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https://www.readbyqxmd.com/read/29143283/evaluation-of-sequential-spect-and-ct-for-targeted-radionuclide-therapy-dosimetry
#1
Tiantian Li, Nien-Yun Wu, Na Song, Greta S P Mok
PURPOSE: In targeted radionuclide therapy (TRT), a prior knowledge of the absorbed dose biodistribution is essential for pre-therapy treatment planning. Previously, we showed that non-rigid organ-by-organ registration in sequential quantitative SPECT images improved dose estimation. This study aims to investigate if sequential CT can further improve TRT dosimetric accuracy. METHODS: We simulated SPECT/CT acquisitions at 1, 12, 24, 72 and 144 h In-111 Zevalin post-injection using an analytical MEGP projector, modeling attenuation, scatter and collimator-detector response...
November 15, 2017: Annals of Nuclear Medicine
https://www.readbyqxmd.com/read/29141881/it-s-not-all-black-and-white-visual-scene-parameters-influence-optokinetic-reflex-performance-in-xenopus-laevis-tadpoles
#2
Céline M Gravot, Alexander G Knorr, Stefan Glasauer, Hans Straka
The maintenance of visual acuity during active and passive body motion is ensured by gaze-stabilizing reflexes that aim at minimizing retinal image slip. For the optokinetic reflex (OKR), large-field visual motion of the surround forms the essential stimulus that activates eye movements. Properties of the moving visual world influence cognitive motion perception and the estimation of visual image velocity. Therefore, the performance of brainstem-mediated visuo-motor behaviors might also depend on image scene characteristics...
November 15, 2017: Journal of Experimental Biology
https://www.readbyqxmd.com/read/29131778/adventures-and-misadventures-in-plastic-surgery-and-soft-tissue-implants
#3
Dana J Lin, Tony T Wong, Gina A Ciavarra, Jonathan K Kazam
Soft-tissue augmentation and implants are increasingly seen by the radiologist as more techniques emerge for a variety of indications and locations. Some surgical and implant procedures are performed for purely cosmetic reasons in otherwise healthy patients seeking to improve their body image, and some are performed for reconstruction after cancer or other chronic illnesses. Abdominoplasty, liposuction, and autologous fat grafting can be performed for abdominal and gluteal contouring. Injection of liquid injectable silicone has historically been fraught with legal issues, although it continues to be used for augmentation in a variety of anatomic locations...
November 2017: Radiographics: a Review Publication of the Radiological Society of North America, Inc
https://www.readbyqxmd.com/read/29126283/surgical-management-of-penile-lesions-secondary-to-foreign-body-reaction-a-case-report-and-systematic-review
#4
Pedro L S Faveret, Fábio Santiago
Background: To improve the penile contour, some men choose to undergo implantation or injection of nonbiological materials. Foreign body reactions in penile tissue may produce scarring, deformity, ulceration, necrosis, and even gangrene. Consensus is lacking regarding the most effective surgical procedure for reconstruction of these penile lesions. Objectives: The authors describe one case study and the first systematic review focusing on reconstructive surgical management for penile lesions secondary to foreign body reaction...
November 6, 2017: Aesthetic Surgery Journal
https://www.readbyqxmd.com/read/29117298/long-term-quality-of-life-outcomes-after-body-contouring-surgery-phase-iv-results-for-the-body-qol%C3%A2-cohort
#5
Jaco Suijker, Ekaterina Troncoso, Francisca Pizarro, Sofia Montecinos, Galia Villarroel, Cristian Erazo, Juan Pablo Cisternas, Patricio Andrades, Susana Benítez, Sergio Sepúlveda, Stefan Danilla
Background: Body contouring surgery (BCS) is becoming increasing popular for aesthetic and reconstructive purposes, particularly among patients with massive weight loss (MWL). However, data on quality of life (QoL) following the surgery are limited, especially long-term QoL. Objectives: The authors evaluated the effect of BCS on QoL and the durability of this effect over time. Methods: QoL was measured with the Body-QoL® instrument at 3 time points among consecutively treated patients: the day before BCS, 1 to 9 months postoperatively (short term), and 1 to 2...
June 3, 2017: Aesthetic Surgery Journal
https://www.readbyqxmd.com/read/29108684/study-of-main-and-cross-over-effects-on-pressure-relief-among-body-mass-index-bmi-body-position-and-supporting-material-properties
#6
Chi-Leung Hui, Qilong Feng, M S Wong, Sau-Fun Ng, Yummy Y M Lin
Pressure ulcers influence people with limited mobility who must spend a long time lying or sitting because these positions create high interfacial pressure between the body and supporting materials. Supporting materials, such as mattresses and cushions, are designed to prevent pressure ulcers by increasing the contact area, reducing the interfacial pressure or reducing the contact time. Foam is the most common supporting material for relieving pressure because it is cheap and easy to change its shape to fit the contour of the body...
November 3, 2017: Medical Engineering & Physics
https://www.readbyqxmd.com/read/29108545/noninvasive-body-contouring-a-male-perspective
#7
REVIEW
Heidi Wat, Douglas C Wu, Mitchel P Goldman
Noninvasive body contouring is an attractive therapeutic modality to enhance the ideal male physique. Men place higher value on enhancing a well-defined, strong, masculine jawline and developing a V-shaped taper through the upper body. An understanding of the body contour men strive for allows the treating physician to focus on areas that are of most concern to men, thus enhancing patient experience and satisfaction. This article discusses noninvasive body contouring techniques, taking into account the unique aesthetic concerns of the male patient by combining an analysis of the existing literature with our own clinical experience...
January 2018: Dermatologic Clinics
https://www.readbyqxmd.com/read/29091629/temperature-characterization-of-a-radiating-gas-layer-using-digital-single-lens-reflex-camera-based-two-color-ratio-pyrometry
#8
Sneh Deep, Yedhu Krishna, Gopalan Jagadeesh
The two-color ratio pyrometry technique using a digital single-lens reflex camera has been used to measure the time-averaged and path-integrated temperature distribution in the radiating shock layer in a high-enthalpy flow. A 70 mm diameter cylindrical body with a 70 mm long spike was placed in a hypersonic shock tunnel, and the region behind the shock layer was investigated. The systematic error due to contributions from line emissions was corrected by monitoring the emission spectrum from this region using a spectrometer...
October 20, 2017: Applied Optics
https://www.readbyqxmd.com/read/29078969/studying-hardness-meter-spring-strength-to-understand-hardness-distribution-on-body-surfaces
#9
Yoshitaka Arima
INTRODUCTION: For developing a hardness multipoint measurement system for understanding hardness distribution on biological body surfaces, we investigated the spring strength of the contact portion main axis of a biological tissue hardness meter (product name: PEK). METHODS: We measured the hardness of three-layered sheets of six types of gel sheets (90 mm × 60 mm × 6 mm) constituting the acupuncture practice pads, with PEK measurements of 1.96 N, 2.94 N, 3...
October 2017: Journal of Acupuncture and Meridian Studies
https://www.readbyqxmd.com/read/29076457/investigating-the-generalisation-of-an-atlas-based-synthetic-ct-algorithm-to-another-centre-and-mr-scanner-for-prostate-mr-only-radiotherapy
#10
Jonathan Wyatt, Jason A Dowling, Charles G Kelly, Jill McKenna, Emily Johnstone, Richard Speight, Ann Henry, Peter B Greer, Hazel Mhairi McCallum
There is increasing interest in MR-only radiotherapy planning since it provides superb soft-tissue contrast without the registration uncertainties inherent in a CT-MR registration. However MR images cannot readily provide the electron density information necessary for radiotherapy dose calculation. An algorithm which generates synthetic CT's for dose calculations from MR images of the prostate using an atlas of 3 T MR images has been previously reported by two of the authors. This paper aimed to evaluate this algorithm using MR data acquired at a different field strength and a different centre to the algorithm atlas...
October 27, 2017: Physics in Medicine and Biology
https://www.readbyqxmd.com/read/29074467/vertebral-body-spread-in-thoracolumbar-burst-fractures-can-predict-posterior-construct-failure
#11
Federico De Iure, Giorgio Lofrese, Pasquale De Bonis, Michele Cappuccio, Francesco Cultrera, Sofia Battisti
BACKGROUND CONTEXT: The Load Sharing Classification (LSC) laid foundations for a scoring system able to indicate which thoracolumbar fractures, after short-segment posterior-only fixations, would need for longer instrumentations or additional anterior supports. PURPOSE: We analyzed surgically treated thoracolumbar fractures, quantifying the vertebral body's fragments displacement with the aim of identifying a new parameter which could predict the posterior-only construct failure...
October 23, 2017: Spine Journal: Official Journal of the North American Spine Society
https://www.readbyqxmd.com/read/29069882/reconstruction-of-the-foot-using-a-superficial-inferior-epigastric-artery-free-flap
#12
Jin Ho Han, Hyun Woo Shin, Kun Chul Yoon, June-Kyu Kim
When foot reconstruction is performed in the pretibial area, the ankle, or the dorsum of the foot, the need for a reliable flap remains a challenge. We found that the superficial inferior epigastric artery (SIEA) free flap can be used as an alternative tool for this purpose, as it helps to solve the problems associated with other flaps. We describe 2 cases in which we reconstructed the foot using an SIEA free flap, which was pliable enough to fit the contours of the area. Postoperatively, the flaps were intact and showed excellent aesthetic results...
October 26, 2017: Archives of Plastic Surgery
https://www.readbyqxmd.com/read/29064984/commentary-on-male-body-contouring
#13
COMMENT
Sue E Cox
No abstract text is available yet for this article.
November 2017: Dermatologic Surgery: Official Publication for American Society for Dermatologic Surgery [et Al.]
https://www.readbyqxmd.com/read/29062658/cosmetic-surgery-training-in-plastic-surgery-residency-programs
#14
Colton H L McNichols, Silviu Diaconu, Sara Alfadil, Jhade Woodall, Michael Grant, Scott Lifchez, Arthur Nam, Yvonne Rasko
BACKGROUND: Over the past decade, plastic surgery programs have continued to evolve with the addition of 1 year of training, increase in the minimum number of required aesthetic cases, and the gradual replacement of independent positions with integrated ones. To evaluate the impact of these changes on aesthetic training, a survey was sent to residents and program directors. METHODS: A 37 question survey was sent to plastic surgery residents at all Accreditation Council for Graduate Medical Education-approved plastic surgery training programs in the United States...
September 2017: Plastic and Reconstructive Surgery. Global Open
https://www.readbyqxmd.com/read/29062461/an-analysis-of-malpractice-litigation-and-expert-witnesses-in-plastic-surgery
#15
Paul J Therattil, Stella Chung, Aditya Sood, Mark S Granick, Edward S Lee
Objective: Expert witness testimony is crucial for juror decision making. The goals of this study were to examine the trends in malpractice litigation in plastic surgery and to examine the characteristics of expert witnesses in litigation. Methods: The Westlaw legal database was queried for jury verdict and settlement reports related to plastic surgery cases from 2009 to 2015. Cases were examined for expert witness testimony, procedure performed, alleged injury, cause of action, verdict, and indemnity payments...
2017: Eplasty
https://www.readbyqxmd.com/read/29057717/craniovertebral-fixation-%C3%A2-a-new-technique-of-occipital-cervical-fixation
#16
Sushil Patkar
BACKGROUND: Craniovertebral instability following transoral odontoid excision is usually treated by posterior occipital-cervical fixation using occipital plate and cervical lateral mass fixation with screw rod construct. A patient previously operated for basilar invagination had postoperative infection of both the transoral wound and the posterior implant site which needed removal of the posterior implant earlier. CLINICAL PRESENTATION: The patient presented with severe neck pain, myelopathy, and chronic discharging sinus in the posterior lower aspect the previous neck surgery wound...
October 23, 2017: Neurological Research
https://www.readbyqxmd.com/read/29055650/big-and-tall-does-a-height-premium-dwarf-an-obesity-penalty-in-the-labor-market
#17
Wang-Sheng Lee
Previous studies have shown that both height and weight are associated with wages. However, some gaps in our understanding of the relationship between body size and wages remain. For example, given a height premium and an obesity penalty, due to forces working in opposite directions, the current literature is unable to provide clear answers to questions such as whether a tall obese woman or a short healthy weight woman would earn a higher wage premium. Using Australian data and iso-contour wage curves derived from a semi-parametric wage regression model, this paper illustrates the complex nature of the relationship between height, weight and wages and how the nature of these differences depends on gender and age...
September 18, 2017: Economics and Human Biology
https://www.readbyqxmd.com/read/29050954/the-trendy-multi-center-randomized-trial-on-hepatocellular-carcinoma-trial-qa-including-automated-treatment-planning-and-benchmark-case-results
#18
Steven J M Habraken, Abdul Wahab M Sharfo, Jeroen Buijsen, Wilko F A R Verbakel, Cornelis J A Haasbeek, Michel C Öllers, Henrike Westerveld, Niek van Wieringen, Onne Reerink, Enrica Seravalli, Pètra M Braam, Markus Wendling, Thomas Lacornerie, Xavier Mirabel, Reinhilde Weytjens, Lieselotte Depuydt, Stephanie Tanadini-Lang, Oliver Riesterer, Karin Haustermans, Tom Depuydt, Roy S Dwarkasing, François E J A Willemssen, Ben J M Heijmen, Alejandra Méndez Romero
BACKGROUND AND PURPOSE: The TRENDY trial is an international multi-center phase-II study, randomizing hepatocellular carcinoma (HCC) patients between transarterial chemoembolization (TACE) and stereotactic body radiation therapy (SBRT) with a target dose of 48-54 Gy in six fractions. The radiotherapy quality assurance (QA) program, including prospective plan feedback based on automated treatment planning, is described and results are reported. MATERIALS AND METHODS: Scans of a single patient were used as a benchmark case...
October 16, 2017: Radiotherapy and Oncology: Journal of the European Society for Therapeutic Radiology and Oncology
https://www.readbyqxmd.com/read/29047458/recordings-of-caenorhabditis-elegans-locomotor-behaviour-following-targeted-ablation-of-single-motorneurons
#19
Yee Lian Chew, Denise S Walker, Emma K Towlson, Petra E Vértes, Gang Yan, Albert-László Barabási, William R Schafer
Lesioning studies have provided important insight into the functions of brain regions in humans and other animals. In the nematode Caenorhabditis elegans, with a small nervous system of 302 identified neurons, it is possible to generate lesions with single cell resolution and infer the roles of individual neurons in behaviour. Here we present a dataset of ~300 video recordings representing the locomotor behaviour of animals carrying single-cell ablations of 5 different motorneurons. Each file includes a raw video of approximately 27,000 frames; each frame has also been segmented to yield the position, contour, and body curvature of the tracked animal...
October 19, 2017: Scientific Data
https://www.readbyqxmd.com/read/29045557/the-suprapubic-dermoadipose-flap-for-aesthetic-reshaping-of-the-postpregnancy-abdomen
#20
Horacio F Mayer, Hugo D Loustau
Background: Postpregnancy full-length diastasis of the recti abdominis muscles is a common condition occasionally associated with atrophy of the subcutaneous fat located at the midline above and below the umbilicus. Objectives: The authors report a preliminary clinical experience with the suprapubic flap to prevent the late postoperative contour deformities of the postpregnancy abdomen. Methods: Between January 2005 and January 2015, all female patients undergoing abdominoplasty with the suprapubic flap were included in the present study...
October 14, 2017: Aesthetic Surgery Journal
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