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Radiology and Oncology

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https://read.qxmd.com/read/30712025/potential-of-osteopontin-in-the-management-of-epithelial-ovarian-cancer
#1
Katarina Cerne, Benjamin Hadzialjevic, Erik Skof, Ivan Verdenik, Borut Kobal
Background Osteopontin (sOPN) is a promising blood tumour marker for detecting epithelial ovarian cancer (EOC). However, other clinical uses of sOPN as a tumour marker in EOC are still lacking. Since sOPN concentrations in serum are not associated with those in ascites, we compared clinical value of sOPN concentrations in the two body fluids. Patients and methods The study included 31 women with advanced EOC and 34 women with benign gynaecological pathology. In the EOC group, serum for sOPN analysis was obtained preoperatively, after primary debulking surgery and after chemotherapy...
January 31, 2019: Radiology and Oncology
https://read.qxmd.com/read/30681975/ct-findings-predict-survival-of-patients-with-peripheral-t-cell-lymphoma-a-preliminary-study
#2
Wenbin Yang, Sen Jiang, Jianbang Lin, Yangkang Li
Background Peripheral T-cell lymphoma (PTCL) is an uncommon disease with poor clinical outcomes. Radiological reports on the survival of patients with PTCL are scarce. The purpose of this study is to investigate the prognostic value of CT findings to predict clinical outcomes in fifty-one patients with histologically proven PTCL. Patients and methods The clinical data and CT images of all patients were retrospectively reviewed. CT features including number of involvement sites, lesion size, shape, margin, density, peritumoral invasion, intratumoral necrosis, lymph node involvement, and degree of contrast enhancement were evaluated...
January 19, 2019: Radiology and Oncology
https://read.qxmd.com/read/30681974/diffusion-kurtosis-imaging-and-conventional-diffusion-weighted-imaging-to-assess-electrochemotherapy-response-in-locally-advanced-pancreatic-cancer
#3
Vincenza Granata, Roberta Fusco, Sergio Venanzio Setola, Raffaele Palaia, Vittorio Albino, Mauro Piccirillo, Robert Grimm, Antonella Petrillo, Francesco Izzo
Background The aim of the study was to evaluate diagnostic performance of functional parameters derived by conventional mono-exponential approach of diffusion weighted imaging (DWI) and by diffusion kurtosis imaging (DKI) in the assessment of pancreatic tumours treated with electrochemotherapy (ECT). Patients and methods Twenty-one consecutive patients with locally advanced pancreatic adenocarcinoma subjected to ECT were enrolled in a clinical approved trial. Among twenty-one enrolled patients, 13/21 (61.9%) patients were subjected to MRI before and after ECT...
January 19, 2019: Radiology and Oncology
https://read.qxmd.com/read/30661061/nadph-oxidase-inhibitor-vas2870-prevents-staurosporine-induced-cell-death-in-rat-astrocytes
#4
Janez Simenc, Damijana Mojca Juric, Metoda Lipnik-Stangelj
Background Astrocytes maintain central nerve system homeostasis and are relatively resistant to cell death. Dysfunction of cell death mechanisms may underlie glioblastoma genesis and resistance to cancer therapy; therefore more detailed understanding of astrocytic death modalities is needed in order to design effective therapy. The purpose of this study was to determine the effect of VAS2870, a pan-NADPH oxidase inhibitor, on staurosporine-induced cell death in astrocytes. Materials and methods Cultured rat astrocytes were treated with staurosporine as activator of cell death...
January 19, 2019: Radiology and Oncology
https://read.qxmd.com/read/30661060/external-beam-accelerated-partial-breast-irradiation-dosimetric-assessment-of-conformal-and-three-different-intensity-modulated-techniques
#5
Gábor Stelczer, Tibor Major, Norbert Mészáros, Csaba Polgár, Csilla Pesznyák
Background The aim of the study was to evaluate and compare four different external beam radiotherapy techniques of accelerated partial breast irradiation (APBI) considering target coverage, dose to organs at risk and overall plan quality. The investigated techniques were three dimensional conformal radiotherapy (3D-CRT), "step and shoot" (SS) and "sliding window" (SW) intensity-modulated radiotherapy (IMRT), intensity-modulated arc therapy (RA). Patients and methods CT scans of 40 APBI patients were selected for the study...
January 19, 2019: Radiology and Oncology
https://read.qxmd.com/read/30511939/state-of-the-art-in-magnetic-resonance-imaging-of-hepatocellular-carcinoma
#6
Natally Horvat, Serena Monti, Brunna Clemente Oliveira, Camila Carlos Tavares Rocha, Romina Grazia Giancipoli, Lorenzo Mannelli
Background Liver cancer is the sixth most common cancer worldwide and the second leading cause of cancer mortality. Chronic liver disease caused by viral infection, alcohol abuse, or other factors can lead to cirrhosis. Cirrhosis is the most important clinical risk factor for hepatocellular carcinoma (HCC) whereby the normal hepatic architecture is replaced by fibrous septa and a spectrum of nodules ranging from benign regenerative nodules to HCC, each one of them with different imaging features. Conclusions Furthermore, advanced techniques including the quantification of hepatic and intralesional fat and iron, magnetic resonance elastography, radiomics, radiogenomics, and positron emission tomography (PET)-MRI are highly promising for the extraction of new imaging biomarkers that reflect the tumor microenvironment and, in the future, may add decision-making value in the management of patients with HCC...
November 26, 2018: Radiology and Oncology
https://read.qxmd.com/read/30511938/dendritic-cell-profiles-in-the-inflamed-colonic-mucosa-predict-the-responses-to-tumor-necrosis-factor-alpha-inhibitors-in-inflammatory-bowel-disease
#7
Natasa Smrekar, David Drobne, Lojze M Smid, Ivan Ferkolj, Borut Stabuc, Alojz Ihan, Andreja Natasa Kopitar
Background Dendritic cells play crucial roles in the control of inflammation and immune tolerance in the gut. We aimed to investigate the effects of tumor necrosis factor alpha (TNFa) inhibitors on intestinal dendritic cells in patients with inflammatory bowel disease and the potential role of intestinal dendritic cells in predicting the response to treatment. Patients and methods Intestinal biopsies were obtained from 30 patients with inflammatory bowel disease before and after treatment with TNFa inhibitors...
November 26, 2018: Radiology and Oncology
https://read.qxmd.com/read/30511937/optic-nerve-ultrasound-for-fluid-status-assessment-in-patients-with-severe-preeclampsia
#8
Gabrijela Brzan Simenc, Jana Ambrozic, Katja Prokselj, Natasa Tul, Marta Cvijic, Tomislav Mirkovic, Helmut Karl Lackner, Miha Lucovnik
Background There are no data on usefulness of optic nerve sheath diameter (ONSD) as a marker of patient's fluid status in preeclampsia. The objective was to examine potential correlation between ONSD and lung ultrasound estimates of extravascular lung water in severe preeclampsia. Patients and methods Thirty patients with severe preeclampsia were included. Optic and lung ultrasound were performed within 24 hours from delivery. ONSD was measured 3 mm behind the globe. Lung ultrasound Echo Comet Score (ECS) was obtained summing B-lines ("comet tails") in parasternal intercostal spaces bilaterally...
November 26, 2018: Radiology and Oncology
https://read.qxmd.com/read/30511935/dynamic-expression-of-11-mirnas-in-83-consecutive-primary-and-corresponding-recurrent-glioblastoma-correlation-to-treatment-time-to-recurrence-overall-survival-and-mgmt-methylation-status
#9
Bostjan Matos, Emanuela Bostjancic, Alenka Matjasic, Mara Popovic, Damjan Glavac
Background Glioblastoma (GBM) is the most common and the most malignant glioma subtype. Among numerous genetic alterations, miRNAs contribute to pathogenesis of GBM and it is suggested that also to GBM recurrence and resistance to therapy. Based on publications, we have selected 11 miRNAs and analyzed their expression in GBM. We hypothesized that selected miRNAs are differentially expressed and involved in primary as well as in recurrent GBM, that show significant expressional differences when different treatment options are in question, and that are related to certain patients and tumor characteristics...
November 26, 2018: Radiology and Oncology
https://read.qxmd.com/read/30511933/nuclear-magnetic-resonance-metabolic-fingerprint-of-bevacizumab-in-mutant-idh1-glioma-cells
#10
Tanja Mesti, Nadia Bouchemal, Claire Banissi, Mohamed N Triba, Carole Marbeuf-Gueye, Maja Cemazar, Laurence Le Moyec, Antoine F Carpentier, Philippe Savarin, Janja Ocvirk
Background Malignant gliomas are rapidly growing tumours that extensively invade the brain and have bad prognosis. Our study was performed to assess the metabolic effects of bevacizumab on the glioma cells carrying the IDH1 mutation, a mutation, associated with better prognosis and treatment outcome. Bevacizumab is known to inhibit tumour growth by neutralizing the biological activity of vascular endothelial growth factor (VEGF). However, the direct effects of bevacizumab on tumour cells metabolism remain poorly known...
November 26, 2018: Radiology and Oncology
https://read.qxmd.com/read/30422804/image-guided-high-dose-rate-brachytherapy-versus-volumetric-modulated-arc-therapy-for-head-and-neck-cancer-a-comparative-analysis-of-dosimetry-for-target-volume-and-organs-at-risk
#11
Hironori Akiyama, Csilla Pesznyák, Dalma Béla, Örs Ferenczi, Tibor Major, Csaba Polgár, Zoltán Takácsi-Nagy
Background The aim of the study was to present dosimetric comparison of image guided high-dose-rate brachytherapy (IGBT) with volumetric modulated arc therapy (VMAT) for head and neck cancer regarding conformity of dose distribution to planning target volume (PTV) and doses to organs at risk (OARs). Patients and methods Thirty-eight consecutive patients with T1-4 mobile tongue, floor of mouth and base of tongue cancer treated with IGBT were selected. For these patients additional VMAT treatment plans were also prepared using identical computed tomography data...
November 12, 2018: Radiology and Oncology
https://read.qxmd.com/read/30367810/localization-patterns-of-cathepsins-k-and-x-and-their-predictive-value-in-glioblastoma
#12
Barbara Breznik, Clara Limback, Andrej Porcnik, Andrej Blejec, Miha Koprivnikar Krajnc, Roman Bosnjak, Janko Kos, Cornelis J F Van Noorden, Tamara T Lah
Background Glioblastoma is a highly aggressive central nervous system neoplasm characterized by extensive infiltration of malignant cells into brain parenchyma, thus preventing complete tumor eradication. Cysteine cathepsins B, S, L and K are involved in cancer progression and are overexpressed in glioblastoma. We report here for the first time that cathepsin X mRNA and protein are also abundantly present in malignant glioma. Materials and methods Gene expression of cathepsins K and X was analyzed using publically-available tran-scriptomic datasets and correlated with glioma grade and glioblastoma subtype...
October 18, 2018: Radiology and Oncology
https://read.qxmd.com/read/30367809/immune-recist-criteria-and-symptomatic-pseudoprogression-in-non-small-cell-lung-cancer-patients-treated-with-immunotherapy
#13
Martina Vrankar, Mojca Unk
Background Uncommon response during immunotherapy is a new challenging issue in oncology practice. Recently, new criteria for evaluation of response to immunotherapy immune response evaluation criteria in solid tumors (iRECIST) were accepted. According to iRECIST, worsening of performance status (PS) accompanied to pseudoprogression reflects most probably the true progression of the malignant disease. Methods A systematic review of the literature was made by using several electronic database with the following search criteria: symptomatic pseudoprogression, atypical response, immunotherapy and lung cancer...
October 18, 2018: Radiology and Oncology
https://read.qxmd.com/read/30352044/ultrasonographic-changes-in-the-liver-tumors-as-indicators-of-adequate-tumor-coverage-with-electric-field-for-effective-electrochemotherapy
#14
Nina Boc, Ibrahim Edhemovic, Bor Kos, Maja M Music, Erik Brecelj, Blaz Trotovsek, Masa Bosnjak, Mihajlo Djokic, Damijan Miklavcic, Maja Cemazar, Gregor Sersa
Background The aim of the study was to characterize ultrasonographic (US) findings during and after electrochem-otherapy of liver tumors to determine the actual ablation zone and to verify the coverage of the treated tumor with a sufficiently strong electric field for effective electrochemotherapy. Patients and methods US findings from two representative patients that describe immediate and delayed tumor changes after electrochemotherapy of colorectal liver metastases are presented. Results The US findings were interrelated with magnetic resonance imaging (MRI)...
October 18, 2018: Radiology and Oncology
https://read.qxmd.com/read/30265655/thyroid-cancer-detection-rate-and-associated-risk-factors-in-patients-with-thyroid-nodules-classified-as-bethesda-category-iii
#15
Magdalena Mileva, Bojana Stoilovska, Anamarija Jovanovska, Ana Ugrinska, Gordana Petrushevska, Slavica Kostadinova-Kunovska, Daniela Miladinova, Venjamin Majstorov
Background Ultrasound guided fine-needle aspiration (FNA) is a standard procedure for thyroid nodules management and selecting patients for surgical treatment. Atypia of undetermined significance (AUS) or follicular lesion of undetermined significance (FLUS), as stated by The Bethesda System for Reporting Thyroid Cytopathology, is a diagnostic category with an implied malignancy risk of 5-15%. The aim of our study was to review cytology and histopathology reports, as well as clinical and ultrasound data, for thyroid nodules reported as AUS/FLUS, in order to evaluate the malignancy rate and to assess factors associated with malignant outcome...
September 27, 2018: Radiology and Oncology
https://read.qxmd.com/read/30244234/locoregional-disease-control-after-external-beam-radiotherapy-in-91-patients-with-differentiated-thyroid-carcinoma-and-pt4-tumor-stage-a-single-institution-experience
#16
Nikola Besic, Marta Dremelj, Gasper Pilko
Background Locoregional recurrence is common in patients with locally advanced differentiated thyroid carcinoma (DTC). Our aim was to find out the rate of locoregional control of the disease after external beam radiotherapy (EBRT) of the neck and mediastinum in patients with DTC and pT4 tumor. Patients and methods Altogether 91 patients (47 males, 44 females, median age 61 years) with DTC had EBRT of the neck and mediastinum as part of the multimodal treatment of pT4 tumor (63 cases pT4a, 28 cases pT4b) from the year 1973 to 2015...
September 22, 2018: Radiology and Oncology
https://read.qxmd.com/read/30216191/randomised-trial-of-hpv-self-sampling-among-non-attenders-in-the-slovenian-cervical-screening-programme-zora-comparing-three-different-screening-approaches
#17
Urska Ivanus, Tine Jerman, Alenka Repse Fokter, Iztok Takac, Veronika Kloboves Prevodnik, Mateja Marcec, Ursula Salobir Gajsek, Maja Pakiz, Jakob Koren, Simona Hutter Celik, Kristina Gornik Kramberger, Ulrika Klopcic, Rajko Kavalar, Simona Sramek Zatler, Biljana Grcar Kuzmanov, Mojca Florjancic, Natasa Nolde, Srdjan Novakovic, Mario Poljak, Maja Primic Zakelj
Background To overcome obstacles within the Slovenian organised cervical cancer screening programme, a randomised pilot study of human papillomavirus (HPV) self-sampling among non-attenders was performed, aiming to assess three different screening approaches. Participants and methods Non-attenders aged 30-64 years from two Slovenian regions were randomised to two HPV self-sampling groups-the opt-in (I1, n = 14.400) and the opt-out (I2, n = 9.556), with a control group (P, n = 2.600). Self-collected samples were analysed using the Hybrid Capture 2 assay...
September 14, 2018: Radiology and Oncology
https://read.qxmd.com/read/30210049/primary-debulking-surgery-versus-primary-neoadjuvant-chemotherapy-for-high-grade-advanced-stage-ovarian-cancer-comparison-of-survivals
#18
Borut Kobal, Marco Noventa, Branko Cvjeticanin, Matija Barbic, Leon Meglic, Marusa Herzog, Giulia Bordi, Amerigo Vitagliano, Carlo Saccardi, Erik Skof
Background The aim of the study was to analyze the overall survival (OS) and progression free survival (PFS) of patients with high grade and advanced stage epithelial ovarian cancer (EOC) with at least 60 months of follow-up treated in a single gynecologic oncology institute. We compared primary debulking surgery (PDS) versus neoadjuvant chemotherapy plus interval debulking surgery (NACT + IDS) stratifying data based on residual disease with the intent to identify the rationale for therapeutic option decision and the role of laparoscopic evaluation of resectability for that intention...
September 11, 2018: Radiology and Oncology
https://read.qxmd.com/read/30210047/pharmacogenomic-markers-of-glucocorticoid-response-in-the-initial-phase-of-remission-induction-therapy-in-childhood-acute-lymphoblastic-leukemia
#19
Vladimir Gasic, Branka Zukic, Biljana Stankovic, Dragana Janic, Lidija Dokmanovic, Jelena Lazic, Nada Krstovski, Vita Dolzan, Janez Jazbec, Sonja Pavlovic, Nikola Kotur
Background Response to glucocorticoid (GC) monotherapy in the initial phase of remission induction treatment in childhood acute lymphoblastic leukemia (ALL) represents important biomarker of prognosis and outcome. We aimed to study variants in several pharmacogenes (NR3C1, GSTs and ABCB1) that could contribute to improvement of GC response through personalization of GC therapy. Methods Retrospective study enrolling 122 ALL patients was carried out to analyze variants of NR3C1 (rs33389, rs33388 and rs6198), GSTT1 (null genotype), GSTM1 (null genotype), GSTP1 (rs1695 and rs1138272) and ABCB1 (rs1128503, rs2032582 and rs1045642) genes using PCR-based methodology...
September 11, 2018: Radiology and Oncology
https://read.qxmd.com/read/30210043/dynamics-of-ct-visible-pleural-effusion-in-patients-with-pulmonary-infarction
#20
Igor Kocijancic, Jernej Vidmar, Marko Kastelic
Background Pleural effusion remains largely unexplored in patients with pulmonary embolism and concurrent pulmonary infarction. The aim of the study was to investigate the relationship between the size of pulmonary infarction and pleural effusion as well as the time course of pleural effusion in patients with pulmonary infarction. Patients and methods Data from 103 patients with pulmonary infarction was retrospectively analysed along with patient comorbidities, size of pulmonary infarction, presence and size of pleural effusion with the time between the onset of clinical symptoms of pulmonary infarction and CT study...
September 11, 2018: Radiology and Oncology
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