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https://www.readbyqxmd.com/read/29350321/sliding-to-predict-vision-based-beating-heart-motion-estimation-by-modeling-temporal-interactions
#1
Angelica I Aviles-Rivero, Samar M Alsaleh, Alicia Casals
PURPOSE: Technical advancements have been part of modern medical solutions as they promote better surgical alternatives that serve to the benefit of patients. Particularly with cardiovascular surgeries, robotic surgical systems enable surgeons to perform delicate procedures on a beating heart, avoiding the complications of cardiac arrest. This advantage comes with the price of having to deal with a dynamic target which presents technical challenges for the surgical system. In this work, we propose a solution for cardiac motion estimation...
January 19, 2018: International Journal of Computer Assisted Radiology and Surgery
https://www.readbyqxmd.com/read/29331648/lung-ultrasound-to-detect-residual-pneumothorax-after-chest-drain-removal-in-lung-resections
#2
Miriam Patella, Andrea Saporito, Carla Puligheddu, Francesco Mongelli, Davide La Regina, Ramon Pini, Rolf Inderbitzi, Stefano Cafarotti
BACKGROUND: Indication for post-drain removal imaging after lung resection is debated. Chest x-ray (CXR) is widely used to confirm lung expansion but not evidence-based. We propose to introduce lung ultrasound (LUS) as alternative to exclude significant pneumothorax (PTx) in this setting. METHODS: Fifty patients undergoing lung resections were enrolled. Inclusion criteria were: complete expansion of the lung at post-operative CXR, pleural effusion <300ml/24h, air leak 10-20ml/min for 6 hours...
January 10, 2018: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/29323066/familiar-trespassers-in-histopathology-an-obstacle-in-diagnosis-a-single-blind-study
#3
P Shashikala, G M Sreevidyalatha, Sonam S Nandyal, Gowda Kavita Umapathy
BACKGROUND: Histopathologists encounter strange structures in tissue sections that appear unrelated to tissues, and these artifacts may be misinterpreted and misdiagnosed as pathological lesions. These substances may either be present within the tissues or can get implanted into tissue during biopsy procedure or laboratory handling or processing. AIMS: The aim of this study is to observe the microscopic appearance of different abnormal structures like commonly implanted food particles or easily incorporated substances during tissue processing with their probable histological misdiagnosis...
October 2017: Indian Journal of Pathology & Microbiology
https://www.readbyqxmd.com/read/29319039/anaplastic-large-cell-lymphoma-presenting-as-bilateral-endobronchial-tumor-in-a-young-boy
#4
Abhijeet Dharmaji Sawant, Vijayraj S Patil, Pranjal M Gugalia, Rajiv Kumar, Sabita Jiwnani, George Karimundackal, C S Pramesh
A 15-year-old boy presented to us with a 4-month history of fever with worsening dyspnea since 1 month. His contrast-enhanced computed tomography scan of the thorax showed bilateral endobronchial lesions with complete collapse-consolidation of the left lung and partial collapse of the right lower lobe. His fiberoptic bronchoscopy guided biopsy had been reported in outside hospital as a neuroendocrine tumor. Due to worsening breathlessness, he had to be intubated. We repeated the endobronchial biopsy and combined with outside slides and blocks, was diagnosed to have an anaplastic lymphoma kinase-1 positive anaplastic large cell lymphoma (ALCL)...
January 2018: Lung India: Official Organ of Indian Chest Society
https://www.readbyqxmd.com/read/29315130/ultrasound-identification-of-diaphragm-by-novices-using-abcde-technique
#5
Jaasmit Khurana, Stephanie C Gartner, Latha Naik, Ban C H Tsui
BACKGROUND AND OBJECTIVES: In this study, we examined the consistency, rapidity, and reproducibility of the ABCDE technique for diaphragm identification. Operators using this method place the probe at the Anterior axillary line, watch for Breathing (lung sliding), and then move the probe Caudally to identify the Diaphragm for Examination. METHODS: A convenience sample of 100 patients was recruited from the preadmission clinic. Two novice operators each scanned the diaphragm using a linear ultrasound transducer in B-mode...
January 9, 2018: Regional Anesthesia and Pain Medicine
https://www.readbyqxmd.com/read/29314741/a-bench-study-of-inhaled-nitric-oxide-delivery-during-high-frequency-percussive-ventilation
#6
Richard D Branson, Jeff Griebel, Dario Rodriquez
BACKGROUND: Safe and effective delivery of inhaled nitric oxide (INO) requires the appropriate interface of ventilator and INO delivery device. METHODS: We compared INO delivery using four configurations with the Transport Sinusoidal Bronchotron® and INOmax DSIR Plus® in a lung model. Ventilator settings and lung model values were held constant. Delivered NO, NO2 , and inspired oxygen (FIO2 ) were measured. The mean difference between set and measured NO was calculated and compared using ANOVA...
January 4, 2018: Pediatric Pulmonology
https://www.readbyqxmd.com/read/29279323/the-hidden-genomic-and-transcriptomic-plasticity-of-giant-marker-chromosomes-in-cancer
#7
Gemma Macchia, Marco Severgnini, Stefania Purgato, Doron Tolomeo, Hilen Casciaro, Ingrid Cifola, Alberto L'Abbate, Anna Loverro, Orazio Palumbo, Massimo Carella, Laurence Bianchini, Giovanni Perini, Gianluca De Bellis, Fredrik Mertens, Mariano Rocchi, Clelia T Storlazzi
Genome amplification in the form of rings or giant rod-shaped marker chromosomes is a common genetic alteration in soft tissue tumours. The mitotic stability of these structures is often rescued by perfectly functioning analphoid neocentromeres, which therefore significantly contribute to cancer progression. Here, we disentangled the genomic architecture of many neocentromeres stabilizing marker chromosomes in well-differentiated liposarcoma and lung sarcomatoid carcinoma samples. In cells carrying heavily rearranged RGMs, these structures were assembled as patchworks of multiple short amplified sequences, disclosing an extremely high level of complexity and definitely ruling out the existence of regions prone to the neocentromere seeding...
December 26, 2017: Genetics
https://www.readbyqxmd.com/read/29251777/an-adaptive-motion-regularization-technique-to-support-sliding-motion-in-deformable-image-registration
#8
Yabo Fu, Shi Liu, H Harold Li, Hua Li, Deshan Yang
PURPOSE: Isotropic smoothing has been conventionally used to regularize deformation vector fields (DVFs) in deformable image registration (DIR). However, the isotropic smoothing method enforces global smoothness and therefore cannot accurately model the complex tissue deformation, such as sliding motion at organ boundaries. To accurately model and estimate sliding tissue motion, an adaptive direction-dependent DVF regularization technique was developed in this study. METHODS: A DVF is computed and updated iteratively by minimizing the intensity differences between the images...
December 18, 2017: Medical Physics
https://www.readbyqxmd.com/read/29244902/feasibility-of-predicting-tumor-motion-using-online-data-acquired-during-treatment-and-a-generalized-neural-network-optimized-with-offline-patient-tumor-trajectories
#9
Troy Teo, Syed Bilal Ahmed, Nadia Alayoubi, Neil Bruce, Ethan Lyn, Stephen Pistorius
PURPOSE: The accurate prediction of intra-fraction lung tumor motion is required to compensate for system latency in image-guided adaptive radiotherapy systems. The goal of this study was to identify an optimal prediction model that has a short learning period so that prediction and adaptation can commence soon after treatment begins, and requires minimal re-optimization for individual patients. Specifically, the feasibility of predicting tumor position using a combination of a generalized (i...
December 15, 2017: Medical Physics
https://www.readbyqxmd.com/read/29228529/efficacy-of-bronchial-washing-and-brushing-cytology-in-the-diagnosis-of-non-neoplastic-lung-diseases
#10
Rahil Giti, Massood Hosseinzadeh
Flexible fiberoptic bronchoscopy is often the initial technique for diagnosis of lung and bronchial tumors. Many studies have shown the high accuracy rate of bronchial washing and brushing cytology in the evaluation of neoplastic and non-neoplastic bronchopulmonary lesions. The aim of this study is to emphasize the value of the bronchial cytologic findings for diagnosis of non-neoplastic bronchopulmonary lesions. In a cross-sectional study, we retrieved all cases with bronchial washing and brushing cytology from 21 Mach 2014 to 21 December 2015...
October 2017: Acta Medica Iranica
https://www.readbyqxmd.com/read/29225433/supervoxels-for-graph-cuts-based-deformable-image-registration-using-guided-image-filtering
#11
Adam Szmul, Bartłomiej W Papież, Andre Hallack, Vicente Grau, Julia A Schnabel
In this work we propose to combine a supervoxel-based image representation with the concept of graph cuts as an efficient optimization technique for 3D deformable image registration. Due to the pixels/voxels-wise graph construction, the use of graph cuts in this context has been mainly limited to 2D applications. However, our work overcomes some of the previous limitations by posing the problem on a graph created by adjacent supervoxels, where the number of nodes in the graph is reduced from the number of voxels to the number of supervoxels...
October 4, 2017: Journal of Electronic Imaging
https://www.readbyqxmd.com/read/29209123/prediction-of-early-stage-hepatocellular-carcinoma-using-oncoscan-chromosomal-copy-number-aberration-data
#12
Ming-Chin Yu, Chao-Wei Lee, Yun-Shien Lee, Jang-Hau Lian, Chia-Lung Tsai, Yi-Ping Liu, Chun-Hsing Wu, Chi-Neu Tsai
AIM: To identify chromosomal copy number aberrations (CNAs) in early-stage hepatocellular carcinoma (HCC) and analyze whether they are correlated with patient prognosis. METHODS: One hundred and twenty patients with early-stage HCC were enrolled in our study, with the collection of formalin fixed, paraffin-embedded (FFPE) specimens and clinicopathological data. Tumor areas were marked by certified pathologists on a hematoxylin and eosin-stained slide, and cancer and adjacent non-cancerous tissues underwent extraction of DNA, which was analyzed with the Affymetrix OncoScan platform to assess CNAs and loss of heterozygosity (LOH)...
November 28, 2017: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/29199679/a-comparative-analysis-of-immunohistochemistry-and-fluorescent-in-situ-hybridization-assay-to-detect-anaplastic-lymphoma-kinase-status-in-lung-adenocarcinoma-cases-a-search-for-a-testing-algorithm
#13
P B Wagle, N A Jambhekar, R Kumar, K Prabhash, C S Pramesh, S B Desai, V Noronha, G Karimundackal, A Shah, A Joshi, S G Laskar, S Jiwnani, T Pai, J P Agarwal
INTRODUCTION: Testing for echinoderm microtubule-associated protein-like 4 (EML4) anaplastic lymphoma kinase (ALK) translocation by fluorescence in situ hybridization (FISH) is well established whereas the Food and Drug Administration (FDA) ALK immunohistochemical (IHC) test is relatively new. AIMS AND OBJECTIVE: The aim of this study is to compare FDA-approved ALK IHC test (D5F3 clone) with the standard ALK FISH test. MATERIALS AND METHODS: A validation and a test arm with 100 and 200 cases of Formalin-Fixed, Paraffin-embedded blocks of lung adenocarcinoma, respectively, comprised the material...
January 2017: Indian Journal of Cancer
https://www.readbyqxmd.com/read/29178216/diagnostic-utility-of-surgical-lung-biopsies-in-elderly-patients-with-indeterminate-interstitial-lung-disease
#14
Laszlo T Vaszar, Brandon T Larsen, Karen L Swanson, Jay H Ryu, Henry D Tazelaar
BACKGROUND AND OBJECTIVE: Idiopathic pulmonary fibrosis (IPF) is increasingly diagnosed by clinical and computed tomography (CT) criteria; however, surgical lung biopsy (SLB) may still be required in patients who lack definite CT features of usual interstitial pneumonia (UIP). We reviewed a cohort of elderly patients who underwent SLB, to evaluate the benefit of SLB in diagnosing idiopathic interstitial pneumonia (IIP). METHODS: We searched the pathology records of Mayo Clinic for ambulatory patients at least 75 years old, who underwent SLB between 2000 and 2012 for indeterminate IIP...
November 27, 2017: Respirology: Official Journal of the Asian Pacific Society of Respirology
https://www.readbyqxmd.com/read/29153888/-the-2015-classification-of-lung-adenocarcinomas-reproducibility-in-a-tunisian-department-specialised-in-thoracic-pathology
#15
Mona Mlika, Imen Helal, Emna Braham, Aida Ayadi, Ali Mrabet, Faouzi Mezni
INTRODUCTION: The new classification of lung cancer contains modifications of terminology and a new subdivision of the tumors with the most relevant modifications concerning the group of adenocarcinomas. The latter has been increasing and represents nowadays the most frequent type. Our aim was to assess the reproducibility of the new classification through the experience of a Department of Pathology specialized in thoracic pathology. METHODS: Our study included initially 106 cases diagnosed as adenocarcinomas and reviewed by 2 pathologists and 1 referee...
November 16, 2017: Annales de Pathologie
https://www.readbyqxmd.com/read/29153840/association-of-omics-features-with-histopathology-patterns-in-lung-adenocarcinoma
#16
Kun-Hsing Yu, Gerald J Berry, Daniel L Rubin, Christopher Ré, Russ B Altman, Michael Snyder
Adenocarcinoma accounts for more than 40% of lung malignancy, and microscopic pathology evaluation is indispensable for its diagnosis. However, how histopathology findings relate to molecular abnormalities remains largely unknown. Here, we obtained H&E-stained whole-slide histopathology images, pathology reports, RNA sequencing, and proteomics data of 538 lung adenocarcinoma patients from The Cancer Genome Atlas and used these to identify molecular pathways associated with histopathology patterns. We report cell-cycle regulation and nucleotide binding pathways underpinning tumor cell dedifferentiation, and we predicted histology grade using transcriptomics and proteomics signatures (area under curve >0...
November 13, 2017: Cell Systems
https://www.readbyqxmd.com/read/29131539/molecular-testing-on-endobronchial-ultrasound-ebus-fine-needle-aspirates-fna-impact-of-triage
#17
Simon Sung, John P Crapanzano, David DiBardino, David Swinarski, William A Bulman, Anjali Saqi
BACKGROUND: Endobronchial ultrasound (EBUS)-guided fine needle aspiration (FNA) is performed to diagnose and stage lung cancer. Multiple studies have described the value of Rapid On-Site Evaluation (ROSE), but often the emphasis is upon diagnosis than adequacy for molecular testing (MT). The aim was to identify variable(s), especially cytology-related, that can improve MT. METHODS: A search for EBUS-FNAs with ROSE was conducted for lung adenocarcinomas or when this diagnosis could not be excluded...
November 12, 2017: Diagnostic Cytopathology
https://www.readbyqxmd.com/read/29124891/the-diagnostic-value-of-tissue-button-technique-for-specimen-accusation-during-endobronchial-ultrasound-guided-transbronchial-fine-needle-aspiration
#18
Oren Fruchter, Anna Breslavsky, Tatyana Brozgol, Anna Grossman, Kessi Mikhailova, Alexey Bugayov, Kassa Shimelis, Hananya Vaknine, Oleg Sukmanov
INTRODUCTION: The quality of tissue acquisition during Endobronchial ultrasound-guided transbronchial needle aspiration (EBUS-TBNA) is a major determinant of the diagnostic yield of the procedure. In the tissue button (TB ) technique the retrieved cellular specimen is fixed in ethanol and subsequently scraped from slide using surgical blade into formaldehyde and processed like ordinary tissue biopsy thus potentially increasing its diagnostic value. OBJECTIVES: To retrospectively evaluate the diagnostic yield of a TB technique in patients undergoing EBUS-TBNA for various malignant and benign conditions...
November 10, 2017: Clinical Respiratory Journal
https://www.readbyqxmd.com/read/29090479/utility-of-lung-ultrasonography-for-detection-of-pleural-adhesions-in-dogs
#19
Akiko Uemura, Toshiharu Fukayama, Takashi Tanaka, Ryou Tanaka
OBJECTIVES: To assess lung respiratory movement ("lung sliding") in dogs using B-mode ultrasonography (US) and to develop a method that assesses adhesions between the parietal pleura and the lung. METHODS: Seventeen male beagles were anesthetized, and respiratory management was performed with intermittent positive pressure ventilation. Lung-sliding assessments and adhesion examinations were performed with lung US under general anesthesia before and 2 weeks after thoracotomy...
November 1, 2017: Journal of Ultrasound in Medicine: Official Journal of the American Institute of Ultrasound in Medicine
https://www.readbyqxmd.com/read/29051570/prediction-of-recurrence-in-early-stage-non-small-cell-lung-cancer-using-computer-extracted-nuclear-features-from-digital-h-e-images
#20
Xiangxue Wang, Andrew Janowczyk, Yu Zhou, Rajat Thawani, Pingfu Fu, Kurt Schalper, Vamsidhar Velcheti, Anant Madabhushi
Identification of patients with early stage non-small cell lung cancer (NSCLC) with high risk of recurrence could help identify patients who would receive additional benefit from adjuvant therapy. In this work, we present a computational histomorphometric image classifier using nuclear orientation, texture, shape, and tumor architecture to predict disease recurrence in early stage NSCLC from digitized H&E tissue microarray (TMA) slides. Using a retrospective cohort of early stage NSCLC patients (Cohort #1, n = 70), we constructed a supervised classification model involving the most predictive features associated with disease recurrence...
October 19, 2017: Scientific Reports
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