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Yttrium 90

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https://www.readbyqxmd.com/read/29448165/y90-radioembolization-dosimetry-using-a-simple-semi-quantitative-method-in-intrahepatic-cholangiocarcinoma-glass-versus-resin-microspheres
#1
Nariman Nezami, Nima Kokabi, Juan C Camacho, David M Schuster, Minzhi Xing, Hyun S Kim
INTRODUCTION: There are two different types of Y90 Microspheres, glass and resin, in the market for Y90 radioembolization (Y90-RE). This study aimed to investigate the dose of radiation delivered through glass vs. resin-based Y90-RE to intrahepatic cholangiocarcinoma (ICC). METHODS: In this retrospective study, 10 patients with ICC underwent Y90-RE, five underwent glass (Glass group) and other 5 resin (Resin group) microspheres. Technetium-99m macro-aggregated albumin (Tc-99m MAA) shunt study was performed two weeks before Y90-RE...
January 16, 2018: Nuclear Medicine and Biology
https://www.readbyqxmd.com/read/29440463/immune-activation-underlies-a-sustained-clinical-response-to-yttrium-90-radioembolisation-in-hepatocellular-carcinoma
#2
Valerie Chew, Yun Hua Lee, Lu Pan, Nurul J M Nasir, Chun Jye Lim, Camillus Chua, Liyun Lai, Sharifah Nur Hazirah, Tony Kiat Hon Lim, Brian K P Goh, Alexander Chung, Richard H G Lo, David Ng, Rene L F Filarca, Salvatore Albani, Pierce K H Chow
OBJECTIVES: Yttrium-90 (Y90)-radioembolisation (RE) significantly regresses locally advanced hepatocellular carcinoma and delays disease progression. The current study is designed to deeply interrogate the immunological impact of Y90-RE, which elicits a sustained therapeutic response. DESIGN: Time-of-flight mass cytometry and next-generation sequencing (NGS) were used to analyse the immune landscapes of tumour-infiltrating leucocytes (TILs), tumour tissues and peripheral blood mononuclear cells (PBMCs) at different time points before and after Y90-RE...
February 13, 2018: Gut
https://www.readbyqxmd.com/read/29435123/signature-of-survival-a-18-f-fdg-pet-based-whole-liver-radiomic-analysis-predicts-survival-after-90-y-tare-for-hepatocellular-carcinoma
#3
Paul Blanc-Durand, Axel Van Der Gucht, Mario Jreige, Marie Nicod-Lalonde, Marina Silva-Monteiro, John O Prior, Alban Denys, Adrien Depeursinge, Niklaus Schaefer
Purpose: To generate a predictive whole-liver radiomics scoring system for progression-free survival (PFS) and overall survival (OS) in patients undergoing transarterial radioembolization using Yttrium-90 ( 90 Y-TARE) for unresectable hepatocellular carcinoma (uHCC). Results: The generated pPET-RadScores were significantly correlated with survival for PFS (median of 11.4 mo [95% confidence interval CI: 6.3-16.5 mo] in low-risk group [PFS-pPET-RadScore < 0.09] vs...
January 12, 2018: Oncotarget
https://www.readbyqxmd.com/read/29425829/assessment-and-optimization-of-liver-volume-before-major-hepatic-resection-current-guidelines-and-a-narrative-review
#4
REVIEW
Adeel S Khan, Sandra Garcia-Aroz, Mohammad A Ansari, Syed M Atiq, Michael Senter-Zapata, Kathryn Fowler, M B Doyle, W C Chapman
Post hepatectomy liver failure (PHLF) remains a significant cause of morbidity and mortality after major liver resection. Although the etiology of PHLF is multifactorial, an inadequate functional liver remnant (FLR) is felt to be the most important modifiable predictor of PHLF. Pre-operative evaluation of FLR function and volume is of paramount importance before proceeding with any major liver resection. Patients with inadequate or borderline FLR volume must be considered for volume optimization strategies such as portal vein embolization (PVE), two stage hepatectomy with portal vein ligation (PVL), Yttrium-90 radioembolization, and associating liver partition and portal vein ligation for staged hepatectomy (ALPPS)...
February 6, 2018: International Journal of Surgery
https://www.readbyqxmd.com/read/29406240/ibritumomab-tiuxetan-zevalin-and-elevated-serum-human-anti-murine-antibody-hama
#5
Sarbajit Mukherjee, Adanma Ayanambakkam, Sami Ibrahimi, Sarah Schmidt, Jennifer Holter Charkrabarty, Mohamad Khawandanah
Ibritumomab Tiuxetan (Zevalin) is an anti CD-20 murine monoclonal antibody linked to the radio-isotope 90-yttrium (90Y) by the chelator Tiuxetan. It is FDA approved for treatment of relapsed low grade or follicular B-cell Non-Hodgkin's Lymphoma (NHL) or newly diagnosed follicular NHL following an initial response to first-line chemotherapy. Patients may develop Human Anti-Murine Antibodies (HAMA), following exposure to murine antibodies. There is a concern for development of hypersensitivity reactions with Ibritumomab, especially in patients with an elevated HAMA titer...
February 1, 2018: Hematology/oncology and Stem Cell Therapy
https://www.readbyqxmd.com/read/29400769/spectral-optimization-of-phosphor-coated-white-led-for-road-lighting-based-on-the-mesopic-limited-luminous-efficacy-and-ies-color-fidelity-index
#6
Licai Xiao, Chuanwen Zhang, Ping Zhong, Guoxing He
The spectral optimization of phosphor-coated white LED (pc-WLED) with green and orange phosphors excited by blue chip for road lighting was investigated based on the mesopic limited luminous efficacy (LLEm) and IES (the Illuminating Engineering Society of North America) color fidelity index (Rf). The average LLEm of four road lighting standards of the USA and the UK decreases as Rf increases, but the optimal scotopic/photopic ratio increases slightly with Rf increases for a given correlated color temperature (CCT)...
February 1, 2018: Applied Optics
https://www.readbyqxmd.com/read/29398958/treatment-response-evaluation-using-yttrium-90-in-patients-with-rheumatoid-arthritis-of-knee-joint
#7
Jong Min Kim, Wi Song Kim, Yong Pak
For radiosynovectomy, we have measured the retention time of yttrium-90 (90Y) hydroxyapatite (particle size 1-10 μm) within the knee joint space and evaluated the treatment responses in knees with rheumatoid arthritis. Radioactive measurements in the region of knee after injection of 90Y hydroxyapatite into the joint space were made with a single prove system designed to monitor radioactivity and showed retention of 90Y in the knee ranged 76.6% ±5.4% after 4 days of injection. The clinical improvements in rheumatoid arthritis of knee joint with steinbroker Stages I and II were increased as time goes by, the improvement ratio is in 72% at 6th months and 76% at 12th months after injection of 90Y 185 MBq (5 mCi) per joint...
January 2018: World Journal of Nuclear Medicine
https://www.readbyqxmd.com/read/29380003/correction-to-prognostic-factors-in-overall-survival-of-patients-with-unresectable-intrahepatic-cholangiocarcinoma-treated-by-means-of-yttrium-90-radioembolization-results-in-therapy-na%C3%A3-ve-patients
#8
P Reimer, M K Virarkar, M Binnenhei, C Justinger, M R Schön, K Tatsch
The published article has an error in the first name initial of one of the authors. "M. Justinger" should be "C. Justinger" as shown in this erratum.
January 29, 2018: Cardiovascular and Interventional Radiology
https://www.readbyqxmd.com/read/29373246/yttrium-90-radioembolization-of-the-right-inferior-phrenic-artery-in-20-patients-with-hepatocellular-carcinoma
#9
Hyo-Cheol Kim, Yoon Jun Kim, Jin Chul Paeng, Jin Wook Chung
PURPOSE: To address the feasibility of infusion of yttrium-90 (90Y) glass microspheres directly through the right inferior phrenic artery (RIPA). MATERIALS AND METHODS: From November 2015 to May 2017, 20 patients underwent 90Y radioembolization through the RIPA. When the systemic-to-pulmonary shunt was demonstrated on C-arm computed tomography (CT) of the RIPA, prophylactic embolization by polyvinyl alcohol (PVA) particles was performed prior to infusion of 90Y glass microspheres...
January 17, 2018: Journal of Vascular and Interventional Radiology: JVIR
https://www.readbyqxmd.com/read/29361211/bespoke-pretargeted-nano-radioimmunotherapy-for-the-treatment-of-non-hodgkin-lymphoma
#10
Kin Man Au, Ashutosh Tripathy, Carolina Pe-I Lin, Kyle Wagner, Seungpyo Hong, Andrew Z Wang, Steven I Park
Non-Hodgkin lymphoma (NHL) is one of the most common types of hematologic malignancies. Pretargeted radioimmunotherapy (PRIT), the sequential administration of a bispecific antibody-based primary tumor-targeting component followed by a radionucleotide-labeled treatment effector, has been developed to improve the treatment efficacy and to reduce the side effects of conventional RIT. Despite the preclinical success of PRIT, clinical trials revealed that the immunogenicity of the bispecific antibody as well as the presence of competing endogenous effector molecules often compromised the treatment...
January 23, 2018: ACS Nano
https://www.readbyqxmd.com/read/29360142/baseline-iciq-ui-score-body-mass-index-age-average-birth-weight-and-perineometry-duration-as-promising-predictors-of-the-short-term-efficacy-of-er-yag-laser-treatment-in-stress-urinary-incontinent-women-a-prospective-cohort-study
#11
Ivan Fistonić, Nikola Fistonić
BACKGROUND AND OBJECTIVE: A growing body of evidence indicates that a non-invasive erbium yttrium-aluminum-garnet (Er:YAG) laser may be an effective and highly tolerable treatment for stress urinary incontinence (SUI) in women. The primary objective was to identify pre-intervention predictors of short-term Er:YAG outcomes. The secondary objective was to identify patient segments with the best Er:YAG laser treatment short-term outcomes. METHODS: A prospective cohort study performed in 2016 at Ob/Gyn Clinic, Zagreb, Croatia, recruited 85 female patients who suffered from SUI...
January 23, 2018: Lasers in Surgery and Medicine
https://www.readbyqxmd.com/read/29356993/phantom-and-clinical-evaluation-of-the-effect-of-full-monte-carlo-collimator-modelling-in-post-sirt-yttrium-90-bremsstrahlung-spect-imaging
#12
Charlotte A Porter, Kevin M Bradley, Eero T Hippeläinen, Matthew D Walker, Daniel R McGowan
BACKGROUND: Post-therapy SPECT/CT imaging of 90Y microspheres delivered to hepatic malignancies is difficult, owing to the continuous, high-energy Bremsstrahlung spectrum emitted by 90Y. This study aimed to evaluate the utility of a commercially available software package (HybridRecon, Hermes Medical Solutions AB) which incorporates full Monte Carlo collimator modelling. Analysis of image quality was performed on both phantom and clinical images in order to ultimately provide a recommendation of an optimum reconstruction for post-therapy 90Y microsphere SPECT/CT imaging...
January 22, 2018: EJNMMI Research
https://www.readbyqxmd.com/read/29354877/outcomes-of-radioembolization-in-patients-with-chemorefractory-colorectal-cancer-liver-metastasis-a-single-center-experience
#13
Gamze Türk, Gonca Eldem, Saadettin Kılıçkap, Fani Murat Bozkurt, Bilge Volkan Salancı, Barbaros Erhan Çil, Bora Peynircioğlu, Şuayip Yalçın, Ferhun Balkancı
PURPOSE: We aimed to evaluate the efficacy and outcomes of radioembolization with Yttrium-90 (Y-90) microspheres in patients with unresectable and chemorefractory colorectal cancer liver metastasis (CRCLM). METHODS: This single-center study included 43 patients (34 male, 9 female) who underwent radioembolization with Y-90 for unresectable, chemorefractory CRCLM between September 2008 and July 2014. Overall survival (OS), liver progression-free survival (LPFS), overall response rate (ORR), local disease control rate (LDCR), and relations of these parameters with patient disease characteristics were evaluated...
January 22, 2018: Journal of Gastrointestinal Cancer
https://www.readbyqxmd.com/read/29351124/feasibility-assessment-of-yttrium-90-liver-radioembolization-imaging-using-amplitude-based-gated-pet-ct
#14
Dustin R Osborne, Shelley N Acuff, Melissa L Neveu, Mumtaz Syed, Austin D Kaman, Yitong Fu
PURPOSE: The usage of PET/computed tomography (CT) to monitor hepatocellular carcinoma patients following yttrium-90 (Y) radioembolization has increased. Respiratory motion causes liver movement, which can be corrected using gating techniques at the expense of added noise. This work examines the use of amplitude-based gating on Y-PET/CT and its potential impact on diagnostic integrity. PATIENTS AND METHODS: Patients were imaged using PET/CT following Y radioembolization...
January 18, 2018: Nuclear Medicine Communications
https://www.readbyqxmd.com/read/29344714/angiographic-anatomy-and-relevance-of-3-and-9-o-clock-arteries-during-radioembolization
#15
Maciej Powerski, Bartosz Bascik, Jazan Omari, Shahen El-Sanosy, Oliver S Grosser, Max Seidensticker, Frank Fischbach, Maciej Pech
PURPOSE: 3 and 9 o'clock arteries (3&9As) which supply the common hepatic duct connect hepatic with duodenal/pancreatic territories. The study purpose is to describe the angiographic anatomy of 3&9As and discuss their relevance when performing radioembolization (RE) of liver malignancies. MATERIALS AND METHODS: The anatomy of the 3&9As was systematically investigated by a retrospective analysis of angiograms, technetium Tc-99 m-macroaggregated albumin (MAA) scintigrams, yttrium-90 (Y90) Bremsstrahlung-SPECT/CT datasets, and clinical data of 153 patients who underwent RE between 2010 and 2013...
January 17, 2018: Cardiovascular and Interventional Radiology
https://www.readbyqxmd.com/read/29344713/prognostic-factors-in-overall-survival-of-patients-with-unresectable-intrahepatic-cholangiocarcinoma-treated-by-means-of-yttrium-90-radioembolization-results-in-therapy-na%C3%A3-ve-patients
#16
P Reimer, M K Virarkar, M Binnenhei, M Justinger, M R Schön, K Tatsch
INTRODUCTION: To investigate prognostic factors in unresectable intrahepatic cholangiocarcinoma (ICC) therapy-naïve patients after yttrium-90 (Y-90) radioembolization (RE) therapy. MATERIALS AND METHODS: Between 2005 and 2016, 21 patients with ICC were treated with Y-90 RE only and their survival data were analyzed. Patients were stratified and response was assessed by the Response Evaluation Criteria in Solid Tumors (RECIST) criteria. RESULT: The overall median survival was 15 months...
January 17, 2018: Cardiovascular and Interventional Radiology
https://www.readbyqxmd.com/read/29333464/comparison-of-tof-pet-and-bremsstrahlung-spect-images-of-yttrium-90-a-monte-carlo-simulation-study
#17
Akihiko Takahashi, Kazuhiko Himuro, Shingo Baba, Yasuo Yamashita, Masayuki Sasaki
Objectives: Yttrium-90 (90Y) is a beta particle nuclide used in targeted radionuclide therapy which is available to both single-photon emission computed tomography (SPECT) and time-of-flight (TOF) positron emission tomography (PET) imaging. The purpose of this study was to assess the image quality of PET and Bremsstrahlung SPECT by simulating PET and SPECT images of 90Y using Monte Carlo simulation codes under the same conditions and to compare them. Methods: In-house Monte Carlo codes, MCEP-PET and MCEP-SPECT, were employed to simulate images...
2018: Asia Oceania Journal of Nuclear Medicine & Biology
https://www.readbyqxmd.com/read/29331342/development-of-a-prognostic-score-to-predict-response-to-yttrium-90-radioembolization-for-hepatocellular-carcinoma-with-portal-vein-invasion
#18
Carlo Spreafico, Carlo Sposito, Marta Vaiani, Tommaso Cascella, Sherrie Bhoori, Carlo Morosi, Rodolfo Lanocita, Raffaele Romito, Carlo Chiesa, Marco Maccauro, Alfonso Marchianò, Vincenzo Mazzaferro
BACKGROUND & AIMS: Yttrium-90 transarterial radioembolization (TARE) has shown promising efficacy in the treatment of patients with hepatocellular carcinoma (HCC), associated with portal vein tumor thrombus (PVTT). The aim of this study is to identify prognostic factors for survival in patients with HCC and PVTT undergoing TARE, and build a prognostic classification for these patients. METHODS: This is a single center retrospective study conducted over six years (2010-2015), on consecutive patients undergoing TARE...
January 10, 2018: Journal of Hepatology
https://www.readbyqxmd.com/read/29329568/prospective-longitudinal-quality-of-life-and-survival-outcomes-in-patients-with-advanced-infiltrative-hepatocellular-carcinoma-and-portal-vein-thrombosis-treated-with-yttrium-90-radioembolization
#19
Minzhi Xing, Nima Kokabi, Juan C Camacho, Hyun S Kim
BACKGROUND: To determine the effect of Yttrium-90 (Y90) radioembolization on health-related quality of life (HRQOL) and its effect on overall survival advanced, unresectable infiltrative hepatocellular carcinoma (HCC) patients with concurrent portal vein thrombosis (PVT). METHODS: Consecutive patients with unresectable infiltrative HCC and PVT were recruited. The Short-Form 36 (SF-36) questionnaire was used to assess HRQOL for consecutive patients treated with glass-based Y90 based on a prospective phase II trial...
January 12, 2018: BMC Cancer
https://www.readbyqxmd.com/read/29306542/prospective-study-to-determine-early-hypertrophy-of-the-contra-lateral-liver-lobe-after-unilobar-yttrium-90-selective-internal-radiation-therapy-in-patients-with-hepatocellular-carcinoma
#20
Jin Yao Teo, John Carson Allen, David Chee Eng Ng, Julianah Bee Abdul Latiff, Su Pin Choo, David Wai-Meng Tai, Albert Su Chong Low, Foong Koon Cheah, Jason Pik Eu Chang, Juinn Huar Kam, Victor T W Lee, Alexander Yaw Fui Chung, Chung Yip Chan, Pierce Kah Hoe Chow, Brian K P Goh
BACKGROUND: Liver resection is a major curative option in patients presenting with hepatocellular carcinoma. An inadequate functional liver remnant is a major limiting factor precluding liver resection. In recent years, hypertrophy of the functional liver remnant after selective internal radiation therapy hypertrophy has been observed, but the degree of hypertrophy in the early postselective internal radiation therapy period has not been well studied. METHODS: We conducted a prospective study on patients undergoing unilobar, Yttrium-90 selective internal radiation therapy for hepatocellular carcinoma to evaluate early hypertrophy at 4-6 weeks and 8-12 weeks after selective internal radiation therapy...
January 3, 2018: Surgery
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