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pathology image analysis

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https://www.readbyqxmd.com/read/29223020/depressive-symptoms-impaired-glucose-metabolism-high-visceral-fat-and-high-systolic-blood-pressure-in-a-subgroup-of-women-with-recent-gestational-diabetes
#1
U Ferrari, F Banning, I Freibothe, K Tröndle, V Sacco, C Wichmann, S Reif, S Moschko, A Potzel, C Gar, N N Sommer, D Popp, J Seissler, A Lechner, H Künzel
Women with gestational diabetes (GDM) are a high risk group for early type 2 diabetes (T2D). Depression is a risk factor for T2D in the general population. We investigated in women after a recent pregnancy with GDM and without a clinical diagnosis of depression, whether mild to moderate depressive symptoms associate with pathologic glucose metabolism. In a cross-sectional analysis, we examined 173 women, 9 ± 3 months after delivery with several psychopathological assessments, 5-point oral glucose tolerance test with insulin, anthropometrics, and laboratory chemistry...
December 5, 2017: Journal of Psychiatric Research
https://www.readbyqxmd.com/read/29222682/-three-dimensional-analysis-of-nasal-physiology-representation-by-means-of-computational-fluid-dynamics
#2
REVIEW
F Sommer, T K Hoffmann, G Mlynski, M Reichert, A-S Grossi, R Kröger, J Lindemann
The human nose takes primary responsibility for preconditioning inhaled air. Numerous pathologies can affect the physiology of the nose. The beginnings of flow analyzes were carried out with three-dimensional casting models and differently colored liquids. Temperature and humidity could not be taken into account. Today, much more complex analyzes are possible using computational fluid dynamics (CFD), which are based on three-dimensional models generated from computed tomography (CT) or magnetic resonance imaging (MRI) datasets...
December 8, 2017: HNO
https://www.readbyqxmd.com/read/29222676/intravoxel-incoherent-motion-mr-imaging-of-early-cervical-carcinoma-correlation-between-imaging-parameters-and-tumor-stroma-ratio
#3
Xiangsheng Li, Ping Wang, Dechang Li, Hongxian Zhu, Limin Meng, Yunlong Song, Lizhi Xie, Jianping Zhu, Tao Yu
OBJECTIVES: To investigate if intravoxel incoherent motion (IVIM) MR imaging can predict the tumour-stroma ratio (TSR) in patients with early cervical carcinoma. METHODS: Fifty-four patients with early cervical carcinoma were prospectively enrolled into this study. All patients underwent IVIM imaging and parameters including D, D* and f value were measured. The tumours were classified into stroma-rich and stroma-poor group according to TSR, and comparisons of IVIM parameters between two groups were performed...
December 8, 2017: European Radiology
https://www.readbyqxmd.com/read/29222563/quantitative-analysis-and-classification-of-the-nasal-base-using-a-parametric-model
#4
Christian H Barnes, Heidi Chen, Jason J Chen, Erica Su, Wesley J Moy, Brian J F Wong
Importance: The nasal base view is often overlooked in rhinoplasty analysis and, unlike lateral and frontal views, lacks detailed quantitative analysis and descriptors. While shape-category analysis of the nasal base is well established, these descriptive methods remain subjective and do not facilitate quantitative analysis. Objective: To establish a simple and quantitative classification scheme using a multiple-parameter numerical model for analyzing and describing the shape of the nasal base...
December 7, 2017: JAMA Facial Plastic Surgery
https://www.readbyqxmd.com/read/29221721/factors-affecting-the-precision-of-lesion-sizing-with-contrast-enhanced-spectral-mammography
#5
M Del Mar Travieso-Aja, P Naranjo-Santana, C Fernández-Ruiz, W Severino-Rondón, D Maldonado-Saluzzi, M Rodríguez Rodríguez, V Vega-Benítez, O P Luzardo
AIM: To evaluate the precision of the pre-surgical measurement of the size of breast cancer by contrast-enhanced spectral mammography (CESM). MATERIAL AND METHODS: This was a retrospective study of 204 breast cancers. Variables related to tumour biology and anthropometric variables were recorded and considered when evaluating the efficacy of CESM in predicting tumour size. Microscopic measurement of the largest diameter of the tumour at pathology was chosen as the reference standard...
December 5, 2017: Clinical Radiology
https://www.readbyqxmd.com/read/29221719/integration-of-different-criteria-for-borderline-resectable-pancreatic-cancer-using-classification-tree-analysis-the-use-of-radiological-tumour-vascular-interface-in-correlation-with-surgical-and-pathological-outcomes
#6
J A Hwang, K M Jang, S H Kim, T W Kang, K D Song, D I Cha, S Ahn
AIM: To integrate various criteria for borderline resectable pancreatic cancer (BRPC) based on radiological parameters using classification tree analysis. MATERIALS AND METHODS: The institutional review board approved this retrospective study and waived the requirement for informed consent. Two hundred and thirty-five tumour-vein interfaces and 67 tumour-artery interfaces in 245 patients with surgically confirmed pancreatic ductal adenocarcinoma who underwent both preoperative computed tomography (CT) and magnetic resonance imaging (MRI) were assessed by two independent readers...
December 5, 2017: Clinical Radiology
https://www.readbyqxmd.com/read/29221718/correlation-between-dual-energy-spectral-ct-imaging-parameters-and-pathological-grades-of-non-small-cell-lung-cancer
#7
L-Y Lin, Y Zhang, S-T Suo, F Zhang, J-J Cheng, H-W Wu
AIM: To investigate the correlation between pathological grades of non-small cell lung cancers (NSCLCs) and quantitative parameters generated in dual-energy spectral computed tomography (CT). MATERIALS AND METHODS: Fifty-three patients with NSCLCs who underwent preoperative dual-energy spectral CT imaging and surgical resection were evaluated retrospectively. These patients were divided into a low-grade group and a high-grade group based on their histopathological differentiation...
December 5, 2017: Clinical Radiology
https://www.readbyqxmd.com/read/29221277/worse-survival-after-curative-resection-in-patients-with-pathological-stage-i-non-small-cell-lung-cancer-adjoining-pulmonary-cavity-formation
#8
Hiroyuki Kimura, Hisashi Saji, Tomoyuki Miyazawa, Hiroki Sakai, Masataka Tsuda, Yoichi Wakiyama, Hideki Marushima, Koji Kojima, Haruhiko Nakamura
Background: A few investigators have suggested an association between lung cancer and pulmonary cavity. However, this clinical association and its carcinogenic correlations are not well recognized. This study aimed to clarify the clinical features and to demonstrate the associated survival outcomes after curative surgery in patients with early non-small cell lung cancer (NSCLC) adjoining pulmonary cavity formation. Methods: We retrospectively reviewed 275 patients with pathological stage I NSCLC by re-evaluating their chest computed tomography images...
September 2017: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/29220095/digital-image-analysis-of-ki67-in-hot-spots-is-superior-to-both-manual-ki67-and-mitotic-counts-in-breast-cancer
#9
Gustav Stålhammar, Stephanie Robertson, Lena Wedlund, Michael Lippert, Mattias Rantalainen, Jonas Bergh, Johan Hartman
AIMS: During pathological examination of breast tumours, proliferative activity is routinely evaluated by a count of mitoses. Adding immunohistochemical stains of Ki67 provides extra prognostic and predictive information. However, currently used methods for these evaluations suffer from imperfect reproducibility. It is still unclear whether analysis of Ki67 should be performed in hot spots, in the tumour periphery or as an average of the whole tumour section. In this paper, we compare the clinical relevance of mitoses, Ki67 and Phosphohistone H3 in two cohorts of primary breast cancer specimens (total n=294)...
December 8, 2017: Histopathology
https://www.readbyqxmd.com/read/29218895/deep-integrative-analysis-for-survival-prediction
#10
Chenglong Huang, Albert Zhang, Guanghua Xiao
Survival prediction is very important in medical treatment. However, recent leading research is challenged by two factors: 1) the datasets usually come with multi-modality; and 2) sample sizes are relatively small. To solve the above challenges, we developed a deep survival learning model to predict patients' survival outcomes by integrating multi-view data. The proposed network contains two sub-networks, one view-specific and one common sub-network. We designated one CNN-based and one FCN-based sub-network to efficiently handle pathological images and molecular profiles, respectively...
2018: Pacific Symposium on Biocomputing
https://www.readbyqxmd.com/read/29218690/neoadjuvant-volumetric-modulated-arc-therapy-in-rectal-cancer-and-the-correlation-of-pathological-response-with-diffusion-weighted-mri-and-apoptotic-markers
#11
Necla Gurdal, Merdan Fayda, Nijat Alishev, Baris Bakir, Didem Tastekin, Faruk Aykan, Ugur Gezer, Emre Balik, Esra Kaytan Saglam, Ethem Nezih Oral, Mine Gulluoglu, Ahmet Kizir
PURPOSE: In this prospective observational study, we aimed to report the applicability and tolerability of neoadjuvant volumetric modulated arc therapy with simultaneous integrated boost (SIB-VMAT) and concurrent chemotherapy in patients with locally advanced rectal cancer (LARC), and to evaluate the correlation of pathological response with apparent diffusion coefficient (ADC) measurements on diffusion-weighted magnetic resonance imaging (DW-MRI) and apoptotic markers. METHODS: The study enrolled 30 patients with T3 to T4 and/or N+ rectal cancer who preoperatively received SIB-VMAT and concurrent chemotherapy...
December 6, 2017: Tumori
https://www.readbyqxmd.com/read/29218391/ct-guided-percutaneous-biopsy-of-sclerotic-bone-lesions-diagnostic-outcomes
#12
I-Yuan Joseph Chang, Hakan Ilaslan, Murali Sundaram, Jean Schils, Naveen Subhas
OBJECTIVE: To determine the diagnostic yield of CT-guided percutaneous biopsy of densely sclerotic bone lesions. MATERIALS AND METHODS: We retrospectively analyzed CT-guided percutaneous bone biopsies performed at our institution from September 2008 through August 2011 (329 cases) and from September 2012 through August 2015 (324 cases) after adoption of a battery-powered drill system (OnControl). Bone lesions were included in the analysis if they were >70% sclerotic by visual inspection, had a density > 2 times that of adjacent trabecular bone, and had an attenuation of ≥250 HU...
December 7, 2017: Skeletal Radiology
https://www.readbyqxmd.com/read/29214728/disruption-of-network-for-visual-perception-of-natural-motion-in-primary-dystonia
#13
Koji Fujita, Wataru Sako, An Vo, Susan B Bressman, David Eidelberg
In healthy subjects, brain activation in motor regions is greater during the visual perception of "natural" target motion, which complies with the two-thirds power law, than of "unnatural" motion, which does not. It is unknown whether motion perception is normally mediated by a specific network that can be altered in the setting of disease. We used block-design functional magnetic resonance imaging and covariance analysis to identify normal network topographies activated in response to "natural" versus "unnatural" motion...
December 6, 2017: Human Brain Mapping
https://www.readbyqxmd.com/read/29214637/identification-and-treatment-of-gestational-trophoblastic-neoplasia-located-in-the-cesarean-scar
#14
Xiaoyu Wang, Yuan Li, Junjun Yang, Yonglan He, Ming Wang, Xirun Wan, Yang Xiang
OBJECTIVE: To identify the clinical characteristics of, and the diagnostic and therapeutic strategies for, gestational trophoblastic neoplasia (GTN) located in the cesarean scar. METHODS: The present retrospective analysis was conducted among patients diagnosed with GTN located in the cesarean scar at Peking Union Medical College Hospital, Beijing, China, between June 1, 2006, and May 31, 2016. Clinical features, diagnostic and therapeutic procedures, and outcomes were reviewed...
December 6, 2017: International Journal of Gynaecology and Obstetrics
https://www.readbyqxmd.com/read/29214562/use-of-quantitative-spect-ct-reconstruction-in-99mtc-sestamibi-imaging-of-patients-with-renal-masses
#15
Krystyna M Jones, Lilja B Solnes, Steven P Rowe, Michael A Gorin, Sara Sheikhbahaei, George Fung, Eric C Frey, Mohamad E Allaf, Yong Du, Mehrbod S Javadi
OBJECTIVE: Technetium-99m (99mTc)-sestamibi single-photon emission computed tomography/computed tomography (SPECT/CT) has previously been shown to allow for the accurate differentiation of benign renal oncocytomas and hybrid oncocytic/chromophobe tumors (HOCTs) apart from other malignant renal tumor histologies, with oncocytomas/HOCTs showing high uptake and renal cell carcinoma (RCC) showing low uptake based on uptake ratios from non-quantitative single-photon emission computed tomography (SPECT) reconstructions...
December 6, 2017: Annals of Nuclear Medicine
https://www.readbyqxmd.com/read/29213007/the-value-of-lesion-size-as-an-adjunct-to-the-bi-rads-mri-2013-descriptors-in-the-diagnosis-of-solitary-breast-masses
#16
Makiko Kawai, Masako Kataoka, Shotaro Kanao, Mami Iima, Natsuko Onishi, Akane Ohashi, Rena Sakaguchi, Masakazu Toi, Kaori Togashi
PURPOSE: This study aimed to evaluate the MRI findings of breast solitary masses in diagnostic procedures to decide the appropriate category based on American College of Radiology (ACR) BI-RADS-MRI 2013, with the focus on lesion size. METHODS: A retrospective review of 2,603 consecutive breast MRI reports identified 250 pathologically-proven solitary breast masses. Dynamic-contrast enhanced images and diffusion-weighted images were performed on a 3.0/1.5 Tesla Scanner with a 16/4 channel dedicated breast coil...
December 7, 2017: Magnetic Resonance in Medical Sciences: MRMS
https://www.readbyqxmd.com/read/29212544/plaque-volume-and-plaque-risk-profile-in-diabetic-vs-non-diabetic-patients-undergoing-lipid-lowering-therapy-a-study-based-on-3d-intravascular-ultrasound-and-virtual-histology
#17
Tomas Kovarnik, Zhi Chen, Gary S Mintz, Andreas Wahle, Kristyna Bayerova, Ales Kral, Martin Chval, Karel Kopriva, John Lopez, Milan Sonka, Ales Linhart
BACKGROUND: Coronary atherosclerosis progresses faster in patients with diabetes mellitus (DM) and causes higher morbidity and mortality in such patients compared to non-diabetics ones (non-DM). We quantify changes in plaque volume and plaque phenotype during lipid-lowering therapy in DM versus non-DM patients using advanced intracoronary imaging. METHODS: We analyzed data from 61 patients with stable angina pectoris included to the PREDICT trial searching for prediction of plaque changes during intensive lipid-lowering therapy (40 mg rosuvastatin daily)...
December 7, 2017: Cardiovascular Diabetology
https://www.readbyqxmd.com/read/29212368/impact-of-variations-in-prostatic-apex-shape-on-apical-margin-positive-rate-after-radical-prostatectomy-robot-assisted-laparoscopic-radical-prostatectomy-versus-open-radical-prostatectomy
#18
Young Dong Yu, Minseung Lee, Sung Kyu Hong, Seok-Soo Byun, Sang Eun Lee, Sangchul Lee
AIM: To evaluate the effects of prostatic apex shape variations on positive apical margin rate (PAM) after radical prostatectomy (RP) by undertaking a comparative study of robot-assisted laparoscopic radical prostatectomy (RALP) versus open radical prostatectomy (ORP). METHODS: A total 3,324 cases of RP (1,004 ORP and, 2,320 RALP) from January 2004 to March 2017 were retrospectively reviewed. All patients underwent preoperative magnetic resonance imaging (MRI) and the cohorts were stratified into 4 categories according to prostatic apical shape at the mid-sagittal plane...
December 6, 2017: Journal of Endourology
https://www.readbyqxmd.com/read/29210329/a-concise-evidence-based-physical-examination-for-diagnosis-of-acromioclavicular-joint-pathology-a-systematic-review
#19
Michael K Krill, Samuel Rosas, KiHyun Kwon, Andrew Dakkak, Benedict U Nwachukwu, Frank McCormick
OBJECTIVES: The clinical examination of the shoulder joint is an undervalued diagnostic tool for evaluating acromioclavicular joint (AC) joint pathology. Applying evidence-based clinical tests enables providers to make an accurate diagnosis and minimize costly imaging procedures and potential delays in care. The purpose of this study was to create a decision tree analysis enabling simple and accurate diagnosis of AC joint pathology. METHODS: A systematic review of the Medline, Ovid and Cochrane Review databases was performed to identify level one and two diagnostic studies evaluating clinical tests for AC joint pathology...
December 6, 2017: Physician and Sportsmedicine
https://www.readbyqxmd.com/read/29209961/finite-element-analysis-of-the-wrist-in-stroke-patients-the-effects-of-hand-grip
#20
Muhammad Hanif Ramlee, Gan Kok Beng, Nazri Bajuri, Mohammed Rafiq Abdul Kadir
The provision of the most suitable rehabilitation treatment for stroke patient remains an ongoing challenge for clinicians. Fully understanding the pathomechanics of the upper limb will allow doctors to assist patients with physiotherapy treatment that will aid in full arm recovery. A biomechanical study was therefore conducted using the finite element (FE) method. A three-dimensional (3D) model of the human wrist was reconstructed using computed tomography (CT)-scanned images. A stroke model was constructed based on pathological problems, i...
December 5, 2017: Medical & Biological Engineering & Computing
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