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1.
Skin Res Technol ; 28(3): 472-479, 2022 May.
Artigo em Inglês | MEDLINE | ID: mdl-35416349

RESUMO

BACKGROUND: Facial massage is empirically known to be associated with morphological changes, such as improvements in facial sagging. However, quantified objective evaluations of massage-induced changes have not been performed to date. This preliminary pilot study aimed to verify the effectiveness of facial massages by using breakthrough computed tomographic technology. MATERIALS AND METHODS: Five healthy adult volunteers (three women and two men; age, 29-37 years) were enrolled, and computed tomography (CT) examinations using a 320 detectors-spiral CT system known as 320-multidetector-row CT (MDCT) were performed before and after facial massages. Each participant performed a self-massage twice daily for 2 weeks. Massage-induced changes in the cheeks and the superficial musculoaponeurotic system (SMAS) were analyzed by two radiologists on a workstation with a high-accuracy imaging analysis system. RESULTS: After facial massage, the malar top became thinner by -0.8% ± 0.45% and shifted cranially and horizontally over a distance of 3.9 ± 1.94 mm. The SMAS-height, defined as the highest vertical distance of the SMAS, increased by 2.6% ± 2.6%. The change rate in cheek thickness and SMAS-height showed a significant correlation (r = -0.63; P < 0.05). These changes were attributed to the lifting and tightening effects of facial massage. CONCLUSION: We conducted a detailed analysis of the effects of facial massages by using the breakthrough CT technology. Our results provide useful information for beauty treatments and could contribute to the collection of objective scientific evidence for facial massages.


Assuntos
Sistema Musculoaponeurótico Superficial , Adulto , Face/diagnóstico por imagem , Feminino , Humanos , Masculino , Massagem , Projetos Piloto , Tomografia Computadorizada por Raios X
2.
Skin Res Technol ; 27(6): 1057-1063, 2021 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-34032318

RESUMO

BACKGROUND: The effectiveness of facial massage is often explained by the resulting increases in the blood and lymphatic flow. However, it is difficult to explain the lifting effect on the cheeks. The aim of this study was to analyze facial mobility to further current understanding of the effectiveness of facial massage. MATERIALS AND METHODS: Two kinds of analytical methods were designed using a cadaveric head as well as advanced computed tomography (CT). The cadaveric face was divided into three sections, and three different colors of ink were injected into each section. It was kept in a supine position for 24 hours, and the ink distribution was observed. Upright and supine CT examinations were performed on six healthy adult volunteers. The images of both were superimposed by a three-dimensional image analysis system, and changes in facial contours were analyzed. RESULTS: The three colors of ink spread craniocaudally and were distributed differently from the gravitational vector. When both CT images were superimposed, two distinct lines were formed, which represented overlapping of the facial contours due to the two different CT images. These lines were found to correspond to the border of each color of the ink. CONCLUSION: Focusing on the mobility of the face, the soft tissue of the face had vertical mobility, and it was speculated that this mobility is involved in the effectiveness of facial massage. Our results could provide useful information for cosmetic treatment and contribute to the collection of scientific knowledge for anti-aging medicine.


Assuntos
Face , Imageamento Tridimensional , Adulto , Face/diagnóstico por imagem , Humanos , Massagem , Projetos Piloto , Tomografia Computadorizada por Raios X
3.
Arch Dermatol Res ; 313(10): 863-871, 2021 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-33550448

RESUMO

Platelet-rich plasma (PRP) showed positive results in the improvement of skin aging. Lyophilized PRP can be interesting in clinical practice due to the facility to obtain many samples in a single blood collection and can be used in multiple injections. To evaluate the effect of lyophilized PRP in the treatment of skin aging, through a Phase II pilot study. Nineteen women (54 years ± 7 years) with Glogau photoaging II and III types were select for this non-randomized, split-face controlled study. They received monthly intradermal injections of lyophilized PRP and saline solution (as control) into the facial skin, during a period of 2 months. The evaluation was performed by imaging method, histological techniques, and multiphoton microscopy. Although lyophilized PRP presented 10 times the platelet baseline value (P < .0001) and growth factors in adequate levels, only saline solution showed an increase of dermis thickness (p = .0009). Collagen pre and post-application remained the same for both types of treatments. The use of lyophilized PRP by mesotherapy showed no improvement on skin aging. TRIAL REGISTRATION APPROVAL: RBR-3n9wxw, UTN U1111-1226-6093-retrospectively registered.


Assuntos
Mesoterapia/métodos , Plasma Rico em Plaquetas , Envelhecimento da Pele , Colágeno/análise , Face/diagnóstico por imagem , Feminino , Humanos , Injeções Intradérmicas , Pessoa de Meia-Idade , Fotografação , Projetos Piloto , Rejuvenescimento , Pele/química , Pele/diagnóstico por imagem , Resultado do Tratamento
4.
Artigo em Inglês | LILACS, BBO | ID: biblio-1155002

RESUMO

ABSTRACT Objctive: To assess the soft tissue characteristics of Bangladeshi adults to formulate soft tissue 3D CT standards using Holdaway's (HA) and lip morphology (LM) analyses. Another aim of this study was to assess the gender dimorphism of Bangladeshi population. Material and Methods: One hundred and seventeen (Eighty-five men and Thirty-two women) Bangladeshi adults have obtained their computed tomography (CT) scan at the Radiology Department for normal diagnosis. Craniofacial deformities were undetected in all cases. The CT images were prepared by a 3D imaging programming software (Mimics 11.02 Materialise). Parameters from the identified landmark points were measured in 3D through this software. Results: Upper lip thickness (ULT) (vermillion UL-A point) measurement was significant in HA and in LM analyses, upper lip protrusion (ULP) (Ls to Sn-SPog) measurement has demonstrated significant difference among both genders, where p-value was less than 0.05. Mean measurements of Bangladeshi adults were relatively comparable except the face convexity (FC) when compared with the HA cephalometric soft tissue values. Conclusion: By using HA and LM analyses, 3D CT soft tissue standards were established for Bangladeshi adults. Measurements for all parameters have remained equivalent with the HA standard data apart from the FC measurement. This consequently may demonstrate that the Bangladeshi population retains a convex shape with a slight protrusive lip or retruded chin.


Assuntos
Humanos , Masculino , Feminino , Adulto , Ortodontia Corretiva , Crânio/diagnóstico por imagem , Diagnóstico por Imagem/instrumentação , Anormalidades Craniofaciais/diagnóstico por imagem , Face/diagnóstico por imagem , Terapia de Tecidos Moles , Bangladesh/epidemiologia , Tomografia Computadorizada por Raios X/instrumentação , Estudos Transversais , Estudos Transversais/métodos , Estudos Retrospectivos , Interpretação Estatística de Dados , Caracteres Sexuais
5.
J Drugs Dermatol ; 19(12): 1209-1214, 2020 Dec 01.
Artigo em Inglês | MEDLINE | ID: mdl-33346522

RESUMO

Skin activities follow endogenous circadian rhythms resulting in differences between daytime and nighttime properties. To address the variations in skin needs, a novel circadian-based dual serum system (LVS) was developed. A 12-week, double-blind, randomized, regimen-controlled, multi-center study was conducted to assess the efficacy and tolerability of LVS on subjects presenting with moderate-severe photodamage. 61 Female subjects (36–65 years; Fitzpatrick skin types I–VI) completed the study. The active group received LVS (daytime serum and nighttime serum) and basic skin care regimen (moisturizer and SPF 35 sunscreen), while the control group received the basic skin care regimen only. In addition to clinical grading, subject self-assessment questionnaires, and standardized photography, punch biopsies were taken in a subset of subjects for immunohistochemistry. Additionally, swab samples were taken for skin surface oxidation analysis. Significant improvements over control were observed in the active group in Radiance (weeks 4, 8, and 12), Overall Photodamage, Tactile Toughness, and Global Fine Lines/Wrinkles (week 12). Biopsy results, skin swab analysis and standardized photographs support the clinical grading findings. At all follow-up visits, LVS was consistently highly rated over control by subjects, with a significant proportion of subjects agreeing at week 12 that LVS “improved the radiance of my skin,” and “improved the overall health and look of my skin”. Results from this study suggest that LVS may provide essential protective and reparative effects to skin exposed to the damaging effects of environmental factors, and also demonstrates the value of including skin circadian rhythm-based concepts in a topical skincare regimen. J Drugs Dermatol. 2020;19(12): doi:10.36849/JDD.2020.5355.


Assuntos
Antioxidantes/administração & dosagem , Cronofarmacoterapia , Envelhecimento da Pele/efeitos dos fármacos , Higiene da Pele/métodos , Pele/efeitos dos fármacos , Administração Cutânea , Adulto , Idoso , Antioxidantes/efeitos adversos , Biópsia , Autoavaliação Diagnóstica , Método Duplo-Cego , Face/diagnóstico por imagem , Feminino , Seguimentos , Humanos , Pessoa de Meia-Idade , Fotografação , Fotoperíodo , Pele/diagnóstico por imagem , Pele/patologia , Higiene da Pele/efeitos adversos , Resultado do Tratamento
6.
Skin Res Technol ; 26(3): 349-355, 2020 May.
Artigo em Inglês | MEDLINE | ID: mdl-31793684

RESUMO

BACKGROUND/PURPOSE: This study proposes a technique for visualizing the effect of facial massage using stereo-image correlation with melanin pigment. METHOD: In this method, the melanin pigment of a subject's face is made visible by using an ultraviolet light and utilized as a random pattern for stereo-image correlation. Stereo-pair images of the face with the melanin pigment before and after facial massage are recorded using a desk-sized measurement equipment. Then, the deformation of the face by the massage can be obtained based on the principle of stereovision. The effectiveness of the proposed method is demonstrated by applying it to the massage effect evaluation of eight subjects (females in their 40s). RESULTS: The results show that the massage effect can be visualized from the displacement and strain distributions across the face obtained by the proposed method. In addition, it is observed that the face is displaced significantly by the massage and individual differences between the subjects can be captured. CONCLUSION: The proposed method is effective for evaluating the effect of a facial massage when the painted pattern disappears due to the applied cream during the massage.


Assuntos
Face/diagnóstico por imagem , Imageamento Tridimensional/instrumentação , Massagem/efeitos adversos , Raios Ultravioleta/efeitos adversos , Adulto , Face/anatomia & histologia , Feminino , Humanos , Interpretação de Imagem Assistida por Computador/métodos , Melaninas/efeitos da radiação , Fotografação/métodos , Pigmentação da Pele/fisiologia
7.
Sci Rep ; 9(1): 4729, 2019 03 18.
Artigo em Inglês | MEDLINE | ID: mdl-30894584

RESUMO

Thermal Imaging (Infrared-Imaging-IRI) is a promising new technique for psychophysiological research and application. Unlike traditional physiological measures (like skin conductance and heart rate), it is uniquely contact-free, substantially enhancing its ecological validity. Investigating facial regions and subsequent reliable signal extraction from IRI data is challenging due to head motion artefacts. Exploiting its potential thus depends on advances in analytical methods. Here, we developed a novel semi-automated thermal signal extraction method employing deep learning algorithms for facial landmark identification. We applied this method to physiological responses elicited by a sudden auditory stimulus, to determine if facial temperature changes induced by a stimulus of a loud sound can be detected. We compared thermal responses with psycho-physiological sensor-based tools of galvanic skin response (GSR) and electrocardiography (ECG). We found that the temperatures of selected facial regions, particularly the nose tip, significantly decreased after the auditory stimulus. Additionally, this response was quite rapid at around 4-5 seconds, starting less than 2 seconds following the GSR changes. These results demonstrate that our methodology offers a sensitive and robust tool to capture facial physiological changes with minimal manual intervention and manual pre-processing of signals. Newer methodological developments for reliable temperature extraction promise to boost IRI use as an ecologically-valid technique in social and affective neuroscience.


Assuntos
Estimulação Acústica , Aprendizado Profundo , Face/fisiologia , Algoritmos , Temperatura Corporal , Eletrocardiografia , Face/diagnóstico por imagem , Resposta Galvânica da Pele , Humanos , Projetos de Pesquisa/normas , Espectroscopia de Luz Próxima ao Infravermelho/métodos
8.
J Cosmet Dermatol ; 18(4): 985-995, 2019 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-30350908

RESUMO

BACKGROUND: During skin aging, a degeneration of connective tissue and decrease in hyaluronic acid polymers occur. Since platelet-rich plasma (PRP) contains growth factors and various cytokines, it was hypothesized that it could play a role in fibroblast activation and type I collagen expression in human fibroblasts. OBJECTIVES: This study was performed to assess the efficacy of autologous PRP injections for facial skin rejuvenation, measured by biometric instrumental evaluations and patient-reported outcomes. PATIENTS AND METHODS: Patients signed an informed consent form. The EmCyte PurePRP® system technology was used to produce neutrophil-poor PurePRP. The efficacy of the procedures was assessed by biometric parameters, and a patient outcome a self-assessment questionnaire on each visit and at 6-month follow-up. RESULTS: Eleven volunteers were included in the study, receiving 3 PurePRP® treatments. A significant decrease in brown spot counts and area (P < 0.05) was seen after 3 months. Wrinkle count and volume were significantly reduced (P < 0.05 for total wrinkle appearance). Skin firmness parameters were significantly improved. Skin redness was significantly improved after 169 days post-therapy for both the nasolabial and malar areas. A decrease in SLEB thickness was already noted at 2 months after the first injection, with an increase in SLEB density (P < 0.05 for both parameters), without affecting subcutaneous fat thickness. Self-assessment at 6-month follow-up revealed an average satisfaction score of >90%. CONCLUSIONS: A series of 3 PurePRP injections at 6-month follow-up resulted in significant skin rejuvenation as demonstrated by biometric parameters and confirmed by patient self-assessment score.


Assuntos
Transfusão de Sangue Autóloga/métodos , Técnicas Cosméticas , Plasma Rico em Plaquetas/fisiologia , Rejuvenescimento/fisiologia , Envelhecimento da Pele/fisiologia , Face/diagnóstico por imagem , Feminino , Seguimentos , Voluntários Saudáveis , Humanos , Injeções Intradérmicas , Pessoa de Meia-Idade , Medidas de Resultados Relatados pelo Paciente , Satisfação do Paciente , Pele/diagnóstico por imagem , Ultrassonografia
9.
J Prosthet Dent ; 120(2): 177-180, 2018 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-29551384

RESUMO

After a stroke, patients frequently show compromised swallowing, mastication, and speech, as well as unfavorable motion and deviation of the tongue and mandible. The dentist can improve the oral rehabilitation of a patient with deteriorated facial and oral muscles after a stroke by incorporating orofacial myofunctional therapy. This report describes a method for tongue exercises and correction of mandible deviation in an edentulous patient after a stroke by using a pearl on a wire in the anteriomedian palatal part of the maxillary denture.


Assuntos
Prótese Total , Arcada Edêntula/reabilitação , Arcada Edêntula/terapia , Terapia Miofuncional/métodos , Acidente Vascular Cerebral/terapia , Idoso , Cefalometria , Deglutição/fisiologia , Planejamento de Dentadura , Estética Dentária , Face/diagnóstico por imagem , Humanos , Arcada Osseodentária/diagnóstico por imagem , Arcada Osseodentária/fisiopatologia , Arcada Edêntula/diagnóstico por imagem , Masculino , Má Oclusão/diagnóstico por imagem , Má Oclusão/terapia , Mastigação/fisiologia , Terapia Miofuncional/instrumentação , Fala/fisiologia , Língua/fisiopatologia , Resultado do Tratamento
10.
Skin Res Technol ; 23(3): 369-375, 2017 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-27878850

RESUMO

BACKGROUND/PURPOSE: Photograph-based visual scoring has been used for evaluation of facial morphological changes. Here, we describe a three-dimensional computed tomography (3D-CT) method for objective analysis of facial and intra-facial (subcutaneous) changes. The effects of facial massage were examined using both methods. METHODS: Subjects were 12 healthy female volunteers without facial scars or deformation (age 30-54 years, mean 39.4 years). Photograph-based scoring of massage-induced morphological changes was done at the nasolabial folds, upper, lower and lateral cheeks and lower eyelids. For 3D-CT evaluation, the virtual center axis (VCA) was set as the cranio-caudal longitudinal line, and the VCA-skin surface distances (VSDs) were measured. Massage-induced changes of VSD were calculated (facial massage-induced change rate, FMCR). Intra-facial (subcutaneous) changes were also evaluated. RESULTS: Photograph-based scoring revealed marked morphological changes of the nasolabial folds after facial massage, and changes of the lower, upper and lateral cheeks and lower eyelid were also observed in more than half of the subjects. FMCR values were significantly changed in the paranasal area, nasolabial fold area and cranial part of the mandibular area. Photograph-based scores at the lower cheek and lower eyelid were well correlated with FMCR in the inferior part of the nasolabial fold and the mandibular area, respectively. Massage-induced changes of subcutaneous fat tissues and facial expression muscles were also apparent on CT images. CONCLUSION: 3D-CT imaging is useful for objective evaluation of the effects of facial massage, including anatomical changes in subcutaneous structures.


Assuntos
Face/anatomia & histologia , Face/diagnóstico por imagem , Massagem/efeitos adversos , Tomografia Computadorizada por Raios X/métodos , Adulto , Povo Asiático/etnologia , Bochecha/anatomia & histologia , Bochecha/diagnóstico por imagem , Músculos Faciais/anatomia & histologia , Músculos Faciais/fisiologia , Feminino , Humanos , Imageamento Tridimensional , Massagem/métodos , Pessoa de Meia-Idade , Sulco Nasogeniano/anatomia & histologia , Sulco Nasogeniano/diagnóstico por imagem , Fotografação/métodos , Tela Subcutânea/anatomia & histologia , Tela Subcutânea/diagnóstico por imagem
11.
J Clin Ultrasound ; 44(7): 459-62, 2016 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-27312123

RESUMO

A fetal sonographic screening examination performed at 23 weeks showed polyhydramnios, micrognathia, fixed postures of all long bones, but no movement and no breathing. The fetus showed fetal heart rate acceleration but no movement when acoustic stimulation was applied with artificial larynx. All these findings persisted on serial examinations. The neonate was stillborn at 37 weeks and a final diagnosis of Pena-Shokeir sequence was made. In addition to typical sonographic features of Pena-Shokeir sequence, fetal heart rate accelerations with no movement in response to acoustic stimulation suggests that peripheral myopathy may possibly play an important role in the pathogenesis of the disease. © 2016 Wiley Periodicals, Inc. J Clin Ultrasound 44:459-462, 2016.


Assuntos
Estimulação Acústica/métodos , Osso e Ossos/anormalidades , Anormalidades do Olho/diagnóstico por imagem , Face/anormalidades , Ultrassonografia Pré-Natal/métodos , Adulto , Osso e Ossos/diagnóstico por imagem , Face/diagnóstico por imagem , Feminino , Humanos , Gravidez , Natimorto
12.
IEEE Trans Pattern Anal Mach Intell ; 38(3): 518-31, 2016 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-27046495

RESUMO

To perform unconstrained face recognition robust to variations in illumination, pose and expression, this paper presents a new scheme to extract "Multi-Directional Multi-Level Dual-Cross Patterns" (MDML-DCPs) from face images. Specifically, the MDML-DCPs scheme exploits the first derivative of Gaussian operator to reduce the impact of differences in illumination and then computes the DCP feature at both the holistic and component levels. DCP is a novel face image descriptor inspired by the unique textural structure of human faces. It is computationally efficient and only doubles the cost of computing local binary patterns, yet is extremely robust to pose and expression variations. MDML-DCPs comprehensively yet efficiently encodes the invariant characteristics of a face image from multiple levels into patterns that are highly discriminative of inter-personal differences but robust to intra-personal variations. Experimental results on the FERET, CAS-PERL-R1, FRGC 2.0, and LFW databases indicate that DCP outperforms the state-of-the-art local descriptors (e.g., LBP, LTP, LPQ, POEM, tLBP, and LGXP) for both face identification and face verification tasks. More impressively, the best performance is achieved on the challenging LFW and FRGC 2.0 databases by deploying MDML-DCPs in a simple recognition scheme.


Assuntos
Identificação Biométrica/métodos , Face/anatomia & histologia , Face/diagnóstico por imagem , Processamento de Imagem Assistida por Computador/métodos , Algoritmos , Humanos , Análise de Componente Principal
13.
J Oral Maxillofac Surg ; 74(6): 1198.e1-9, 2016 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-27000411

RESUMO

Clinicians face numerous challenges when managing psychiatric patients who self-inflict injuries within the maxillofacial region. In addition to a complex clinical examination, there are both surgical and psychiatric factors to consider, such as the risk of damaging vital structures, the exacerbation of the patient's psychiatric status, and the long-term psychosocial and esthetic sequelae. We present 2 cases of adolescents who repeatedly self-inflicted wounds and/or inserted foreign bodies (FBs) into the face, scalp, and neck. The different treatment modalities were based on full evaluation of the patient's clinical, medical, and diagnostic test findings coupled with a psychiatric assessment. The decision for conservative management or surgical intervention was made according to the presence and location of the FBs, degree of hemorrhage, signs and symptoms of infection, and unpleasant scars that could lead to long-term psychological impairment. In most cases, the FBs were removed and the wounds were toileted and closed under local or general anesthesia. We advocate a holistic approach via a multidisciplinary team, which is deemed essential to provide the highest quality of care for patients to reduce the risk of further relapses. Lastly, a satisfactory esthetic outcome is always paramount to achieve long-term psychological and physical welfare.


Assuntos
Traumatismos Maxilofaciais/cirurgia , Comportamento Autodestrutivo/terapia , Adolescente , Face/diagnóstico por imagem , Face/cirurgia , Feminino , Corpos Estranhos/diagnóstico por imagem , Corpos Estranhos/cirurgia , Cabeça/diagnóstico por imagem , Cabeça/cirurgia , Humanos , Maxila/diagnóstico por imagem , Maxila/cirurgia , Traumatismos Maxilofaciais/diagnóstico por imagem , Traumatismos Maxilofaciais/psicologia , Radiografia , Comportamento Autodestrutivo/cirurgia , Adulto Jovem
14.
IEEE Trans Image Process ; 25(3): 1163-76, 2016 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-26761775

RESUMO

Over the past three decades, a number of face recognition methods have been proposed in computer vision, and most of them use holistic face images for person identification. In many real-world scenarios especially some unconstrained environments, human faces might be occluded by other objects, and it is difficult to obtain fully holistic face images for recognition. To address this, we propose a new partial face recognition approach to recognize persons of interest from their partial faces. Given a pair of gallery image and probe face patch, we first detect keypoints and extract their local textural features. Then, we propose a robust point set matching method to discriminatively match these two extracted local feature sets, where both the textural information and geometrical information of local features are explicitly used for matching simultaneously. Finally, the similarity of two faces is converted as the distance between these two aligned feature sets. Experimental results on four public face data sets show the effectiveness of the proposed approach.


Assuntos
Identificação Biométrica/métodos , Face/anatomia & histologia , Face/diagnóstico por imagem , Processamento de Imagem Assistida por Computador/métodos , Bases de Dados Factuais , Feminino , Humanos , Masculino
15.
Dermatol Surg ; 39(11): 1630-6, 2013 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-24131329

RESUMO

BACKGROUND: High-resolution ultrasound (HRU) imaging is a useful tool to study hyaluronic acid (HA) filler injected in the face. OBJECTIVE: To observe real-time injection of HA using HRU and describe behavior of the gel injection in various anatomic layers and the effect of massage. METHODS: Deep (preperiosteal), intermediate (subdermal), and superficial (dermal) injections of HA were performed in the supraclavicular area under ultrasonography visualization on a healthy volunteer. Videos were obtained during injection and static images at several time points, including during injection, immediately after injection, 5 minutes after massage of the treated area, and at 2 weeks after injection. RESULTS: During injection, dermally injected HA stayed within the dermis, increasing its echogenicity; subdermally injected HA formed multiple anechoic pearls; and preperiosteal HA produced a single anechoic bubble with diffuse margins. No vertical transection of the planes was observed during injection or after massage. Two-week postinjection imaging showed persistence of the varying HA morphology in each plane. CONCLUSIONS: High-resolution ultrasound allows in vivo study of HA injection behavior. HA adopts different morphology within the tissue depending on the density and compliance of the tissues in the plane of injection.


Assuntos
Técnicas Cosméticas , Fármacos Dermatológicos/uso terapêutico , Ácido Hialurônico/administração & dosagem , Materiais Biocompatíveis , Face/diagnóstico por imagem , Géis , Humanos , Injeções Intradérmicas , Projetos Piloto , Ultrassonografia/métodos
16.
J Oral Maxillofac Surg ; 71(7): 1261-7, 2013 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-23566694

RESUMO

PURPOSE: To evaluate the effectiveness of systemic enzyme therapy for the control of edema in patients who undergo bimaxillary orthognathic surgery. MATERIALS AND METHODS: Thirty patients were included in this double-blinded, randomized, control trial. Before surgery, each patient was allotted a code (study or control group). Nine anthropometric points were selected. Thickness of the soft tissue at each of these points was measured using an ultrasound device. These measurements were performed on the day before surgery and 1, 5, and 15 days after surgery. The study group was given a twice-daily dose of systemic enzyme therapy from the first postoperative day for 5 days; the control group was given placebo. The percentage of difference in the thickness of the soft tissue was calculated at each of the 9 points on postoperative days 1, 5, and 15. These data were analyzed and compared using the Mann-Whitney test. RESULTS: The statistical evaluation showed a significant difference in soft tissue thickness between the 2 groups, especially on days 5 and 15, at most assessed points. CONCLUSION: The results of this study suggest that systemic enzyme therapy significantly decreases postoperative edema in orthognathic surgery, precluding long-term corticosteroid use.


Assuntos
Edema/prevenção & controle , Endopeptidases/uso terapêutico , Terapia Enzimática/métodos , Face , Procedimentos Cirúrgicos Ortognáticos/métodos , Complicações Pós-Operatórias/prevenção & controle , Rutina/uso terapêutico , Bromelaínas/uso terapêutico , Cefalometria/métodos , Queixo/diagnóstico por imagem , Queixo/cirurgia , Método Duplo-Cego , Combinação de Medicamentos , Edema/diagnóstico por imagem , Face/diagnóstico por imagem , Feminino , Seguimentos , Humanos , Lábio/diagnóstico por imagem , Masculino , Mandíbula/diagnóstico por imagem , Pescoço/diagnóstico por imagem , Osteotomia de Le Fort/métodos , Osteotomia Sagital do Ramo Mandibular/métodos , Placebos , Complicações Pós-Operatórias/diagnóstico por imagem , Pré-Medicação , Estudos Prospectivos , Resultado do Tratamento , Tripsina/uso terapêutico , Ultrassonografia , Adulto Jovem
17.
J Acoust Soc Am ; 129(6): 4014-22, 2011 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-21682422

RESUMO

Understanding how the human speech production system is related to the human auditory system has been a perennial subject of inquiry. To investigate the production-perception link, in this paper, a computational analysis has been performed using the articulatory movement data obtained during speech production with concurrently recorded acoustic speech signals from multiple subjects in three different languages: English, Cantonese, and Georgian. The form of articulatory gestures during speech production varies across languages, and this variation is considered to be reflected in the articulatory position and kinematics. The auditory processing of the acoustic speech signal is modeled by a parametric representation of the cochlear filterbank which allows for realizing various candidate filterbank structures by changing the parameter value. Using mathematical communication theory, it is found that the uncertainty about the articulatory gestures in each language is maximally reduced when the acoustic speech signal is represented using the output of a filterbank similar to the empirically established cochlear filterbank in the human auditory system. Possible interpretations of this finding are discussed.


Assuntos
Vias Auditivas/fisiologia , Face/fisiologia , Gestos , Idioma , Modelos Teóricos , Processamento de Sinais Assistido por Computador , Percepção da Fala , Medida da Produção da Fala , Estimulação Acústica , Fenômenos Biomecânicos , Simulação por Computador , Face/diagnóstico por imagem , Feminino , Humanos , Masculino , Radiografia , Espectrografia do Som , Fatores de Tempo
18.
Dentomaxillofac Radiol ; 35(6): 473-4, 2006 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-17082343

RESUMO

Susuk, or charm needles, are inserted and worn subcutaneously in the face and other parts of the body, as they are believed to enhance beauty and youth, and for many other reasons such as treatment of headache, aches and pains in the joints, back or abdomen. The practice of inserting susuk is a traditional belief, genuinely cultural and superstitious, and common in the south-east Asian region. We present 13 cases of susuk, which was found incidentally on the radiographs as the patients came for various types of treatment at our centre.


Assuntos
Face , Corpos Estranhos/diagnóstico por imagem , Boca , Técnicas Cosméticas , Face/diagnóstico por imagem , Humanos , Malásia , Medicina Tradicional , Boca/diagnóstico por imagem , Agulhas , Radiografia Panorâmica , Religião e Medicina
19.
J Plast Reconstr Aesthet Surg ; 59(6): 662-74, 2006.
Artigo em Inglês | MEDLINE | ID: mdl-16817261

RESUMO

This disease was first described by von Recklinghausen and Festscher and has been known as the von Recklinghausen's disease or neurofibromatosis (NF). Numerous articles have been published on this subject where majority of the authors have stressed their difficulty in achieving favourable surgical results. This disease is pathologically accepted to be of neuroectodermal origin with a positive family history in approximately 50% of the cases, autosomal dominant trait and is known to involve the periorbital regions, orbit (preoperative CT scan: upper left and right photographs), temporal region to a variable extent, mid-facial region to the mandibular region. The indicated treatment for this disease is surgery including cranio-maxillofacial surgery even though re-evaluation of the conventional methods of surgery should be considered. This particular case is an extremely difficult and challenging case for any reconstructive plastic surgeon and required extensive preoperative planning. The systematic multiple stage surgical approach for an extremely severe von Recklinghausen's disease, elephantiasis neurofibromatosa is presented and discussed in detail.


Assuntos
Face/cirurgia , Neoplasias Faciais/cirurgia , Neurofibroma Plexiforme/cirurgia , Neurofibromatose 1/cirurgia , Procedimentos de Cirurgia Plástica/métodos , Anestesia Geral/métodos , Anestesia Local/métodos , Bochecha/cirurgia , Sobrancelhas , Face/diagnóstico por imagem , Neoplasias Faciais/diagnóstico por imagem , Neoplasias Faciais/patologia , Feminino , Humanos , Lábio/cirurgia , Pessoa de Meia-Idade , Neurofibroma Plexiforme/diagnóstico por imagem , Neurofibroma Plexiforme/patologia , Neurofibromatose 1/diagnóstico por imagem , Neurofibromatose 1/patologia , Nariz/cirurgia , Órbita/cirurgia , Cuidados Pré-Operatórios/métodos , Tomografia Computadorizada por Raios X/métodos , Resultado do Tratamento
20.
Laryngol Rhinol Otol (Stuttg) ; 55(7): 575-80, 1976 Jul.
Artigo em Alemão | MEDLINE | ID: mdl-184356

RESUMO

Indirect lymphography is shown to be a technically uncomplicated and easy to use method of displaying the lymph nodes and -vessels of the face and neck regions. "Lipiodol-Ultra-Fluid" an oily contrast medium which has used in experiments with minipigs can be radiologically and histologically demonstrated in nodes for months. The histological findings in the course of a year are, at the beginning a phase of non-specific reaction followed by a phase of granulomatous reaction between two weeks and six weeks and finally a third phase where in the medium is stored virtually without histological reaction and is only reduced very slowly. Irreversible destruction of lymph-node structure as not infrequently follows the direct method - due to high-pressure application of the fluid was not evident. It may be assumed that disturbance of lymph node function or changes in lymph flow do not follow the application of the indirect method of lymphography.


Assuntos
Face/diagnóstico por imagem , Linfonodos/efeitos dos fármacos , Linfografia/métodos , Pescoço/diagnóstico por imagem , Animais , Meios de Contraste , Óleo Iodado/farmacologia
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