Comparative evaluation of respiratory-gated and ungated FDG-PET for target volume definition in radiotherapy treatment planning for pancreatic cancer.

CONCLUSION: The ITV generated from 4D-PET can be used to improve the accuracy or reduce normal tissue irradiation compared with conventional un-gated PET-based ITV. PMID: 27492203 [PubMed - as supplied by publisher]
Source: Radiotherapy and Oncology : journal of the European Society for Therapeutic Radiology and Oncology - Category: Radiology Authors: Tags: Radiother Oncol Source Type: research

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Cancer survival rates for esophagus, stomach, colon, rectum, pancreas, lung,...Read more on AuntMinnie.comRelated Reading: AI predicts lung cancer survival from CT scan data Lancet: Cancer survival rates improve but vary widely Cancer deaths continue to fall, but CT lung screening lags ACS: U.S. cancer death rates continue to fall NEJM: Treatment, not screening, cuts breast cancer deaths
Source: AuntMinnie.com Headlines - Category: Radiology Source Type: news
The intense accumulation of prostate-specific membrane antigen (PSMA) radioligands in salivary glands is still not well understood. It is of concern for therapeutic applications of PSMA radioligands, because therapeutic radiation will damage these glands. A better understanding of the uptake mechanism is, therefore, crucial to find solutions to reduce toxicity. The aim of this study was to investigate whether the accumulation of PSMA-targeting radioligands in submandibular glands (SMGs) can be explained with PSMA expression levels using autoradiography (ARG) and immunohistochemistry (IHC). Methods: All patients gave writte...
Source: Journal of Nuclear Medicine - Category: Nuclear Medicine Authors: Tags: Clinical Source Type: research
CONCLUSION: Simplified optimization solutions implemented in the MR-Linac TPS allows to elaborate in most of cases treatment plans dosimetrically comparable with those obtained by using an advanced optimizer. A superior treatment plan quality is possible using the VMAT technique that could represent a breakthrough for the MRgART if the modern advancements will lead to shorter optimization times. PMID: 31444952 [PubMed - as supplied by publisher]
Source: Journal of Applied Clinical Medical Physics - Category: Physics Authors: Tags: J Appl Clin Med Phys Source Type: research
Objectives 18F-Fluorodeoxyglucose positron emission tomography (FDG-PET) has been an important modality for detecting malignancies. Recently, an increasing number of studies reported the utility of FDG-PET parameters in predicting clinical outcomes and treatment assessment in variety of cancers. We aimed at clarifying both the prognostic role and assessment value of FDG-PET in pancreatic carcinoma. Methods We systematically searched electronic databases of PubMed, Embase, Cochrane Library, and Web of Science to identify relevant studies to conduct this meta-analysis. Comparative analyses of the pooled hazard ratio (HR...
Source: Pancreas - Category: Gastroenterology Tags: Original Articles Source Type: research
Authors: Abdellatif AAH Abstract Numerous normal and tumors cells are well-known to express the somatostatin receptors (SSTRs) on their surface which make the receptor be useful for tumor scintigraphy. Thus, identification of SSTRs is beneficial, especially SSTR2. The somatostatin analogue, Octreotide (OCT) was chosen as a ligand, as it is known to selectively bind to SSTR2. Moreover, polyethylene glycol (PEG), 8armPEG was used as a branched PEG to provide a low non-specific cell binding and easily chemical modification. OCT, and fluorescein (Flu) were conjugated to branched PEG using a water-soluble carbodiimide (...
Source: Drug Development and Industrial Pharmacy - Category: Drugs & Pharmacology Tags: Drug Dev Ind Pharm Source Type: research
Conditions:   Cancer of Pancreas;   Ossification, Heterotopic Interventions:   Diagnostic Test: Bone alkaline phosphatase;   Radiation: Abdominal CT scan Sponsor:   Nanjing Medical University Not yet recruiting
Source: ClinicalTrials.gov - Category: Research Source Type: clinical trials
Doctors have gotten much better at detecting and treating breast cancer early. Drug and chemotherapy regimens to control tumors have gotten so effective, in fact, that in some cases, surgery is no longer necessary. In up to 30% of cases of early-stage breast cancer treated before surgery, doctors can’t find evidence of cancer cells in postoperative biopsies. The problem, however, is that there is currently no reliable way to tell which cancers have been pushed into remission and which ones have not. That’s where an easy identifier, like a blood test, could transform the way early stage breast cancer is treated....
Source: TIME: Health - Category: Consumer Health News Authors: Tags: Uncategorized blood tests Breast Cancer Source Type: news
CONCLUSION: In individuals with metastatic PDAC who have mutations involved in DNA repair, Olaparib may provide clinical benefit. BRCA mutations affecting RAD51 binding domains translated to improved median OS. QTA of individual tumors may allow for additional information that predicts outcomes to treatment with PARP inhibitors. IMPLICATIONS FOR PRACTICE: Pursuing germline and somatic DNA sequencing in individuals with pancreatic ductal adenocarcinoma may yield abnormalities in DNA repair pathways. These individuals may receive benefit with poly (ADP-ribose) polymerase (PARP) inhibition. Radiomics and deep sequencing ...
Source: The Oncologist - Category: Cancer & Oncology Authors: Tags: Oncologist Source Type: research
Risk stratification (characterization) of tumors from radiology images can be more accurate and faster with computer-aided diagnosis (CAD) tools. Tumor characterization through such tools can also enable non-invasive cancer staging, prognosis, and foster personalized treatment planning as a part of precision medicine. In this papet, we propose both supervised and unsupervised machine learning strategies to improve tumor characterization. Our first approach is based on supervised learning for which we demonstrate significant gains with deep learning algorithms, particularly by utilizing a 3D convolutional neural network and...
Source: IEE Transactions on Medical Imaging - Category: Biomedical Engineering Source Type: research
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