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https://www.readbyqxmd.com/read/27913349/adaptive-cascade-regression-model-for-robust-face-alignment
#1
Qingshan Liu, Jiankang Deng, Jing Yang, Guangcan Liu, Dacheng Tao
Cascade regression is a popular face alignment approach, and it has achieved good performances on the wild databases. However, it depends heavily on local features in estimating reliable landmark locations and therefore suffers from corrupted images, such as images with occlusion, which often exists in real-world face images. In this paper, we present a new adaptive cascade regression model for robust face alignment. In each iteration, the shape-indexed appearance is introduced to estimate the occlusion level of each landmark, and each landmark is then weighted according to its estimated occlusion level...
December 1, 2016: IEEE Transactions on Image Processing: a Publication of the IEEE Signal Processing Society
https://www.readbyqxmd.com/read/27913265/hearing-preservation-during-anterior-petrosectomy-the-cochlear-safety-line
#2
Xiaoming Guo, Halima Tabani, Dylan Griswold, Ali Tayebi Meybodi, Jose Juan Gonzalez Sanchez, Michael T Lawton, Arnau Benet
BACKGROUND: Identification and protection of the cochlea during anterior petrosectomy is key to prevent hearing loss. Currently, there is no optimal method to infer the position of the cochlea in relation to the Kawase quadrangle, therefore damage to the cochlea during anterior petrosectomy remains a substantial risk. OBJECTIVES: To identify and define landmarks available during anterior petrosectomy to locate the cochlea and prevent its damage. METHODS: Kawase approach was simulated in eleven specimens...
November 29, 2016: World Neurosurgery
https://www.readbyqxmd.com/read/27912155/home-based-interventions-improve-trained-but-not-novel-dual-task-balance-performance-in-older-adults-a-randomized-controlled-trial
#3
Suleeporn Wongcharoen, Somporn Sungkarat, Peeraya Munkhetvit, Vipul Lugade, Patima Silsupadol
The purpose of this study was to compare the efficacy of four different home-based interventions on dual-task balance performance and to determine the generalizability of the four trainings to untrained tasks. Sixty older adults, aged 65 and older, were randomly assigned to one of four home-based interventions: single-task motor training, single-task cognitive training, dual-task motor-cognitive training, and dual-task cognitive-cognitive training. Participants received 60-min individualized training sessions, 3 times a week for 4 weeks...
November 22, 2016: Gait & Posture
https://www.readbyqxmd.com/read/27911276/the-mtor-inhibitor-everolimus-in-combination-with-azacitidine-in-patients-with-relapsed-refractory-acute-myeloid-leukemia-a-phase-ib-ii-study
#4
Peter Tan, Ing Soo Tiong, Shaun Fleming, Giovanna Pomilio, Nik Cummings, Mark Droogleever, Julie McManus, Anthony Schwarer, John Catalano, Sushrut Patil, Sharon Avery, Andrew Spencer, Andrew Wei
Therapeutic options are limited in relapsed/refractory acute myeloid leukemia (AML). We evaluated the maximum tolerated dose (MTD) and preliminary efficacy of mammalian target of rapamycin (mTOR) inhibitor, everolimus (days 5-21) in combination with azacitidine 75 mg/m2 subcutaneously (days 1-5 and 8-9 every 28 days) in 40 patients with relapsed (n = 27), primary refractory (n = 11) or elderly patients unfit for intensive chemotherapy (n = 2). MTD was not reached following everolimus dose escalation (2.5, 5 or 10 mg; n = 19) to the 10 mg dose level which was expanded (n = 21)...
November 29, 2016: Oncotarget
https://www.readbyqxmd.com/read/27911234/ventriculostomy-associated-hemorrhage-a-risk-assessment-by-radiographic-simulation
#5
Faith C Robertson, Muhammad M Abd-El-Barr, Srinivasan Mukundan, William B Gormley
OBJECTIVE Ventriculostomy entry sites are commonly selected by freehand estimation of Kocher's point or approximations from skull landmarks and a trajectory toward the ipsilateral frontal horn of the lateral ventricles. A recognized ventriculostomy complication is intracranial hemorrhage from cortical vessel damage; reported rates range from 1% to 41%. In this report, the authors assess hemorrhagic risk by simulating traditional ventriculostomy trajectories and using CT angiography (CTA) with venography (CTV) data to identify potential complications, specifically from cortical draining veins...
December 2, 2016: Journal of Neurosurgery
https://www.readbyqxmd.com/read/27910717/dose-optimisation-for-assessment-of-periodontal-structures-in-cone-beam-ct-examinations
#6
Ayman Al-Okshi, Chrysoula Theodorakou, Christina Lindh
OBJECTIVE: To investigate the relationship between dose and image quality for a dedicated dental Cone Beam CT (CBCT) scanner using different scanning protocols and to set up an optimal imaging protocol for assessment of periodontal structures. METHODS: Radiation dose and image quality measurements were made using the 3D Accuitomo 170 dental CBCT scanner. The SedentexCT IQ phantom was used to investigate the relationship between contrast-to-noise ratio (CNR) and dose-area product (DAP)...
December 2, 2016: Dento Maxillo Facial Radiology
https://www.readbyqxmd.com/read/27910296/the-year-since-the-guidelines-a-concise-update-on-recent-advances-in-pulmonary-hypertension
#7
Abhishek Mishra, Maninder Singh, Edo Kaluski
Since the updated pulmonary hypertension (PH) guidelines published in 2015, two major landmark trials have provided additional insight regarding therapeutic algorithms of PH. In this review, we concisely summarized the key findings of peer‑reviewed studies published in the last one year in the field of PH. These studies have enhanced our therapeutic abilities by introducing a new potent agent, selexipag, and by demonstrating the advantage of upfront combination therapy (endothelin receptor antagonist and phosphodiesterase‑5 inhibitor) versus single agent therapy in group 1 PH...
February 2017: Minerva Cardioangiologica
https://www.readbyqxmd.com/read/27910015/chromosome-recognition
#8
Thomas S K Wan, Eleanor K C Hui, Margaret H L Ng
Chromosomal analysis of human cells serves to characterize aberrations of chromosome number and structure. Individual chromosome can be identified precisely by recognition of its morphological characteristics and staining patterns according to specific landmarks, regions, and bands as described in the ideogram. Since the quality of metaphases obtained from malignant cells is generally poor for karyotyping, a practical and accurate chromosome recognition training guide is mandatory for a trainee or newly employed cytogenetic technologist in a cancer cytogenetics laboratory...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/27909613/the-novel-laparoscopic-training-3d-model-in-urology-with-surgical-anatomic-remarks-fresh-frozen-cadaveric-tissue
#9
REVIEW
Emre Huri, Mehmet Ezer, Eddie Chan
Laparoscopic surgery is routinely used to treat many urological conditions and it is the gold standard treatment option for many surgeries such as radical nephrectomy. Due to the difficulty of learning, laparoscopic training should start outside the operating room. Although it is a very different model of laparoscopic training; the aim of this review is to show the value of human cadaveric model for laparoscopic training and present our experience in this area. Fresh frozen cadaveric model in laparoscopic training, dry lab, cadaveric model, animal models and computer based simulators are the most commonly used models for laparoscopic training...
December 2016: Turkish Journal of Urology
https://www.readbyqxmd.com/read/27909548/microvasculature-of-the-esophagus-and-gastroesophageal-junction-lesson-learned-from-submucosal-endoscopy
#10
REVIEW
Roberta Maselli, Haruhiro Inoue, Haruo Ikeda, Manabu Onimaru, Akira Yoshida, Esperanza Grace Santi, Hiroki Sato, Bu'Hussain Hayee, Shin-Ei Kudo
Advanced therapeutic endoscopy, in particular endoscopic mucosal resection, endoscopic submucosal dissection, per-oral endoscopic myotomy, submucosal endoscopic tumor resection opened a new era where direct esophageal visualization is possible. Combining these information with advanced diagnostic endoscopy, the esophagus is organized, from the luminal side to outside, into five layers (epithelium, lamina propria with lamina muscularis mucosa, submucosa, muscle layer, adventitia). A specific vascular system belonging to each layer is thus visible: Mucosa with the intra papillary capillary loop in the epithelium and the sub-epithelial capillary network in the lamina propria and, at the lower esophageal sphincter (LES) level with the palisade vessels; submucosa with the drainage vessels and the spindle veins at LES level; muscle layer with the perforating vessels; peri-esophageal veins in adventitia...
November 16, 2016: World Journal of Gastrointestinal Endoscopy
https://www.readbyqxmd.com/read/27909483/from-incidental-mechanically-induced-arrhythmias-to-reflex-defined-arrhythmogenicity-on-the-track-of-the-ternary-reflex-system-resemblance-to-the-infancy-of-new-era-or-rediscovery
#11
REVIEW
Petras Stirbys Md PhD
The underlying pathophysiology of supraventricular and ventricular arrhythmias remains a matter of intense investigation. Though evolving, the contemporary explanations do not encompass all aspects of arrhythmogenicity. An improved understanding of arrhythmia substrate is needed to augment therapeutic capabilities. Our observation and literature sources demonstrate relatively high incidence of transitory arrhythmias which are non-intentionally generated by the endocardial lead/catheter manipulation. These findings are interesting and potentially may crystallize the reflex-dependent proarrhythmic cardiac activity...
February 2016: Journal of Atrial Fibrillation
https://www.readbyqxmd.com/read/27909270/safe-introduction-of-ancillary-trocars-in-gynecological-surgery-the-yellow-island-anatomical-landmark
#12
Salvatore Giovanni Vitale, Nicola Gasbarro, Antonio Simone Lagana, Fabrizio Sapia, Agnese Maria Chiara Rapisarda, Gaetano Valenti, Maria Antonietta Trovato, Diego Rossetti, Benito Chiofalo, Giuseppina Barrasso, Andrea Tinelli, Francesco Corrado
AIM: This technical note aims to suggest a safe introduction of ancillary trocars in gynaecological surgery, in order to prevent inferior epigastric artery damage. MATERIAL OF STUDY: We performed a narrative overview, synthesizing the findings of literature retrieved from searches of computerized databases. RESULTS: Among the different techniques, the identification of the "yellow island" as anatomical landmark seems to be a useful aid to avoid complication...
November 18, 2016: Annali Italiani di Chirurgia
https://www.readbyqxmd.com/read/27908517/small-bowel-capsule-endoscopy-normal-findings-and-normal-variants-of-the-small-bowel
#13
REVIEW
Marco Pennazio, Emanuele Rondonotti, Anastasios Koulaouzidis
Small bowel capsule endoscopy (SBCE) remains the gold standard for practice for the diagnosis of small bowel disorders. A rather challenging task, for those who start to use this diagnostic modality, is the recognition of the typical anatomic landmarks and the distinction of normal small bowel anatomy from abnormal findings. The reader of SBCE images may also often encounter unusual views of the normal anatomy as well as various artifacts that need to be distinguished from pathologic findings. Experience gained through standard endoscopy is invaluable to the interpretation of capsule examinations; however, formalized training and credentialing in reading competency are essential...
January 2017: Gastrointestinal Endoscopy Clinics of North America
https://www.readbyqxmd.com/read/27908328/the-new-usual-care
#14
REVIEW
Jared Radbel, Daniel Boutsikaris
Recent literature continues to refine which components of the early goal-directed therapy (EGDT) algorithm are necessary. Given it utilizes central venous pressure, continuous central venous oxygen saturation, routine blood transfusions, and inotropic medications, this algorithm can be timely, invasive, costly, and potentially harmful. New trials highlight early recognition, early fluid resuscitation, appropriate antibiotic treatment, source control, and the application of a multidisciplinary evidence-based approach as essential components of current sepsis management...
February 2017: Emergency Medicine Clinics of North America
https://www.readbyqxmd.com/read/27908182/prostate-deformation-from-inflatable-rectal-probe-cover-and-dosimetric-effects-in-prostate-seed-implant-brachytherapy
#15
Jun Lian, Yeqin Shao, Larry D Potter, Ronald C Chen, Jordan A Holmes, Eleanor A Pryser, Jie Shen, Dinggang Shen, Andrew Z Wang
PURPOSE: Prostate brachytherapy is an important treatment technique for patients with localized prostate cancer. An inflatable rectal ultrasound probe cover is frequently utilized during the procedure to adjust for unfavorable prostate position relative to the implant grid. However, the inflated cover causes prostate deformation, which is not accounted for during dosimetric planning. Most of the therapeutic dose is delivered after the procedure when the prostate and surrounding organs-at-risk are less deformed...
December 2016: Medical Physics
https://www.readbyqxmd.com/read/27908160/correspondence-optimization-in-2d-standardized-carotid-wall-thickness-map-by-description-length-minimization-a-tool-for-increasing-reproducibility-of-3d-ultrasound-based-measurements
#16
Yimin Chen, Bernard Chiu
PURPOSE: The previously described 2D standardized vessel-wall-plus-plaque thickness (VWT) maps constructed from 3D ultrasound vessel wall measurements using an arc-length (AL) scaling approach adjusted the geometric variability of carotid arteries and has allowed for the comparisons of VWT distributions in longitudinal and cross-sectional studies. However, this mapping technique did not optimize point correspondence of the carotid arteries investigated. The potential misalignment may lead to errors in point-wise VWT comparisons...
December 2016: Medical Physics
https://www.readbyqxmd.com/read/27907238/an-assessment-of-how-facial-mimicry-can-change-facial-morphology-implications-for-identification
#17
Daniele Gibelli, Danilo De Angelis, Pasquale Poppa, Chiarella Sforza, Cristina Cattaneo
The assessment of facial mimicry is important in forensic anthropology; in addition, the application of modern 3D image acquisition systems may help for the analysis of facial surfaces. This study aimed at exposing a novel method for comparing 3D profiles in different facial expressions. Ten male adults, aged between 30 and 40 years, underwent acquisitions by stereophotogrammetry (VECTRA-3D(®) ) with different expressions (neutral, happy, sad, angry, surprised). The acquisition of each individual was then superimposed on the neutral one according to nine landmarks, and the root mean square (RMS) value between the two expressions was calculated...
December 1, 2016: Journal of Forensic Sciences
https://www.readbyqxmd.com/read/27906812/effect-of-cyclopentolate-on-in-vivo-schlemm-canal-microarchitecture-in-healthy-subjects
#18
Michael S Rosman, Alon Skaat, Jason L Chien, Mark P Ghassibi, Tarela F Sarimiye, Robert Ritch, Jeffrey M Liebmann, Sung Chul Park
PURPOSE: To characterize the in vivo effect of cyclopentolate on the microstructure of Schlemm canal (SC) in healthy eyes. METHODS: For healthy subjects, 81 serial horizontal enhanced depth imaging optical coherence tomography B-scans (interval between scans, ∼35 μm) of the nasal corneoscleral limbal area were obtained before and 1 hour after cyclopentolate 1% administration in 1 eye. The structures of aqueous and blood vessels in each scan were used as landmarks to select 50 overlapping scans between the 2 sets of 81 serial scans (before and after cyclopentolate administration)...
November 30, 2016: Journal of Glaucoma
https://www.readbyqxmd.com/read/27905028/landmark-guided-diffeomorphic-demons-algorithm-and-its-application-to-automatic-segmentation-of-the-whole-spine-and-pelvis-in-ct-images
#19
Shouhei Hanaoka, Yoshitaka Masutani, Mitsutaka Nemoto, Yukihiro Nomura, Soichiro Miki, Takeharu Yoshikawa, Naoto Hayashi, Kuni Ohtomo, Akinobu Shimizu
PURPOSE: A fully automatic multiatlas-based method for segmentation of the spine and pelvis in a torso CT volume is proposed. A novel landmark-guided diffeomorphic demons algorithm is used to register a given CT image to multiple atlas volumes. This algorithm can utilize both grayscale image information and given landmark coordinate information optimally. METHODS: The segmentation has four steps. Firstly, 170 bony landmarks are detected in the given volume. Using these landmark positions, an atlas selection procedure is performed to reduce the computational cost of the following registration...
November 30, 2016: International Journal of Computer Assisted Radiology and Surgery
https://www.readbyqxmd.com/read/27903338/-ultrasound-imaging-increases-first-attempt-success-rate-of-neuraxial-block-in-elderly-patients
#20
J Geng, X L Chen, X D Wang, X Y Guo, M Li
Objective: To verify whether preprocedural ultrasound of the lumbar spine could improve first-attempt success rate (defined as a successful neuraxial anesthesia with only one skin puncture) of neuraxial block in elderly patients. Methods: From septemble 2015 to February 2016, 200 elderly patients undergoing lower-limb surgery with neuraxial block at the Peking Universty Third Hospital were enrolled in this study.RandA 1.0 software was used to randomize patients into two groups: conventional surface landmark-guided group (group LM) and ultrasound-assisted group (group US)...
November 22, 2016: Zhonghua Yi Xue za Zhi [Chinese medical journal]
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