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Digital Pathology

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https://www.readbyqxmd.com/read/28723750/sphincter-preserving-surgery-for-low-middle-rectal-cancer-can-we-predict-feasibility-with-high-resolution-magnetic-resonance-imaging
#1
Hai-Bin Zhu, Lin Wang, Zi-Yu Li, Xiao-Ting Li, Xiao-Yan Zhang, Ying-Shi Sun
The study proposed to evaluate the feasibility of predicting sphincter-sparing surgery (SSS) preoperatively in low-middle rectal cancer by using magnetic resonance (MR).The study included both retrospective and prospective design. In the retrospective design, the distance from lower edge of tumor to upper margin of the internal sphincter (Dis1) and distance to anal verge (Dis2) were measured on MR, the distance to anal verge recorded by colonoscopy (Dis3) and digital rectal examination (Dis4) were also obtained...
July 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28721300/extracellular-matrix-alterations-in-the-peyronie-s-disease
#2
Marcelo Silva Watanabe, Thérèse Rachel Theodoro, Natália Lima Coelho, Aline Mendes, Monica Luzia Pereira Leonel, Ana Maria Mader, Helena Bonciani Nader, Sidney Glina, Maria Aparecida Silva Pinhal
Peyronie's disease is characterized by fibrous plaque formation of the tunica albuginea, causing penile deformity and fertility problems. The aim of the present study was to investigate alterations in the extracellular matrix in Peyronie's disease. The study used tissues collected by surgical procedure from individuals that presented a well-established disease, while control samples were obtained by biopsies of fresh cadavers. Immunohistochemistry analysis followed by digital quantification was performed to evaluate TGF-β, heparanases and metalloproteinases (MMPs)...
July 2017: Journal of Advanced Research
https://www.readbyqxmd.com/read/28720009/the-effect-of-isolated-finger-stiffness-on-adjacent-digit-function
#3
Rasha Baaqeel, Kitty Wu, Shrikant J Chinchalkar, Douglas C Ross
BACKGROUND: Isolated stiffness in a single finger can affect the function of adjacent digits and decrease overall hand function due to the quadriga phenomenon. This study objectively quantifies the dysfunctional impact of each individual stiff finger upon the remaining digits. METHODS: Twenty-five individuals (10 men and 15 women) with a mean age of 31 years (range, 18-58 years) without any upper limb pathology, neuropathy, or systemic illness were recruited. Volar-based finger splints were used to hold individual digits of the dominant hand (24 right and 1 left) sequentially in full extension at the metacarpophalangeal (MCP), proximal interphalangeal (PIP), and distal interphalangeal (DIP) joints...
March 1, 2017: Hand: Official Journal of the American Association for Hand Surgery
https://www.readbyqxmd.com/read/28719018/ante-mortem-csf-tau-levels-correlate-with-post-mortem-tau-pathology-in-ftld
#4
D J Irwin, A Lleó, S X Xie, C T McMillan, D Wolk, E B Lee, V M Van Deerlin, L M Shaw, J Q Trojanowski, M Grossman
OBJECTIVE: To test the hypotheses that 1) antemortem cerebrospinal fluid tau levels correlate with postmortem tau pathology in frontotemporal lobar degeneration and 2) tauopathy patients have higher phosphorylated-tau levels compared to TDP-43 proteinopathy patients while accounting for Alzheimer's disease co-pathology. METHODS: Patients had autopsy-confirmed frontotemporal lobar degeneration with tauopathy (n=31), TDP-43 proteinopathy (n=49), or Alzheimer's disease (n=26) with antemortem cerebrospinal fluid...
July 18, 2017: Annals of Neurology
https://www.readbyqxmd.com/read/28717121/impact-of-doppler-ultrasound-on-diagnosis-and-therapy-control-of-lienalis-steal-syndrome-after-liver-transplantation
#5
Eva M Teegen, Timm Denecke, Rosa B Schmuck, Robert Öllinger, Dominik Geisel, Johann Pratschke, Sascha S Chopra
BACKGROUND Lienalis steal syndrome is a rare complication after orthotopic liver transplantation leading to severe complications. Routine duplex sonography allows early and safe detection of lienalis steal syndrome and secondarily helps to monitor the outcome by evaluating the hemodynamics. MATERIAL AND METHODS This analysis included eight patients who after orthotopic liver transplantation needed splenic artery embolization due to lienalis steal syndrome. Lienalis steal syndrome was assumed in case of elevated transaminases, bilirubinemia or persistent ascites, and the absence of further pathologies...
July 18, 2017: Annals of Transplantation: Quarterly of the Polish Transplantation Society
https://www.readbyqxmd.com/read/28713173/a-standard-mammography-unit-standard-3d-ultrasound-probe-fusion-prototype-first-results
#6
Rüdiger Schulz-Wendtland, Sebastian M Jud, Peter A Fasching, Arndt Hartmann, Marcus Radicke, Claudia Rauh, Michael Uder, Marius Wunderle, Paul Gass, Hanna Langemann, Matthias W Beckmann, Julius Emons
AIM: The combination of different imaging modalities through the use of fusion devices promises significant diagnostic improvement for breast pathology. The aim of this study was to evaluate image quality and clinical feasibility of a prototype fusion device (fusion prototype) constructed from a standard tomosynthesis mammography unit and a standard 3D ultrasound probe using a new method of breast compression. MATERIALS AND METHODS: Imaging was performed on 5 mastectomy specimens from patients with confirmed DCIS or invasive carcinoma (BI-RADS (™) 6)...
June 2017: Geburtshilfe und Frauenheilkunde
https://www.readbyqxmd.com/read/28709795/a-biomechanical-comparison-of-extensor-carpi-ulnaris-subsheath-reconstruction-techniques
#7
Sameer K Puri, Kyle W Morse, Krystle A Hearns, Michelle G Carlson
PURPOSE: Several surgical stabilization techniques have been described to address pathological subluxation of the extensor carpi ulnaris (ECU) tendon, with no comparative data available. This study compares ECU stability after subsheath reconstruction, with and without ulnar groove deepening, to stability with an intact subsheath in a cadaveric model. METHODS: Position of the ECU tendon relative to the ulnar groove was measured in 5 human cadaveric specimens with the subsheath intact, sectioned, and after 3 reconstruction scenarios: reconstructed, reconstructed with ulnar groove deepened, and ulnar groove deepened with subsheath sectioned...
July 11, 2017: Journal of Hand Surgery
https://www.readbyqxmd.com/read/28701897/usefulness-of-pulse-oximeter-that-can-measure-spo2-to-one-digit-after-decimal-point
#8
Akihiro Yamamoto, Naoto Burioka, Aritoshi Eto, Takashi Amisaki, Eiji Shimizu
Pulse oximeters are used to noninvasively measure oxygen saturation in arterial blood (SaO2). Although arterial oxygen saturation measured by pulse oximeter (SpO2) is usually indicated in 1% increments, the value of SaO2 from arterial blood gas analysis is not an integer. We have developed a new pulse oximeter that can measure SpO2 to one digit after the decimal point. The values of SpO2 from the newly developed pulse oximeter are highly correlated with the values of SaO2 from arterial blood gas analysis (SpO2 = 0...
June 2017: Yonago Acta Medica
https://www.readbyqxmd.com/read/28694665/pancreas-preserving-distal-duodenectomy-a-versatile-operation-for-a-range-of-infra-papillary-pathologies
#9
W Kyle Mitchell, Pradeep F Thomas, Abed M Zaitoun, Adam J Brooks, Dileep N Lobo
AIM: To investigate the range of pathologies treated by pancreas preserving distal duodenectomy (PPDD) and present the outcome of follow-up. METHODS: Neoplastic lesions of the duodenum are treated conventionally by pancreaticoduodenectomy. Lesions distal to the major papilla may be suitable for a pancreas-preserving distal duodenectomy, potentially reducing morbidity and mortality. We present our experience with this procedure. Selective intraoperative duodenoscopy assessed the relationship of the papilla to the lesion...
June 21, 2017: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/28687602/imaging-b-cells-in-a-mouse-model-of-multiple-sclerosis-using-64-cu-rituximab-pet
#10
Michelle L James, Aileen Hoehne, Aaron T Mayer, Kendra Lechtenberg, Monica Moreno, Gayatri Gowrishankar, Ohad Ilovich, Arutselvan Natarajan, Emily M Johnson, Joujou Nguyen, Lisa Quach, May Han, Marion Buckwalter, Sudeep Chandra, Sanjiv S Gambhir
B lymphocytes are a key pathological feature of multiple sclerosis (MS), and are becoming an important therapeutic target for this condition. Currently, there is no approved technique to non-invasively visualize B cells in the central nervous system (CNS) to monitor MS disease progression and response to therapies. Here we evaluated (64)Cu-Rituximab, a radiolabeled antibody specifically targeting the human B cell marker CD20, for its ability to image B cells in a mouse model of MS using positron emission tomography (PET)...
July 7, 2017: Journal of Nuclear Medicine: Official Publication, Society of Nuclear Medicine
https://www.readbyqxmd.com/read/28686499/pathologists-computer-assisted-diagnosis-a-mock-up-of-a-prototype-information-system-to-facilitate-automation-of-pathology-sign-out
#11
Navid Farahani, Zheng Liu, Dylan Jutt, Jeffrey L Fine
CONTEXT: - Pathologists' computer-assisted diagnosis (pCAD) is a proposed framework for alleviating challenges through the automation of their routine sign-out work. Currently hypothetical, pCAD is based on a triad of advanced image analysis, deep integration with heterogeneous information systems, and a concrete understanding of traditional pathology workflow. Prototyping is an established method for designing complex new computer systems such as pCAD. OBJECTIVE: - To describe, in detail, a prototype of pCAD for the sign-out of a breast cancer specimen...
July 7, 2017: Archives of Pathology & Laboratory Medicine
https://www.readbyqxmd.com/read/28683830/primary-hepatic-neuroendocrine-tumors-multi-modal-imaging-features-with-pathological-correlations
#12
Kai Yang, Ying-Sheng Cheng, Ji-Jin Yang, Xu Jiang, Ji-Xiang Guo
BACKGROUND: Primary hepatic neuroendocrine carcinomas (PHNECs) are rare and asymptomatic, and are therefore difficult to distinguish radiologically from other liver carcinomas. In this study, we aimed to determine the computed tomography (CT), magnetic resonance imaging (MRI), and digital subtraction angiography (DSA) features of PHNECs. METHODS: A retrospective analysis of 11 patients with pathologically proven PHNECs was performed from January 2009 to September 2014...
July 6, 2017: Cancer Imaging: the Official Publication of the International Cancer Imaging Society
https://www.readbyqxmd.com/read/28681740/cognition-in-advanced-normal-pressure-hydrocephalus-a-pilot-study-from-south-india
#13
Robert Mathew, Sauda Pavithran
BACKGROUND: Literature on cognition in normal pressure hydrocephalus (NPH) is sparse and more so on cognition in advanced NPH. OBJECTIVE: To study the cognitive profile in a hospital-based cohort of cognitively-advanced NPH. SETTINGS AND DESIGN: This was a prospective cross-sectional study. The patients included those availing dementia care service from three different tertiary care centres during a period of 5 years from 2010 to 2014. Patients were considered to have cognitively-advanced NPH if the Addenbrooke's Cognitive Examination(ACE) score was 50 or less...
July 2017: Neurology India
https://www.readbyqxmd.com/read/28681097/characterizing-diagnostic-search-patterns-in-digital-breast-pathology-scanners-and-drillers
#14
Ezgi Mercan, Linda G Shapiro, Tad T Brunyé, Donald L Weaver, Joann G Elmore
Following a baseline demographic survey, 87 pathologists interpreted 240 digital whole slide images of breast biopsy specimens representing a range of diagnostic categories from benign to atypia, ductal carcinoma in situ, and invasive cancer. A web-based viewer recorded pathologists' behaviors while interpreting a subset of 60 randomly selected and randomly ordered slides. To characterize diagnostic search patterns, we used the viewport location, time stamp, and zoom level data to calculate four variables: average zoom level, maximum zoom level, zoom level variance, and scanning percentage...
July 5, 2017: Journal of Digital Imaging: the Official Journal of the Society for Computer Applications in Radiology
https://www.readbyqxmd.com/read/28680908/special-section-guest-editorial-digital-pathology
#15
Metin N Gurcan, John E Tomaszewski, Anant Madabhushi
No abstract text is available yet for this article.
April 2017: Journal of Medical Imaging
https://www.readbyqxmd.com/read/28680895/visualization-of-the-capitellum-during-elbow-arthroscopy-a-comparison-of-3-portal-techniques
#16
David P Trofa, Stephanie M Gancarczyk, Joseph M Lombardi, Eric C Makhni, Charles A Popkin, Christopher S Ahmad
BACKGROUND: Capitellar osteochondritis dissecans (OCD) is a debilitating condition of unknown etiology for which various arthroscopic treatments are available. Prior data suggest that greater than 75% of the capitellum can be visualized arthroscopically through a dual lateral portal approach. However, there is no literature assessing arthroscopic visualization of the capitellum via alternative portals. PURPOSE: To determine the percentage of capitellum visualized using the dual lateral, distal ulnar and soft spot, and posterolateral and soft spot portal configurations in a cadaver model...
June 2017: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/28677240/application-of-automated-image-analysis-reduces-the-workload-of-manual-screening-of-sentinel-lymph-node-biopsies-in-breast-cancer
#17
Henrik Holten-Rossing, Maj-Lis Møller Talman, Anne Marie Bak Jylling, Anne-Vibeke Laenkholm, Martin Kristensson, Ben Vainer
INTRODUCTION: Breast cancer is one of the most common cancer diseases in women with more than 1.67 million cases diagnosed worldwide each year. In breast cancer, the sentinel lymph node (SLN) pinpoints the first lymph node(s) into which the tumor spreads and it is usually located in the ipsilateral axilla. In patients with no clinical signs of metastatic disease in the axilla, a SLN biopsy (SLNB) is performed. Assessment of metastases in the SLNB is done in a conventional microscope by manually observing a metastasis and measuring its size and/or counting the number of tumor cells...
July 5, 2017: Histopathology
https://www.readbyqxmd.com/read/28668427/typical-mr-imaging-findings-of-perianal-infections-in-patients-with-hematologic-malignancies
#18
Nuray Haliloglu, Basak Gulpinar, Esra Ozkavukcu, Ayse Erden
OBJECTIVE: We aimed to investigate the MR imaging findings of patients with hematologic malignancies who have symptoms suggesting perianal infection and to demonstrate the importance of imaging. SUBJECTS AND METHODS: The study included 36 patients with hematologic malignancies who underwent anorectal MR imaging in our department between September 2011-May 2016. Two radiologists experienced in abdominal radiology viewed the MR images in consensus. Abscesses, fistulous or sinus tracts, signal alterations and contrast enhancement in keeping with an inflammation and edema in the perianal region were recorded...
August 2017: European Journal of Radiology
https://www.readbyqxmd.com/read/28668424/digital-breast-tomosynthesis-versus-full-field-digital-mammography-which-modality-provides-more-accurate-prediction-of-margin-status-in-specimen-radiography
#19
Heba A Amer, Florian Schmitzberger, Barbara Ingold-Heppner, Julia Kussmaul, Manal F El Tohamy, Hazim I Tantawy, B Hamm, M Makowski, Eva M Fallenberg
OBJECTIVES: To evaluate the reliability of tumor margin assessment in specimen radiography (SR) using digital breast tomosynthesis (DBT) and full-field digital mammography (FFDM) in comparison to postoperative histopathology margin status as the gold standard. METHODS: After ethics committee approval, 102 consecutive patients who underwent breast conservative surgery for nonpalpable proven breast cancer were prospectively included. All patients underwent ultrasound/mammography-guided wire localization of their lesions...
August 2017: European Journal of Radiology
https://www.readbyqxmd.com/read/28659161/associations-between-cerebral-amyloid-and-changes-in-cognitive-function-and-falls-risk-in-subcortical-ischemic-vascular-cognitive-impairment
#20
Elizabeth Dao, John R Best, Ging-Yuek Robin Hsiung, Vesna Sossi, Claudia Jacova, Roger Tam, Teresa Liu-Ambrose
BACKGROUND: To determine the association between amyloid-beta (Aβ) plaque deposition and changes in global cognition, executive functions, information processing speed, and falls risk over a 12-month period in older adults with a primary clinical diagnosis of subcortical ischemic vascular cognitive impairment (SIVCI). METHODS: This is a secondary analysis of data acquired from a subset of participants (N = 22) who were enrolled in a randomized controlled trial of aerobic exercise (NCT01027858)...
June 28, 2017: BMC Geriatrics
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