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https://www.readbyqxmd.com/read/28520513/rectal-mucinous-adenocarcinoma-mr-imaging-assessment-of-response-to-concurrent-chemotherapy-and-radiation-therapy-a-hypothesis-generating-study
#1
Seung Hyun Park, Joon Seok Lim, Jinae Lee, Ha Yan Kim, Woong Sub Koom, Hyuk Hur, Mi-Suk Park, Myeong-Jin Kim, Honsoul Kim
Purpose To develop a system for assessment of tumor regression grade (TRG) with magnetic resonance (MR) imaging that is applicable to rectal mucinous adenocarcinoma (RMAC) and to obtain a preliminary evaluation of the association of MR imaging assessment of TRG with response to preoperative concurrent chemotherapy and radiation therapy (CCRT). Materials and Methods This retrospective study was approved by the institutional review board, and informed consent was waived. Pre- and post-CCRT MR images of 59 patients with RMAC (median age, 59 years; range, 29-80 years; 42 men [median age, 59 years; range, 36-80 years] and 17 women [median age, 57 years; range, 29-79 years]) who underwent CCRT and subsequent elective resection from July 2005 to June 2015 were analyzed...
May 18, 2017: Radiology
https://www.readbyqxmd.com/read/28508778/supporting-molecular-tumor-boards-in-molecular-guided-decision-making-the-current-status-of-five-german-university-hospitals
#2
Marc Hinderer, Melanie Boerries, Florian Haller, Sebastian Wagner, Stefanie Sollfrank, Till Acker, Hans-Ulrich Prokosch, Jan Christoph
BACKGROUND: German university hospitals have started to establish molecular tumor boards in order to enable physicians to make molecular-guided decisions. OBJECTIVE: Our aim was to describe the organizational structure and procedures which are currently supporting the molecular tumor boards of five German university hospitals. METHODS: We conducted semi-structured interviews with experts of five university hospitals between December 2016 and February 2017...
2017: Studies in Health Technology and Informatics
https://www.readbyqxmd.com/read/28493790/endometrial-carcinoma-mr-imaging-based-texture-model-for-preoperative-risk-stratification-a-preliminary-analysis
#3
Yoshiko Ueno, Behzad Forghani, Reza Forghani, Anthony Dohan, Xing Ziggy Zeng, Foucauld Chamming's, Jocelyne Arseneau, Lili Fu, Lucy Gilbert, Benoit Gallix, Caroline Reinhold
Purpose To evaluate the associations among mathematical modeling with the use of magnetic resonance (MR) imaging-based texture features and deep myometrial invasion (DMI), lymphovascular space invasion (LVSI), and histologic high-grade endometrial carcinoma. Materials and Methods Institutional review board approval was obtained for this retrospective study. This study included 137 women with endometrial carcinomas measuring greater than 1 cm in maximal diameter who underwent 1.5-T MR imaging before hysterectomy between January 2011 and December 2015...
May 10, 2017: Radiology
https://www.readbyqxmd.com/read/28490983/institutional-experience-in-the-treatment-of-colorectal-liver-metastases-with-stereotactic-body-radiation-therapy
#4
Alejandra Méndez Romero, Fatma Keskin-Cambay, Rob M van Os, Joost J Nuyttens, Ben J M Heijmen, Jan N M IJzermans, Cornelis Verhoef
AIM: To investigate whether the impact of dose escalation in our patient population represented an improvement in local control without increasing treatment related toxicity. MATERIALS AND METHODS: A cohort of consecutive patients with colorectal liver metastases treated with stereotactic body radiation therapy (SBRT) between December 2002 and December 2013 were eligible for this study. Inclusion criteria were a Karnofsky performance status ≥80% and, according to the multidisciplinary tumor board, ineligibility for surgery or radiofrequency ablation...
March 2017: Reports of Practical Oncology and Radiotherapy
https://www.readbyqxmd.com/read/28489652/histone-deacetylase-inhibitors-enhance-cytotoxicity-towards-breast-tumors-while-preserving-the-wound-healing-function-of-adipose-derived-stem-cells
#5
Kiavash R Koko, Shaohua Chang, Ashleigh L Hagaman, Marc W Fromer, Ryan S Nolan, John P Gaughan, Ping Zhang, Jeffrey P Carpenter, Spencer A Brown, Martha Matthews, Dorothy Bird
INTRODUCTION: Paclitaxel improves the oncologic response of breast cancer resections; however, it may negatively affect the wound-healing potential of human adipose-derived stem cells (hASCs) for fat grafting and reconstructive surgery. Histone deacetylase inhibitors (HDACis) modify the epigenetic regulation of gene expression and stabilize microtubules similarly to paclitaxel, thus, creating a synergistic mechanism of cell cycle arrest. We aim to combine these drugs to enhance cytotoxicity towards breast cancer cells, while preserving the wound-healing function of hASCs for downstream reconstructive applications...
June 2017: Annals of Plastic Surgery
https://www.readbyqxmd.com/read/28480609/pancreatic-neuroendocrine-tumor-correlations-between-mri-features-tumor-biology-and-clinical-outcome-after-surgery
#6
Rodrigo Canellas, Grace Lo, Sreejita Bhowmik, Cristina Ferrone, Dushyant Sahani
PURPOSE: To assess which magnetic resonance imaging (MRI) features are associated with pNETs (pancreatic neuroendocrine tumors) grade based on the WHO classification, as well as identify MRI features related to disease progression after surgery. MATERIALS AND METHODS: In this Institutional Review Board (IRB)-approved study, 1.5T and 3.0T MRI scans of 80 patients with surgically verified pNETs were assessed. The images were evaluated for tumor location; size; pattern; predominant signal intensity on precontrast T1 - and T2 -weighted images, as well as on postcontrast arterial and portal venous phase T1 -weighted sequences; presence of pancreatic duct dilatation; pancreatic atrophy; restricted diffusion; vascular involvement by the tumor; extrapancreatic tumor spread; and synchronous liver metastases...
May 8, 2017: Journal of Magnetic Resonance Imaging: JMRI
https://www.readbyqxmd.com/read/28471204/-diagnostic-and-therapeutic-potential-of-membrane-hsp90
#7
O Vacek, M Pastorek, M Durech, B Vojtěšek, P Müller
BACKGROUND: Heat shock protein (HSP90) is a molecular chaperone involved in maintaining protein homeostasis by modulating stability of de novo synthesized proteins. Neoplastic cells with high metabolic rate have higher expression of HSP90 and develop so called "chaperone addiction". Specific inhibition of HSP90 has been therefore discussed as a viable therapeutic strategy and several inhibitors of HSP90 have already entered clinical trials. Recently, a novel role for HSP90 was found on plasma membrane of cancer cells...
2017: Klinická Onkologie: Casopis Ceské a Slovenské Onkologické Spolecnosti
https://www.readbyqxmd.com/read/28471203/-ascites-may-provide-useful-information-for-diagnosis-of-ovarian-cancer
#8
E Stuchlíková, M Zahradníková, R Nenutil, D Valík, B Vojtěšek, M Novotný, L Hernychova
BACKGROUND: Ovarian cancer is the most lethal gynecological cancer, almost 80% of all patients succumb the disease within 5 years of diagnosis. High mortality is caused especially by nonspecific symptoms, diagnosis in late stages and the absence of a specific biomarker. Currently, the most common diagnostic biomarkers are the membrane glycoprotein Cancer Antigen 125 (CA 125), the Human Epididymal Protein 4 (HE4) and the Carcinoembryonic Antigen (CAE). None of these biomarkers is specific only for ovarian cancer and increased levels may be caused by other diseases...
2017: Klinická Onkologie: Casopis Ceské a Slovenské Onkologické Spolecnosti
https://www.readbyqxmd.com/read/28471200/-fullerene-doxorubicin-nanotransporter-for-target-interaction-with-mutated-gene-brca2
#9
S Skaličková, M Löfelmann, M Gargulák, M Dočekalová, B Ruttkay-Nedecký, P Suchý, M Kepinská, R Kizek
BACKGROUND: Malignant breast tumors are in developed countries, the most common cancer affecting mainly women. It is estimated that approximately 5-10% of breast cancers are conditioned by genetic family burdens, caused by mutation in the BRCA2 gene. In the course of the treatment doxorubicin is frequently used therapeutics. Despite its therapeutic efficacy, however, it shows high cardiotoxicity. Possibility to increase the therapeutic window, represent nanotransporters. Fullerenes are nanoparticles composed of carbon atoms whose physical-chemical properties indicate high stability...
2017: Klinická Onkologie: Casopis Ceské a Slovenské Onkologické Spolecnosti
https://www.readbyqxmd.com/read/28471199/-zinc-modified-nanotransporter-for-target-drug-therapy-of-breast-cancer
#10
S Skaličková, M Gargulák, M Löffelmann, B Ruttkay-Nedecký, M Kepinská, T Parák, R Kizek
BACKGROUND: In the centre of nanomedical interest stands the nanotechnological modification of anthracycline antibiotics, which are often used in antitumor treatment of hematological malignancies and solid tumors. Chitosan nanoparticles are gaining more attention in the field of targeted transport of drugs because of their stability, low toxicity and simple preparation. The main objective of the project, was the design of chitosan nanotransporter of anthracycline antibiotics with zinc modified surface, for a specific interaction with metallothionein...
2017: Klinická Onkologie: Casopis Ceské a Slovenské Onkologické Spolecnosti
https://www.readbyqxmd.com/read/28471194/-lactate-dehydrogenase-old-tumour-marker-in-the-light-of-current-knowledge-and-preanalytic-conditions
#11
K Greplová, I Selingerová, D Valík, K Pilatova, M Češková, L Zdražilová Dubská
With the development and subsequent clinical applications of anticancer immuno-and angiomodulatory therapies and expanded knowledge on significance of tumor microenvironment for disease prognosis and treatment outcome, a classical blood analyte, lactate dehydrogenase (LDH), gains in importance as a tumor marker reflecting to some extent immunosupressive and angiogenic tumour milieu. Physical extravascular hemolysis due to complicated or inaccurate blood sampling interferes strongly with quantification of LDH in serum/plasma samples...
2017: Klinická Onkologie: Casopis Ceské a Slovenské Onkologické Spolecnosti
https://www.readbyqxmd.com/read/28463931/multiparametric-magnetic-resonance-imaging-of-the-prostate-repeatability-of-volume-and-apparent-diffusion-coefficient-quantification
#12
Andriy Fedorov, Mark G Vangel, Clare M Tempany, Fiona M Fennessy
OBJECTIVES: The aim of this study was to evaluate the repeatability of a region of interest (ROI) volume and mean apparent diffusion coefficient (ADC) in standard-of-care 3 T multiparametric magnetic resonance imaging (mpMRI) of the prostate obtained with the use of endorectal coil. MATERIALS AND METHODS: This prospective study was Health Insurance Portability and Accountability Act compliant, with institutional review board approval and written informed consent...
May 1, 2017: Investigative Radiology
https://www.readbyqxmd.com/read/28463155/correlation-of-acute-and-late-brainstem-toxicities-with-dose-volume-data-for-pediatric-patients-with-posterior-fossa-malignancies
#13
Ronica H Nanda, Rohit G Ganju, Edward Schreibmann, Zhengjia Chen, Chao Zhang, Naresh Jegadeesh, Richard Cassidy, Claudia Deng, Bree R Eaton, Natia Esiashvili
PURPOSE: Radiation-induced brainstem toxicity after treatment of pediatric posterior fossa malignancies is incompletely understood, especially in the era of intensity modulated radiation therapy (IMRT). The rates of, and predictive factors for, brainstem toxicity after photon RT for posterior fossa tumors were examined. METHODS AND MATERIALS: After institutional review board approval, 60 pediatric patients treated at our institution for nonmetastatic infratentorial ependymoma and medulloblastoma with IMRT were included in the present analysis...
June 1, 2017: International Journal of Radiation Oncology, Biology, Physics
https://www.readbyqxmd.com/read/28461257/the-iaslc-lung-cancer-staging-project-external-validation-of-the-revision-of-the-tnm-stage-groupings-in-the-eighth-edition-of-the-tnm-classification-of-lung-cancer
#14
Kari Chansky, Frank C Detterbeck, Andrew G Nicholson, Valerie W Rusch, Eric Vallières, Patti Groome, Catherine Kennedy, Mark Krasnik, Michael Peak, Lynn Shemanski, Vanessa Bolejack, John J Crowley, Hisao Asamura, Ramón Rami-Porta
INTRODUCTION: Revisions to the tumor, node, and metastasis (TNM) stage classifications for lung cancer, informed by the international database (n=94,708) of the International Association for the Study of Lung Cancer (IASLC) Staging and Prognostic Factors Committee, need external validation. The objective is to externally validate the revisions using the National Cancer Database (NCDB) of the American College of Surgeons. METHODS: Cases presenting from 2000 through 2012 were drawn from the NCDB and were reclassified according to 8(th) edition stage...
April 28, 2017: Journal of Thoracic Oncology
https://www.readbyqxmd.com/read/28459799/mapping-an-extended-neurochemical-profile-at-3-and-7-t-using-accelerated-high-resolution-proton-magnetic-resonance-spectroscopic-imaging
#15
Stephan Gruber, Eva Heckova, Bernhard Strasser, Michal Považan, Gilbert J Hangel, Lenka Minarikova, Siegfried Trattnig, Wolfgang Bogner
OBJECTIVES: The aim of this study was to compare high-resolution free induction decay magnetic resonance spectroscopic imaging (FID-MRSI) at 3 T and 7 T in the brain of healthy subjects and to showcase the clinical potential of accelerated FID-MRSI at 7 T in 2 brain tumor cases. MATERIALS AND METHODS: In this institutional review board-approved study, 10 healthy volunteers (8 men/2 women; age: 31 ± 6 years) were measured at 3 T and 7 T (Trio and 7T-Magnetom; Siemens Healthcare, Germany) and 2 patients (a 38-year-old man and a 37-year-old man), 1 with an anaplastic oligoastrocytoma (grade III) and 1 with a low-grade glioma (oligodendroglioma), were measured at 7 T...
April 28, 2017: Investigative Radiology
https://www.readbyqxmd.com/read/28458714/antiaging-and-anxiolytic-effects-of-combinatory-formulas-based-on-four-medicinal-herbs
#16
Rui Li, Wingman Chan, Waikin Mat, Yiucheong Ho, Rigil K Yeung, Shuiying Tsang, Hong Xue
The objective of the present study was to search for medicinal-herb combinations based on Radix Bupleurum chinense DC ("B"), Rhizoma Corydalis yanhusuo WT Wang ("Y"), Caulis Polygonum multiflorum Thunb ("P"), and Flos Albizia julibrissin Durazz ("A") for antiaging, anxiolytic, and sedative effects. Application of the D-galactose induced accelerated-aging model employing male ICR mice showed that oral administration of some combinations of B, Y, P, and A significantly improved spatial memory in Y-maze test and reduced brain levels of tumor necrosis factor-α and interleukin-6 based on immunoassays and oxidative stress marker malondialdehyde, based on the thiobarbituric acid test, and the loss of whiskers, indicating antiaging and antineurodegeneration effects...
2017: Evidence-based Complementary and Alternative Medicine: ECAM
https://www.readbyqxmd.com/read/28458603/assessment-of-cervical-cancer-with-a-parameter-free-intravoxel-incoherent-motion-imaging-algorithm
#17
Anton S Becker, Jose A Perucho, Moritz C Wurnig, Andreas Boss, Soleen Ghafoor, Pek-Lan Khong, Elaine Y P Lee
OBJECTIVE: To evaluate the feasibility of a parameter-free intravoxel incoherent motion (IVIM) approach in cervical cancer, to assess the optimal b-value threshold, and to preliminarily examine differences in the derived perfusion and diffusion parameters for different histological cancer types. MATERIALS AND METHODS: After Institutional Review Board approval, 19 female patients (mean age, 54 years; age range, 37-78 years) gave consent and were enrolled in this prospective magnetic resonance imaging study...
May 2017: Korean Journal of Radiology: Official Journal of the Korean Radiological Society
https://www.readbyqxmd.com/read/28453431/safety-and-efficacy-of-irreversible-electroporation-for-the-treatment-of-hepatocellular-carcinoma-not-amenable-to-thermal-ablation-techniques-a-retrospective-single-center-case-series
#18
Olivier Sutter, Joyce Calvo, Gisèle N'Kontchou, Jean-Charles Nault, Raffik Ourabia, Pierre Nahon, Nathalie Ganne-Carrié, Valérie Bourcier, Nora Zentar, Fatna Bouhafs, Nicolas Sellier, Abou Diallo, Olivier Seror
Purpose To assess the safety and efficacy of irreversible electroporation (IRE) in the treatment of patients with inoperable hepatocellular carcinoma (HCC) who are ineligible for thermal ablative techniques. Materials and Methods This retrospective study was approved by an ethics review board, and the requirement to obtain informed written consent was waived. From March 2012 to June 2015, 58 patients (median age, 65.4 years; range 41.6-90 years) with cirrhosis received IRE for the treatment of 75 HCC tumors...
April 28, 2017: Radiology
https://www.readbyqxmd.com/read/28448763/analysis-of-postoperative-ultrasonography-surveillance-after-hemithyroidectomy-in-patients-with-papillary-thyroid-microcarcinoma-a-multicenter-study
#19
Hye Jin Baek, Dong Wook Kim, Chang Yoon Lee, Jung Yin Huh, Jin Yong Sung, Yoon Jung Choi
OBJECTIVE: The optimal follow-up interval for postoperative ultrasonography (US) surveillance after hemithyroidectomy in patients with papillary thyroid microcarcinoma (PTMC) is unclear. The purpose of this study was to evaluate the prevalence of tumor recurrence/persistence and to investigate the appropriateness of postoperative US surveillance in PTMC patients who underwent hemithyroidectomy. METHODS: Our institutional review board approved this retrospective study...
April 27, 2017: Endocrine Practice
https://www.readbyqxmd.com/read/28446984/salvage-surgery-after-high-dose-radiotherapy
#20
REVIEW
Annemie Van Breussegem, Jeroen M Hendriks, Patrick Lauwers, Paul E Van Schil
Salvage surgery is a relatively new entity in thoracic surgery and oncology. Salvage resection after radiotherapy refers to surgery as only remaining therapeutic option in patients who were treated with high-dose stereotactic radiotherapy (SRT) for early-stage lung cancer or full-dose chemoradiation for locally advanced lung cancer. Indications include locally progressive tumors, recurrent local or locoregional disease, or specific complications after radiotherapy such as lung abscesses or infected, necrotic cavities...
April 2017: Journal of Thoracic Disease
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