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https://www.readbyqxmd.com/read/29221286/automatic-lung-rads%C3%A2-classification-with-a-natural-language-processing-system
#1
Sebastian E Beyer, Brady J McKee, Shawn M Regis, Andrea B McKee, Sebastian Flacke, Gilan El Saadawi, Christoph Wald
Background: Our aim was to train a natural language processing (NLP) algorithm to capture imaging characteristics of lung nodules reported in a structured CT report and suggest the applicable Lung-RADS™ (LR) category. Methods: Our study included structured, clinical reports of consecutive CT lung screening (CTLS) exams performed from 08/2014 to 08/2015 at an ACR accredited Lung Cancer Screening Center. All patients screened were at high-risk for lung cancer according to the NCCN Guidelines®...
September 2017: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/29218257/pulmonary-tuberculosis-versus-recurrent-chemotherapy-induced-pneumonitis-a-clinical-dilemma
#2
Gulrayz Ahmed, Muhammad W Saif
Chemotherapy-induced lung toxicity can affect pulmonary parenchyma, pleura, airways, pulmonary vascular system, mediastinum or the neuromuscular system that is responsible for respiration. Chemotherapy-induced pulmonary toxicity is a diagnosis of exclusion. When the patients with malignancies develop pulmonary toxicity such as pneumonitis and distinguishing it from alternative diseases such as infectious, thrombotic, cardiac, malignant or exacerbation of chronic lung conditions can be difficult. Moreover, such patients are often immunosuppressed, physically stressed from the underlying disease and the cancer treatment and hence, more susceptible to usual and unusual or opportunistic infections...
October 4, 2017: Curēus
https://www.readbyqxmd.com/read/29200968/volatile-organic-metabolites-identify-patients-with-gastric-carcinoma-gastric-ulcer-or-gastritis-and-control-patients
#3
Hongshuang Tong, Yue Wang, Yue Li, Shujuan Liu, Chunjie Chi, Desheng Liu, Lei Guo, Enyou Li, Changsong Wang
Background: Gastric cancer ranks 4th among the most common cancers worldwide, and the mortality caused by gastric cancer is 2nd only to lung cancer. Gastric cancer shows a lack of specific symptoms in its early stages. In addition, its clinical symptoms often do not match the corresponding stage. Upper gastrointestinal endoscopy with biopsy is the gold standard for the diagnosis of gastric cancer because of its high accuracy. However, this operation is invasive, patient compliance is poor, and high demands for medical staff and equipment are typical of this procedure...
2017: Cancer Cell International
https://www.readbyqxmd.com/read/29199667/mediastinal-staging-for-non-small-cell-lung-cancer-revisited-it-is-being-done-under-aegis-of-icon-and-lung-cancer-consortium-asia
#4
REVIEW
D Pandey, P Ramanathan, R Pandey, K Prabhash
Mediastinal staging is a crucial factor in the decision making in patients with non-metastatic non-small cell lung cancer (NSCLC). Mediastinoscopy has historically been the gold standard for this purpose. With the advent of PET-CT, the role of an invasive staging modality like mediastinoscopy has been diminishing. Newer developments in endoscopic staging like EBUS and EUS-FNA have also provided means to get a cytological diagnosis of enlarged lymph nodes. With the meta-analyses showing encouraging results of neoadjuvant chemotherapy in operable lung cancers including the early stage disease, the sanctity of invasive mediastinal staging for the sole purpose for selecting patients for upfront surgery is debatable...
January 2017: Indian Journal of Cancer
https://www.readbyqxmd.com/read/29175263/missing-data-and-chance-variation-in-public-reporting-of-cancer-stage-at-diagnosis-cross-sectional-analysis-of-population-based-data-in-england
#5
Matthew E Barclay, Georgios Lyratzopoulos, David C Greenberg, Gary A Abel
BACKGROUND: The percentage of cancer patients diagnosed at an early stage is reported publicly for geographically-defined populations corresponding to healthcare commissioning organisations in England, and linked to pay-for-performance targets. Given that stage is incompletely recorded, we investigated the extent to which this indicator reflects underlying organisational differences rather than differences in stage completeness and chance variation. METHODS: We used population-based data on patients diagnosed with one of ten cancer sites in 2013 (bladder, breast, colorectal, endometrial, lung, ovarian, prostate, renal, NHL, and melanoma)...
November 23, 2017: Cancer Epidemiology
https://www.readbyqxmd.com/read/29159957/evaluating-performance-of-a-user-trained-mr-lung-tumor-autocontouring-algorithm-in-the-context-of-intra-and-inter-observer-variations
#6
Eugene Yip, Jihyun Yun, Zsolt Gabos, Sarah Baker, Don Yee, Keith Wachowicz, Satyapal Rathee, B Gino Fallone
PURPOSE: Real-time tracking of lung tumors using magnetic resonance imaging (MRI) has been proposed as a potential strategy to mitigate the ill-effects of breathing motion in radiation therapy. Several autocontouring methods have been evaluated against a "gold standard" of a single human expert user. However, contours drawn by experts have inherent intra- and inter-observer variations. In this study, we aim to evaluate our user-trained autocontouring algorithm with manually drawn contours from multiple expert users, and to contextualize the accuracy of these autocontours within intra- and inter- observer variations...
November 21, 2017: Medical Physics
https://www.readbyqxmd.com/read/29154002/forensic-evaluation-of-str-typing-reliability-in-lung-cancer
#7
Peng Zhang, Ying Zhu, Yongguo Li, Shisheng Zhu, Ruoxiang Ma, Minzhu Zhao, Jianbo Li
Short tandem repeats (STR) analysis is the gold standard method in the forensics field for personal identification and paternity testing. In cancerous tissues, STR markers are gaining attention, with some studies showing increased instability. Lung cancer, which is one of the most commonmalignancies, has become the most lethal among all cancers. In certain situations, lung cancer tissues may be the only resource available for forensic analysis. Therefore, evaluating the reliability of STR markers in lung cancer tissues is required to avoid false exclusions...
November 11, 2017: Legal Medicine
https://www.readbyqxmd.com/read/29135778/accuracy-of-medicare-claim-based-algorithm-to-detect-breast-prostate-or-lung-cancer-bone-metastases
#8
Nalini Sathiakumar, Elizabeth Delzell, Huifeng Yun, Rene Jooste, Kelly Godby, Carla Falkson, Mellissa Yong, Meredith L Kilgore
BACKGROUND: We had previously developed an algorithm for Medicare claims data to detect bone metastases associated with breast, prostate, or lung cancer. This study was conducted to examine whether this algorithm accurately documents bone metastases on the basis of diagnosis codes in Medicare claims data. METHODS: We obtained data from Medicare claims and electronic medical records of patients 65 years or older with a breast, prostate, or lung cancer diagnosis at a teaching hospital and/or affiliated clinics during 2005 or 2006...
December 2017: Medical Care
https://www.readbyqxmd.com/read/29135771/detecting-lung-and-colorectal-cancer-recurrence-using-structured-clinical-administrative-data-to-enable-outcomes-research-and-population-health-management
#9
Michael J Hassett, Hajime Uno, Angel M Cronin, Nikki M Carroll, Mark C Hornbrook, Debra Ritzwoller
INTRODUCTION: Recurrent cancer is common, costly, and lethal, yet we know little about it in community-based populations. Electronic health records and tumor registries contain vast amounts of data regarding community-based patients, but usually lack recurrence status. Existing algorithms that use structured data to detect recurrence have limitations. METHODS: We developed algorithms to detect the presence and timing of recurrence after definitive therapy for stages I-III lung and colorectal cancer using 2 data sources that contain a widely available type of structured data (claims or electronic health record encounters) linked to gold-standard recurrence status: Medicare claims linked to the Cancer Care Outcomes Research and Surveillance study, and the Cancer Research Network Virtual Data Warehouse linked to registry data...
December 2017: Medical Care
https://www.readbyqxmd.com/read/29078696/vats-segmentectomy-an-underused-option
#10
REVIEW
Paolo Mendogni, Davide Tosi, Lorenzo Rosso, Alessandro Palleschi, Margherita Cattaneo, Alessandra Mazzucco, Mario Nosotti
It is well known that the "gold standard" procedure for surgically resectable early-stage non-small cell lung cancer (NSCLC), is pulmonary lobectomy. Even though sublobar resections (SLR), particularly segmentectomy, seem attractive as an alternative to lobectomy in early stage lung cancers, they are still debated procedures. The aim of this study is to answer to the question: "Is VATS lung segmentectomy an underused option?" To obtain an answer to this query, the authors carried out a review of the "state of the art" as follows: (I) performing a non-systematic review of the literature; (II) analyzing the review articles published; (III) looking at the ongoing studies, the results of which have not yet published; (IV) scanning the technical aspect of lung segmentectomy...
2017: Journal of Visualized Surgery
https://www.readbyqxmd.com/read/29078692/robotic-lobectomy
#11
Paul Linsky, Benjamin Wei
Lobectomy is still currently the gold standard for treatment of lung cancer. With the great advancement of robotic surgery, robotic lobectomy has been demonstrated to be an operation that is safe and can be done in a timely manner, similar to video-assisted thoracoscopic surgery (VATS). Additionally, reports show that long-term oncologic outcomes for robotic lobectomy are consistent with those reported for VATS and open lobectomy. Patients are selected in the same manner as those for VATS. Improved optics, increased dexterity of the instruments, and better ergonomics can yield subjective advantages to the surgeon...
2017: Journal of Visualized Surgery
https://www.readbyqxmd.com/read/29069959/the-liquid-biopsy-a-tool-for-a-combined-diagnostic-and-theranostic-approach-for-care-of-a-patient-with-late-stage-lung-carcinoma-presenting-with-bilateral-ocular-metastases
#12
Linda Bouhlel, Véronique Hofman, Célia Maschi, Marius Ilié, Maryline Allégra, Charles-Hugo Marquette, Clarisse Audigier-Valette, Juliette Thariat, Paul Hofman
Liquid biopsies (LB) are used routinely in clinical practice in two situations for late stage non-small-cell lung cancer (NSCLC) patients, (i) at the initial diagnosis when looking for activating mutations in EGFR in the absence of analyzable tissue DNA and, (ii) during tumor progression on a tyrosine kinase inhibitor treatment to look for the resistance mutation T790M in EGFR. LB is not presently recommended in daily practice for the diagnosis of NSCLC. Areas covered: We report the diagnosis of a NSCLC in a patient with bilateral ocular metastases after detection of a deletion in exon 19 of EGFR when using plasma DNA...
December 2017: Expert Review of Anticancer Therapy
https://www.readbyqxmd.com/read/29066885/asymmetric-dumbbell-shaped-silver-nanoparticles-and-spherical-gold-nanoparticles-green-synthesized-by-mangosteen-garcinia-mangostana-pericarp-waste-extracts
#13
Ji Su Park, Eun-Young Ahn, Youmie Park
Mangosteen (Garcinia mangostana) pericarp waste extract was used to synthesize gold and silver nanoparticles by a green strategy. The extract was both a reducing and stabilizing agent during synthesis. Phytochemical screening of the extract was conducted to obtain information regarding the presence/absence of primary and secondary metabolites in the extract. The in vitro antioxidant activity results demonstrated that the extract had excellent antioxidant activity, which was comparable to a standard (butylated hydroxy toluene)...
2017: International Journal of Nanomedicine
https://www.readbyqxmd.com/read/29060925/breath-based-volatile-organic-compounds-in-the-detection-of-breast-lung-and-colorectal-cancers-a-systematic-review
#14
Ingrid Oakley-Girvan, Sharon Watkins Davis
BACKGROUND: Detecting volatile organic compounds (VOCs) could provide a rapid, noninvasive, and inexpensive screening tool for detecting cancer. OBJECTIVE: In this systematic review, we identified specific exhaled breath VOCs correlated with lung, colorectal, and breast cancer. METHODS: We identified relevant studies published in 2015 and 2016 by searching Pubmed and Web of Science. The protocol for this systematic review was registered in PROSPERO and the PRISMA guidelines were used in reporting...
October 8, 2017: Cancer Biomarkers: Section A of Disease Markers
https://www.readbyqxmd.com/read/29057239/circulating-dna-in-egfr-mutated-lung-cancer
#15
REVIEW
Aditi P Singh, Shenduo Li, Haiying Cheng
Circulating tumor DNA (ctDNA) consists of short double stranded DNA fragments that are released by tumors including non-small cell lung cancer (NSCLC). With the identification of driver mutations in the epidermal growth factor receptor (EGFR) gene and development of targeted tyrosine kinase inhibitors (TKIs), the clinical outcome of NSCLC patients in this subgroup has improved tremendously. The gold standard to assess EGFR mutation is through tissue biopsy, which can be limited by difficulty in accessing the tumor, inability of patients to tolerate invasive procedures, insufficient sample for molecular testing and inability to capture intratumoral heterogeneity...
September 2017: Annals of Translational Medicine
https://www.readbyqxmd.com/read/29049856/is-left-upper-lobectomy-always-worthwhile-for-early-stage-lung-cancer-a-comparison-between-left-upper-lobectomy-trisegmentectomy-and-lingulectomy
#16
Vittorio Aprile, Pietro Bertoglio, Paolo Dini, Gerardo Palmiero, Alfredo Mussi, Marcello Carlo Ambrogi, Marco Lucchi
BACKGROUND AND OBJECTIVES: Lobectomy is the gold standard treatment for resectable Non-Small Cell Lung Cancer (NSCLC). We compared oncological outcomes of patients undergoing a "multi-segmentectomy" (trisegmentectomy or lingulectomy) and left upper lobectomy for early stage (T1-2, N0) NSCLC of the left upper lobe. METHODS: We retrospectively analyzed all patients with pathological early stage (T1-T2 N0) NSCLC located in left upper lobe who underwent a lobectomy, a trisegmentectomy, or a lingulectomy between 2006 and 2013, focusing on surgical and oncological outcomes...
October 19, 2017: Journal of Surgical Oncology
https://www.readbyqxmd.com/read/29049175/retrospective-analysis-for-the-false-positive-diagnosis-of-pet-ct-scan-in-lung-cancer-patients
#17
Mingxia Feng, Xuemei Yang, Qiang Ma, Yong He
Early diagnosis is pivotal for prognosis of lung cancer patients. Positron emission tomography/computed tomography (PET-CT) is a useful method for human cancer diagnosis. In this study, we aimed to explore the false positive diagnosis of PET-CT in lung cancerIn total, 754 patients diagnosed with lung cancer via PET-CT were retrospectively collected in this study. Histopathological detection served as gold standard. The diagnostic accuracy of PET-CT was defined as the proportion of lung cancer cases confirmed by pathological diagnosis in the study subjects, and the percentages of misdiagnosed cases represented the false positive diagnosis of PET-CT...
October 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28950319/igg4-related-disease-of-the-lung-a-rare-differential-diagnosis-to-lung-cancer-after-positive-positron-emission-tomography-and-biopsy
#18
Adrian Zehnder, Gregor J Kocher, Michael Seitz, Ralph A Schmid
Immunoglobulin G4-related disease is a rare immune-mediated condition that often causes serious diagnostic problems. Symptoms are unspecific, and several organs can be involved. To date, IgG4-related lung disease has seldom been reported in literature. Nevertheless, a variety of pulmonary involvement has been described, which can mimic malignancy. The gold standard for the diagnosis is the identification of typical histopathological features, even if diagnostic biomarker such as serum IgG4 concentration can be an indicator for a more aggressive course of the disease...
November 1, 2017: European Journal of Cardio-thoracic Surgery
https://www.readbyqxmd.com/read/28922334/common-malignant-brain-tumors-can-18f-fdg-pet-ct-aid-in-differentiation
#19
Nilendu C Purandare, Ameya Puranik, Sneha Shah, Archi Agrawal, Tejpal Gupta, Aliasgar Moiyadi, Prakash Shetty, Epari Shridhar, Rakesh Jalali, Venkatesh Rangarajan
OBJECTIVES: The objectives of this study were to evalute the metabolic characteristics of common malignant space-occupying lesions (SOL) of the brain and to determine the utility of fluorine-18-fluorodeoxyglucose (F-FDG) PET/CT in differentiating between the common types of malignant brain SOL. PATIENTS AND METHODS: All patients with brain SOL who were referred for an F-FDG PET/CT scan by a multidisciplinary team were included in this retrospective study. The metabolic characteristics of the brain lesions in the form of maximum standardized uptake value (SUVmax) along with tumor-to-background activity ratios were determined and differences were compared using nonparametric statistical tests...
December 2017: Nuclear Medicine Communications
https://www.readbyqxmd.com/read/28898423/iterative-volume-of-interest-based-4d-cone-beam-ct
#20
Rachael Martin, Moiz Ahmad, Geoffrey Hugo, Tinsu Pan
PURPOSE: 4D cone-beam CT (CBCT) has potential applications in soft tissue alignment and tumor motion verification at the time of radiation treatment. However, prominent streak artifacts with conventional image reconstructions have limited its clinical use and alternative reconstructions are generally too computationally expensive for the time available. We propose an iterative volume of interest based (I4D VOI) reconstruction technique, where 4D reconstruction is only performed within a VOI, to limit streak artifacts with limited added computation time...
September 12, 2017: Medical Physics
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