involvement is an important prognostic factor in patients with cervical cancer. However, the prognostic significance of lymph node response to chemoradiotherapy remains unclear. We retrospectively analyzed the relationship between residual lymph node status after definitive chemoradiotherapy and survival. METHODS: We enrolled 117 patients with node-positive cervical cancer. All patients were treated with definitive chemoradiotherapy in our institution, from 2006 to 2016...
January 9, 2018: Gynecologic Oncology
https://www.readbyqxmd.com/read/29329660/cochlea-ct-radiomics-predicts-chemoradiotherapy-induced-sensorineural-hearing-loss-in-head-and-neck-cancer-patients-a-machine-learning-and-multi-variable-modelling-study
#12
Hamid Abdollahi, Shayan Mostafaei, Susan Cheraghi, Isaac Shiri, Seied Rabi Mahdavi, Anoshirvan Kazemnejad
OBJECTIVES: Immediately or after head-and-neck (H&N) cancer chemoradiotherapy (CRT), patients may undergone significant sensorineural hearing loss (SNHL) which could affect their quality of life. Radiomic feature analysis is proposed to predict SNHL induced by CRT. MATERIAL AND METHODS: 490 image features of 94 cochlea from 47 patients treated with three dimensional conformal RT (3DCRT) for different H&N cancers were extracted from CT images. Different machine learning (ML) algorithms and also least absolute shrinkage and selection operator (LASSO) penalized logistic regression were implemented on radiomic features for feature selection, classification and prediction...
January 9, 2018: Physica Medica: PM
https://www.readbyqxmd.com/read/29328398/synergistic-antitumor-effect-of-brusatol-combined-with-cisplatin-on-colorectal-cancer-cells
#13
Hai-Ming Chen, Zheng-Quan Lai, Hui-Jun Liao, Jian-Hui Xie, Yan-Fang Xian, Yun-Long Chen, Siu-Po Ip, Zhi-Xiu Lin, Zi-Ren Su
Colorectal cancer (CRC) is a common and life‑threatening type of malignant cancer, which is associated with a high mortality rate. Cisplatin (CDDP) is a commonly used chemotherapy drug with significant side effects. Brusatol (BR) is one of the principal chemical compounds isolated from the Chinese herb Bruceae Fructus, which has been reported to markedly inhibit the proliferation of numerous cancer cell lines. The present study aimed to investigate the possible synergistic anticancer effects of CDDP combined with BR on CT‑26 cells, and to evaluate the underlying mechanisms of action...
January 9, 2018: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/29327180/chemotherapy-with-or-without-definitive-radiation-therapy-in-inoperable-pancreatic-cancer
#14
Jim Zhong, Jeffrey Switchenko, Madhusmita Behera, David Kooby, Shishir K Maithel, Mark W McDonald, Jolinta Y Lin, Richard J Cassidy, Bassel El-Rayes, Jerome Landry, Pretesh R Patel
BACKGROUND: The LAP07 randomized trial calls into question the role of radiation therapy (RT) in the modern treatment of locally advanced pancreatic cancer (LAPC). However, advances in chemotherapy and RT limit application of the LAP07 results to current clinical practice. Here we utilize the National Cancer Database (NCDB) to evaluate the effects of RT in patients receiving chemotherapy for LAPC. METHODS: Using the NCDB, patients with American Joint Committee on Cancer (AJCC) clinical stage T2-4, N0-1, M0 adenocarcinoma of the pancreas from 2004 to 2014 were analyzed...
January 11, 2018: Annals of Surgical Oncology
https://www.readbyqxmd.com/read/29326358/targeted-alpha-therapy-of-mcrpc-with-225actinium-psma-617-swimmer-plot-analysis-suggests-efficacy-regarding-duration-of-tumor-control
#15
Clemens Kratochwil, Frank Bruchertseifer, Hendrik Rathke, Markus Hohenfellner, Frederik L Giesel, Uwe Haberkorn, Alfred Morgenstern
The aim of this evaluation is to identify first indicators regarding the efficacy of 225Ac-PSMA-617 therapy in a retrospectively analyzed group of patients. Methods: Forty patients with metastatic castration-resistant prostate cancer were selected for treatment with 3 cycles of 100 kBq/kgBW 225Ac-PSMA-617 in 2 months intervals. Prostate-specific antigen (PSA) and blood cell count were measured every 4 weeks. Prostate-specific membrane antigen (PSMA)-PET/CT or PSMA-SPECT/CT were used for baseline staging and imaging follow-up at month six...
January 11, 2018: Journal of Nuclear Medicine: Official Publication, Society of Nuclear Medicine
https://www.readbyqxmd.com/read/29325432/risk-factors-for-primary-failure-of-metallic-ureteral-stents-experience-from-a-tertiary-center
#16
Jui-Shan Hsu, Chao-Yuan Huang, Kao-Lang Liu, Po-Ming Chow
INTRODUCTION: We provide primary patency rate of metallic ureteral stents in cancer patients and investigate the factors affecting primary patency. METHODS: All cancer patients who had received metallic stents for malignant ureteral obstruction between July 2009 and November 2012 in our institute were included. No patients were excluded. Patient profiles, imaging studies, and lab data were collected. Patient profiles included age, gender, body height, body weight, body mass index, cancer types, treatment for cancer, response to cancer treatment, methods of stent insertion, and prior ordinary stents...
January 12, 2018: Journal of Endourology
https://www.readbyqxmd.com/read/29320323/multimodality-imaging-including-dual-energy-ct-in-the-evaluation-of-gallbladder-disease
#17
Lisa Ratanaprasatporn, Jennifer W Uyeda, Jeremy R Wortman, Ian Richardson, Aaron D Sodickson
Imaging of the gallbladder has a key role in the examination of patients with abdominal pain-especially pain localized to the right upper quadrant. Pathologic conditions that affect the gallbladder include cholelithiasis and associated complications such as acute and chronic cholecystitis, choledocholithiasis, gallstone pancreatitis, and cancer. Modalities used to image the gallbladder include ultrasonography (US), computed tomography (CT), magnetic resonance (MR) imaging, and nuclear scintigraphy. US is the primary imaging modality used to evaluate entities suspected of being gallbladder disease, as it is both sensitive and specific for demonstrating gallstones, biliary duct dilatation, and inflammatory features...
January 2018: Radiographics: a Review Publication of the Radiological Society of North America, Inc
https://www.readbyqxmd.com/read/29317048/imaging-skeletal-muscle-volume-density-and-fdg-uptake-before-and-after-induction-therapy-for-non-small-cell-lung-cancer
#18
M D Goncalves, S Taylor, D F Halpenny, E Schwitzer, S Gandelman, J Jackson, A Lukose, A J Plodkowski, K S Tan, M Dunphy, L W Jones, R J Downey
AIM: To assess whether changes in body composition could be assessed serially using conventional thoracic computed tomography (CT) and positron-emission tomography (PET)/CT imaging in patients receiving induction chemotherapy for non-small cell lung cancer (NSCLC). MATERIALS AND METHODS: CT-based skeletal muscle volume and density were measured retrospectively from thoracic and lumbar segment CT images from 88 patients with newly diagnosed and untreated NSCLC before and after induction chemotherapy...
January 6, 2018: Clinical Radiology
https://www.readbyqxmd.com/read/29316453/degradable-rhenium-trioxide-nanocubes-with-high-localized-surface-plasmon-resonance-absorbance-like-gold-for-photothermal-theranostics
#19
Wenlong Zhang, Guoying Deng, Bo Li, Xinxin Zhao, Tao Ji, Guosheng Song, Zhiyin Xiao, Qing Cao, Jingbo Xiao, Xiaojuan Huang, Guoqiang Guan, Rujia Zou, Xinwu Lu, Junqing Hu
The applications of inorganic theranostic agents in clinical trials are generally limited to their innate non-biodegradability and potential long-term biotoxicity. To address this problem, herein via a straightforward and tailored space-confined on-substrate route, we obtained rhenium trioxide (ReO3) nanocubes (NCs) that display a good biocompatibility and biosafety. Importantly, their aqueous dispersion has high localized surface plasmon resonance (LSPR) absorbance in near-infrared (NIR) region different from previous report, which possibly associates with the charge transfer and structural distortion in hydrogen rhenium bronze (HxReO3), as well as ReO3's cubic shape...
December 27, 2017: Biomaterials
https://www.readbyqxmd.com/read/29316129/anastomotic-leakage-after-side-to-end-anastomosis-for-rectal-cancer-does-leakage-location-matter
#20
Elisabeth Hain, Léon Maggiori, Magaly Zappa, Justine Prost À la Denise, Yves Panis
AIM: To assess outcome according to location of anastomotic leakage (AL) after side-to-end stapler or manual low colorectal or coloanal anastomosis following laparoscopic total mesorectal excision (TME) for rectal cancer. METHODS: All patients presenting with symptomatic or asymptomatic AL after TME and side-to-end low anastomosis for rectal cancer performed from 2005 to 2014 were identified from our prospective database. CT-scans with contrast enema were reviewed to assess location of AL origin...
January 6, 2018: Colorectal Disease: the Official Journal of the Association of Coloproctology of Great Britain and Ireland
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