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1.
Support Care Cancer ; 32(2): 105, 2024 Jan 15.
Artigo em Inglês | MEDLINE | ID: mdl-38221586

RESUMO

PURPOSE: To inform bra design by analyzing 3D surface images of breast cancer patients who underwent autologous breast reconstruction. METHODS: We computed bra design measurements on 3D surface images of patients who underwent unilateral and bilateral autologous breast reconstruction. Breast measurements and right-left symmetry between preoperative baseline and postoperative time points were compared using either paired Student t-test or Wilcoxon signed-rank test, depending on the data's distribution. Regression analysis determined associations between measurements and patient characteristics such as age. Postoperative measurements and symmetry differences were also compared between autologous and implant-based breast reconstruction. RESULTS: Among participants who underwent bilateral autologous breast reconstruction, the reconstructed breasts were smaller and positioned higher on the chest wall than their native breasts. For patients who underwent unilateral reconstruction, similar postoperative changes were observed in the contralateral breast due to symmetry procedures. Overall, for participants whose baseline breast measurements showed substantial asymmetry, unilateral reconstruction decreased right-left asymmetry whereas bilateral reconstruction amplified right-left asymmetry. Preoperative baseline breast measurements, age, and BMI were statistically significantly associated with most postoperative breast measurements for participants who underwent bilateral autologous reconstruction. Compared to implant-based reconstruction, autologous reconstruction resulted in fewer changes in breast shape and symmetry that are pertinent to bra fit. CONCLUSION: Preoperative baseline breast measurements, age, and BMI can impact bra designs for breast cancer survivors who undergo autologous reconstruction due to size, shape, and symmetry changes. Bra needs of people who undergo autologous reconstruction differ from those who undergo implant-based reconstruction.


Assuntos
Neoplasias da Mama , Mamoplastia , Humanos , Feminino , Mastectomia/métodos , Mamoplastia/métodos , Mama/cirurgia , Neoplasias da Mama/cirurgia , Análise de Regressão
2.
Ergonomics ; 66(10): 1521-1533, 2023 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-36524380

RESUMO

Comfortable and well-fitting bras are necessary for good quality of life but hard to find for women who undergo reconstruction after breast cancer treatment. This study aimed to provide data to inform bra designs for breast cancer survivors. We measured anatomical distances used in bra design on 3D clinical photographs of patients who underwent unilateral and bilateral implant-based reconstruction to quantify changes after reconstruction relative to the measured values before the person underwent surgery. We performed additional assessments of symmetry before surgery and after reconstruction, and we used regression analyses to identify associations between the measurements and patient characteristics, such as BMI. Overall, almost all measurements changed significantly in implant-based reconstructed breasts relative to native breasts. We highlight several aspects of ergonomic bra design that will be impacted by the changes in anatomical distances. Practitioner summary: Implant-based breast reconstruction surgery changes the breast so that off-the-rack bras are inadequate. This study provides designers with measurement data from women who underwent implant-based reconstruction to inform bra designs for this population. The key factor designers need to account for is the semi-spherical shape of the reconstructed breast.


Assuntos
Neoplasias da Mama , Mamoplastia , Feminino , Humanos , Qualidade de Vida , Mama/cirurgia , Neoplasias da Mama/cirurgia
3.
Palliat Support Care ; : 1-8, 2023 Mar 30.
Artigo em Inglês | MEDLINE | ID: mdl-36994832

RESUMO

OBJECTIVES: Body image adjustment is a crucial issue for patients with facial cancer, but body image-specific interventions are scarce. We report results of a novel psychotherapeutic intervention to address body image concerns during acute postoperative recovery following facial reconstructive surgery. Our primary aims were to evaluate the intervention's feasibility, acceptability, and efficacy on body image concerns, psychological distress, and quality of life (QOL). METHODS: Adults with facial cancers who endorsed body image concerns were recruited to participate in a randomized controlled trial. The intervention group participated in 4 in-person counseling sessions. The control group received an educational booklet and a brief phone call. Participants completed measures of body image, distress, and QOL at baseline and at the 4-week follow-up to assess the impact of the intervention. Intervention outcomes were assessed with 2 sample t-tests or Mann-Whitney U tests as appropriate. RESULTS: Twenty-nine participants completed both the baseline and follow-up assessments. The intervention demonstrated good feasibility with a high retention rate (79%), visit completion rate (81%), and high satisfaction scores (75% reported mean satisfaction score of >3). Intervention did not result in an observed statistically significant difference in reduction in body image dissatisfaction and disturbance, psychological distress, or improvement in QOL compared with the control group. However, intervention resulted in statistically significant difference in perceived social impact (-1 vs. -8.3, p = 0.033) compared to control group. SIGNIFICANCE OF RESULTS: Our study highlights the potential clinical benefits of a novel psychotherapeutic intervention that targets body image concerns and suggests the need for further evaluation.

4.
Aesthet Surg J ; 41(Suppl 1): S39-S49, 2021 05 18.
Artigo em Inglês | MEDLINE | ID: mdl-34002768

RESUMO

This article presents a comprehensive review of the use of quantitative measurements based on breast images to assess fat retention, breast aesthetics, and fat necrosis after autologous fat grafting. Breast volume measured from MRI and 3-dimensional surface images is widely used as a measure of fat retention. Breast aesthetics are assessed from a combination of anthropometric (distance and contour) measurements on breast surface images. Examination of radiologic images (ultrasonography, mammography, and MRI) is utilized to assess fat necrosis. The article discusses implementation guidelines for objective outcome assessment to support robust quantification and enable investigations of fat grafting efficacy. Level of Evidence: 4.


Assuntos
Neoplasias da Mama , Mamoplastia , Tecido Adiposo/diagnóstico por imagem , Mama/diagnóstico por imagem , Mama/cirurgia , Humanos , Mamoplastia/efeitos adversos , Mastectomia , Transplante Autólogo
5.
Support Care Cancer ; 28(8): 3481-3484, 2020 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-32215735

RESUMO

An important aspect of breast cancer survivorship is finding comfortable undergarments that work for women's post-treatment bodies. Patients who undergo mastectomy, including both those who do and do not receive reconstruction, need bras that can accommodate new breast shape, size, and feel, as well as scarring and skin sensitivity. Our research with breast cancer patients and the literature reveal that ready-to-wear bras are inadequate for the variety of patients' needs, and many women lack support and guidance to make decisions about undergarments after cancer. This commentary describes a major quality-of-life challenge for breast cancer survivors and makes recommendations for future research. Healthcare providers need more guidance and resources to be able to help their patients prepare for this aspect of survivorship. New technologies, such as biomechanical modeling, 3D body scanning, and manufacturing techniques, should be pursued in collaboration with patients, healthcare providers, and clothing designers to ease this burden for breast cancer patients.


Assuntos
Neoplasias da Mama/cirurgia , Vestuário/normas , Mastectomia/reabilitação , Neoplasias da Mama/psicologia , Sobreviventes de Câncer , Vestuário/psicologia , Feminino , Humanos , Mastectomia/psicologia , Avaliação das Necessidades , Preferência do Paciente , Qualidade de Vida , Inquéritos e Questionários , Sobrevivência
6.
Cleft Palate Craniofac J ; 57(2): 218-227, 2020 02.
Artigo em Inglês | MEDLINE | ID: mdl-31394915

RESUMO

OBJECTIVE: To identify rates of nonadherence to orthodontic treatment among youth with cleft lip and/or palate (CL/P) and to compare demographic and clinical characteristics of patients categorized as adherent or nonadherent. DESIGN: Retrospective chart review. SETTING: Orthodontic treatment program affiliated with a US pediatric hospital-based craniofacial team. PARTICIPANTS: Medical charts of 54 patients with CL/P beginning phase I or phase II orthodontics between 2011 and 2014 (54% male; mean age: 11.7 ± 3.2 years) were reviewed. MAIN OUTCOME MEASURE(S): Data abstracted included demographic and clinical characteristics. Patients were classified as nonadherent based upon treatment termination due to nonadherence, treatment courses extending beyond 3 years, and information about missed appointments, poor oral hygiene, and broken appliances. RESULTS: In all, 24% had treatment terminated due to nonadherence and were significantly more likely to have behavioral health diagnoses (P = .01) or visits (P = .02) and social work consults (P = .01) than patients without termination. Thirty-seven percent had treatment courses beyond 3 years; youth with longer courses were significantly more likely to have cleft lip and palate versus cleft palate only or cleft lip (P = .03). Patients who missed more than 4 appointments were less likely to have behavioral health diagnoses (P < .01) compared to those with fewer missed appointments. Poor hygiene and broken appliance notations were common. Youth with poor hygiene notations were significantly older (P < .01) at treatment initiation than those without notations. CONCLUSIONS: Nonadherence was associated with diagnosis, age, and history of behavioral health or social work involvement. An understanding of adherence and relationships with clinical and demographic factors can inform clinical care and support intervention development to improve outcomes.


Assuntos
Fenda Labial , Fissura Palatina , Ortodontia , Adolescente , Criança , Feminino , Humanos , Masculino , Estudos Retrospectivos
7.
Molecules ; 25(12)2020 Jun 20.
Artigo em Inglês | MEDLINE | ID: mdl-32575717

RESUMO

A key challenge in melanoma diagnosis is the large number of unnecessary biopsies on benign nevi, which requires significant amounts of time and money. To reduce unnecessary biopsies while still accurately detecting melanoma lesions, we propose using Raman spectroscopy as a non-invasive, fast, and inexpensive method for generating a "second opinion" for lesions being considered for biopsy. We collected in vivo Raman spectral data in the clinical skin screening setting from 52 patients, including 53 pigmented lesions and 7 melanomas. All lesions underwent biopsies based on clinical evaluation. Principal component analysis and logistic regression models with leave one lesion out cross validation were applied to classify melanoma and pigmented lesions for biopsy recommendations. Our model achieved an area under the receiver operating characteristic (ROC) curve (AUROC) of 0.903 and a specificity of 58.5% at perfect sensitivity. The number needed to treat for melanoma could have been decreased from 8.6 (60/7) to 4.1 (29/7). This study in a clinical skin screening setting shows the potential of Raman spectroscopy for reducing unnecessary skin biopsies with in vivo Raman data and is a significant step toward the application of Raman spectroscopy for melanoma screening in the clinic.


Assuntos
Melanoma/diagnóstico por imagem , Neoplasias Cutâneas/diagnóstico por imagem , Análise Espectral Raman/métodos , Biópsia , Humanos , Modelos Logísticos , Melanoma/diagnóstico , Melanoma/patologia , Análise de Componente Principal , Curva ROC , Neoplasias Cutâneas/diagnóstico , Neoplasias Cutâneas/patologia , Análise Espectral Raman/instrumentação
8.
Cleft Palate Craniofac J ; 56(10): 1322-1332, 2019 11.
Artigo em Inglês | MEDLINE | ID: mdl-31159560

RESUMO

OBJECTIVE: (1) To explore orthodontists' perceptions of nonadherence and related factors in their patients with craniofacial conditions; (2) to examine differences in adherence perceptions by provider characteristics; (3) to evaluate current adherence interventions. DESIGN: Cross-sectional. SETTING: United States-based orthodontists affiliated with a nonprofit association for providers treating oral cleft and craniofacial conditions received survey invitations via list-serv, e-mail, and social media. PARTICIPANTS: Thirty-eight orthodontists participated (mean age = 50.5 ± 10.7 years; 76% Caucasian; 55% male; 54% private practice). MAIN OUTCOME MEASURE: An 80-item survey assessed demographic characteristics; frequencies of various adherence problems and adherence-related prolonged or terminated treatment; importance of adherence to treatment outcomes; factors that may impact adherence; interest in improving adherence; and use of adherence-enhancing interventions. RESULTS: Adherence problems were common, yet 80.6% of participants rated adherence as "very important" to cleft treatment outcomes. Child behavior and motivation, caregiver reinforcement of behavior, and provider communication with the family were identified as factors that greatly impact adherence. Orthodontists in university-affiliated programs were more likely to rate individual, family, health-care system, and community factors as impacting adherence compared to private practice orthodontists; 80.6% used adherence interventions; these strategies were all rated as "sometimes successful." CONCLUSIONS: Nonadherence to cleft lip/palate-related orthodontic care is common and potentially detrimental to care. Current interventions are not uniformly successful and could be better tailored. Understanding provider, patient, and family factors that affect adherence can inform individualized treatment planning to improve adherence and ultimately, treatment outcomes.


Assuntos
Ortodontia , Ortodontistas , Adolescente , Criança , Comunicação , Estudos Transversais , Feminino , Humanos , Masculino , Inquéritos e Questionários , Estados Unidos
9.
Psychooncology ; 27(9): 2119-2124, 2018 09.
Artigo em Inglês | MEDLINE | ID: mdl-29846028

RESUMO

OBJECTIVE: Our long-term goal is to develop a normative feedback intervention to support head and neck cancer patients in forming realistic expectations about how other people in non-social group settings will respond to their appearance. This study aimed to evaluate the relationship between observer ratings of facial disfigurement and observer ratings of emotional response when viewing photographs of faces of head and neck cancer patients. METHODS: Seventy-five (75) observers rated their emotional response to each of 144 facial photographs of head and neck cancer patients using the Self-Assessment-Manikin and rated severity of facial disfigurement on a 9-point scale. Body image investment of the observers was measured using the Appearance Schemas Inventory-Revised. A standardized multiple regression model was used to assess the relationship between observer ratings of facial disfigurement and observer ratings of emotional response, taking into consideration the age and sex of the patient depicted in the stimulus photograph, as well as the age, sex, and body image investment of the observer. RESULTS: Observers who had a strong emotional response to a patient's facial photograph tended to rate the patient's facial disfigurement as more severe (standardized regression coefficient ß = 0.328, P < 0.001). Sex and age of the observer had more influence on the rating of facial disfigurement than did the patient's demographic characteristics. Observers more invested in their own body image tended to rate the facial disfigurement as more severe. CONCLUSIONS: This study lays the groundwork for a normative database of emotional response to facial disfigurement.


Assuntos
Imagem Corporal/psicologia , Face , Neoplasias de Cabeça e Pescoço/psicologia , Qualidade de Vida/psicologia , Percepção Social , Adulto , Idoso , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Variações Dependentes do Observador
10.
Psychooncology ; 27(3): 857-863, 2018 03.
Artigo em Inglês | MEDLINE | ID: mdl-29152816

RESUMO

OBJECTIVE: Reconstruction as part of treatment for breast cancer is aimed at mitigating body image concerns after mastectomy. Although algorithms have been developed to objectively assess breast reconstruction outcomes, associations between objectively quantified breast aesthetic appearance and patient-reported body image outcomes have not been examined. Further, the role of appearance investment in explaining a patient's body image is not well understood. We investigated the extent to which objectively quantified breast symmetry and patient-reported appearance investment were associated with body image dissatisfaction in patients undergoing cancer-related breast reconstruction. METHODS: Breast cancer patients in different stages of reconstruction (n = 190) completed self-report measures of appearance investment and body image dissatisfaction. Vertical extent and horizontal extent symmetry values, which are indicators of breast symmetry, were calculated from clinical photographs. Associations among breast symmetry, appearance investment, body image dissatisfaction, and patient clinical factors were examined. Multi-variable regression was used to evaluate the extent to which symmetry and appearance investment were associated with body image dissatisfaction. RESULTS: Vertical extent symmetry, but not horizontal extent symmetry, was associated with body image dissatisfaction. Decreased vertical extent symmetry (ß = -.19, P < .05) and increased appearance investment (ß = .45, P < .001) were significantly associated with greater body image dissatisfaction while controlling for clinical factors. CONCLUSIONS: Breast symmetry and patient appearance investment both significantly contribute to an understanding of patient-reported body image satisfaction during breast reconstruction treatment.


Assuntos
Imagem Corporal/psicologia , Neoplasias da Mama/cirurgia , Mamoplastia/psicologia , Mastectomia/psicologia , Satisfação do Paciente , Satisfação Pessoal , Adulto , Idoso , Feminino , Humanos , Pessoa de Meia-Idade
11.
Psychooncology ; 25(9): 1106-12, 2016 09.
Artigo em Inglês | MEDLINE | ID: mdl-26360810

RESUMO

OBJECTIVE: The process of cancer-related breast reconstruction is typically multi-staged and can take months to years to complete, yet few studies have examined patient psychosocial well-being during the reconstruction process. We investigated the effects of reconstruction timing and reconstruction stage on body image and quality of life at specific time points during the breast reconstruction process. METHODS: In this cross-sectional study, 216 patients were grouped into four reconstructive stages: pre-reconstruction, completed stage 1, completed stage 2, and final stages. Multiple regression analyses examined the roles of reconstruction timing (immediate vs delayed reconstruction) and reconstruction stage as well as their interaction in predicting body image and quality of life, controlling for patient age, BMI, type of reconstruction, chemotherapy, radiation therapy, and major complication(s). RESULTS: A difference in pattern of body image was observed across the reconstructive stages, with those receiving delayed reconstruction showing significant decrease in body image dissatisfaction compared with those with immediate reconstruction. At pre-reconstruction, patients awaiting delayed reconstruction reported significantly lower social well-being compared with those awaiting immediate reconstruction. Reconstruction stage predicted emotional well-being, with higher emotional well-being observed in those who had commenced reconstruction. CONCLUSIONS: Timing and stage of reconstruction are important to consider when examining psychosocial outcomes of breast cancer patients undergoing reconstruction. Those waiting to initiate delayed reconstruction appear at particular risk for body image, emotional, and social distress. Our findings have implications for delivery of psychosocial treatment to maximize body image and quality of life of patients undergoing cancer-related breast reconstruction.Copyright © 2015 John Wiley & Sons, Ltd.


Assuntos
Imagem Corporal/psicologia , Neoplasias da Mama/cirurgia , Mamoplastia/psicologia , Mastectomia/psicologia , Qualidade de Vida , Adulto , Idoso , Neoplasias da Mama/psicologia , Estudos Transversais , Emoções , Feminino , Humanos , Mastectomia/métodos , Pessoa de Meia-Idade , Fatores de Tempo , Resultado do Tratamento
12.
BMC Med Imaging ; 15: 12, 2015 Mar 27.
Artigo em Inglês | MEDLINE | ID: mdl-25885763

RESUMO

BACKGROUND: Patients with facial cancers can experience disfigurement as they may undergo considerable appearance changes from their illness and its treatment. Individuals with difficulties adjusting to facial cancer are concerned about how others perceive and evaluate their appearance. Therefore, it is important to understand how humans perceive disfigured faces. We describe a new strategy that allows simulation of surgically plausible facial disfigurement on a novel face for elucidating the human perception on facial disfigurement. METHOD: Longitudinal 3D facial images of patients (N = 17) with facial disfigurement due to cancer treatment were replicated using a facial mannequin model, by applying Thin-Plate Spline (TPS) warping and linear interpolation on the facial mannequin model in polar coordinates. Principal Component Analysis (PCA) was used to capture longitudinal structural and textural variations found within each patient with facial disfigurement arising from the treatment. We treated such variations as disfigurement. Each disfigurement was smoothly stitched on a healthy face by seeking a Poisson solution to guided interpolation using the gradient of the learned disfigurement as the guidance field vector. The modeling technique was quantitatively evaluated. In addition, panel ratings of experienced medical professionals on the plausibility of simulation were used to evaluate the proposed disfigurement model. RESULTS: The algorithm reproduced the given face effectively using a facial mannequin model with less than 4.4 mm maximum error for the validation fiducial points that were not used for the processing. Panel ratings of experienced medical professionals on the plausibility of simulation showed that the disfigurement model (especially for peripheral disfigurement) yielded predictions comparable to the real disfigurements. CONCLUSIONS: The modeling technique of this study is able to capture facial disfigurements and its simulation represents plausible outcomes of reconstructive surgery for facial cancers. Thus, our technique can be used to study human perception on facial disfigurement.


Assuntos
Traumatismos Faciais/etiologia , Traumatismos Faciais/patologia , Neoplasias Faciais/patologia , Neoplasias Faciais/cirurgia , Imageamento Tridimensional/métodos , Procedimentos de Cirurgia Plástica/efeitos adversos , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Simulação por Computador , Face/patologia , Feminino , Humanos , Interpretação de Imagem Assistida por Computador/métodos , Masculino , Pessoa de Meia-Idade , Modelos Biológicos , Cuidados Pré-Operatórios/métodos , Reprodutibilidade dos Testes , Sensibilidade e Especificidade , Resultado do Tratamento , Adulto Jovem
13.
Psychol Health Med ; 20(4): 469-76, 2015.
Artigo em Inglês | MEDLINE | ID: mdl-25159529

RESUMO

Increasing attention is being given to developing quantitative measures of facial expression. This study used quantitative facial expression analysis to examine associations between smiling intensity and psychosocial functioning in patients with head and neck cancer (HNC). Smiling intensity of 95 HNC patients was measured using 48 quantitative measures calculated from facial photographs with and without a smile. We computed a composite smiling intensity score for each patient representing the degree of similarity to healthy controls. A lower composite score indicates that the person is less expressive, on average, than healthy controls. Patients also completed self-report measures assessing domains of body image and quality of life (QOL). Spearman rank correlations were computed to examine relationships between composite scores and psychosocial functioning. Composite scores were significantly correlated with multiple measures of body image and QOL. Specifically, decreased smiling intensity was associated with feelings of dissatisfaction with one's body, perceived negative social impact of body image, increased use of avoidance as a body image-coping strategy, reduced functional well-being, and greater head and neck cancer-specific issues. To the best of our knowledge, this is the first study to demonstrate associations between an objectively quantified facial expression (i.e. smiling) and psychosocial functioning. Most previous studies have measured facial expression qualitatively. These findings indicate that smiling intensity may serve as an important clinical indicator of psychosocial well-being and warrants further clinical investigation.


Assuntos
Imagem Corporal/psicologia , Neoplasias de Cabeça e Pescoço/fisiopatologia , Relações Interpessoais , Sorriso/fisiologia , Adaptação Psicológica , Idoso , Estudos de Casos e Controles , Expressão Facial , Feminino , Neoplasias de Cabeça e Pescoço/psicologia , Humanos , Masculino , Pessoa de Meia-Idade , Satisfação Pessoal , Qualidade de Vida , Sorriso/psicologia
14.
J Digit Imaging ; 27(2): 248-54, 2014 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-24190140

RESUMO

The purpose of this study was to evaluate stereoscopic perception of low-dose breast tomosynthesis projection images. In this Institutional Review Board exempt study, craniocaudal breast tomosynthesis cases (N = 47), consisting of 23 biopsy-proven malignant mass cases and 24 normal cases, were retrospectively reviewed. A stereoscopic pair comprised of two projection images that were ±4° apart from the zero angle projection was displayed on a Planar PL2010M stereoscopic display (Planar Systems, Inc., Beaverton, OR, USA). An experienced breast imager verified the truth for each case stereoscopically. A two-phase blinded observer study was conducted. In the first phase, two experienced breast imagers rated their ability to perceive 3D information using a scale of 1-3 and described the most suspicious lesion using the BI-RADS® descriptors. In the second phase, four experienced breast imagers were asked to make a binary decision on whether they saw a mass for which they would initiate a diagnostic workup or not and also report the location of the mass and provide a confidence score in the range of 0-100. The sensitivity and the specificity of the lesion detection task were evaluated. The results from our study suggest that radiologists who can perceive stereo can reliably interpret breast tomosynthesis projection images using stereoscopic viewing.


Assuntos
Doenças Mamárias/diagnóstico por imagem , Intensificação de Imagem Radiográfica/métodos , Biópsia , Feminino , Humanos , Imageamento Tridimensional , Mamografia/métodos , Doses de Radiação , Estudos Retrospectivos , Sensibilidade e Especificidade , Inquéritos e Questionários
15.
ArXiv ; 2024 May 22.
Artigo em Inglês | MEDLINE | ID: mdl-38827461

RESUMO

Virtual staining streamlines traditional staining procedures by digitally generating stained images from unstained or differently stained images. While conventional staining methods involve time-consuming chemical processes, virtual staining offers an efficient and low infrastructure alternative. Leveraging microscopy-based techniques, such as confocal microscopy, researchers can expedite tissue analysis without the need for physical sectioning. However, interpreting grayscale or pseudo-color microscopic images remains a challenge for pathologists and surgeons accustomed to traditional histologically stained images. To fill this gap, various studies explore digitally simulating staining to mimic targeted histological stains. This paper introduces a novel network, In-and-Out Net, specifically designed for virtual staining tasks. Based on Generative Adversarial Networks (GAN), our model efficiently transforms Reflectance Confocal Microscopy (RCM) images into Hematoxylin and Eosin (H&E) stained images. We enhance nuclei contrast in RCM images using aluminum chloride preprocessing for skin tissues. Training the model with virtual H\&E labels featuring two fluorescence channels eliminates the need for image registration and provides pixel-level ground truth. Our contributions include proposing an optimal training strategy, conducting a comparative analysis demonstrating state-of-the-art performance, validating the model through an ablation study, and collecting perfectly matched input and ground truth images without registration. In-and-Out Net showcases promising results, offering a valuable tool for virtual staining tasks and advancing the field of histological image analysis.

16.
Res Sq ; 2024 May 09.
Artigo em Inglês | MEDLINE | ID: mdl-38766077

RESUMO

Purpose: Breast cancer surgery, even with reconstruction, can make it difficult for patients to find a bra that fits properly, is comfortable, and meets their aesthetic standards. We explored breast cancer survivors' experiences with bras over time to identify preferences, needs, and challenges throughout their journeys. Methods: Fifteen women who had undergone mastectomy and either delayed or immediate breast reconstruction participated in the study. Focus groups were conducted to explore the participants' current experiences with bras. They were also prompted to recall their experiences before mastectomy and immediately after reconstruction. The discussion included bra materials, styles, construction techniques, color, quality, and price. Results: Thematic analysis generated five major themes: "Sense of normalcy and personal well-being," "Struggles immediately following surgery," "Transitions in bra experiences and preference," "Practicality with outfit," and "Association between quality and price". Conclusion: Breast cancer survivors' well-being is linked to their experiences with bras and the associated purchasing process, and bra needs change throughout the cancer care journey. Survivors' experiences with bras impact their sense of normalcy and sense of control over significant bodily changes arising from cancer and its treatment. The study underscores the importance of future research on examining the relationship between survivors' quality of life and garment experiences, including factors such as color choices, closure options, and adjustability for individual needs.

17.
Opt Lett ; 38(21): 4374-7, 2013 Nov 01.
Artigo em Inglês | MEDLINE | ID: mdl-24177097

RESUMO

A low-resolution path-length-multiplexed scattering angle diverse optical coherence tomography (PM-SAD-OCT) is constructed to investigate the scattering properties of the retinal nerve fiber layer (RNFL). Low-resolution PM-SAD-OCT retinal images acquired from a healthy human subject show the variation of RNFL scattering properties at retinal locations around the optic nerve head. The results are consistent with known retinal ganglion cell neural anatomy and principles of light scattering. Application of PM-SAD-OCT may provide potentially valuable diagnostic information for clinical retinal imaging.


Assuntos
Retina/citologia , Espalhamento de Radiação , Tomografia de Coerência Óptica/métodos , Animais , Humanos , Imagens de Fantasmas
18.
Crit Care Clin ; 39(4): 675-687, 2023 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-37704333

RESUMO

Perioperative morbidity and mortality are significantly associated with both static and dynamic perioperative factors. The studies investigating static perioperative factors have been reported; however, there are a limited number of previous studies and data sets analyzing dynamic perioperative factors, including physiologic waveforms, despite its clinical importance. To fill the gap, the authors introduce a novel large size perioperative data set: Machine Learning Of physiologic waveforms and electronic health Record Data (MLORD) data set. They also provide a concise tutorial on machine learning to illustrate predictive models trained on complex and diverse structures in the MLORD data set.


Assuntos
Registros Eletrônicos de Saúde , Aprendizado de Máquina , Humanos , Relevância Clínica
19.
Aesthet Surg J Open Forum ; 5: ojac090, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-36654970

RESUMO

Background: Satisfaction with the breast aesthetic outcome is an expectation of breast reconstruction surgery, which is an integral part of cancer treatment for many patients. We evaluated postreconstruction breast symmetry in 82 female patients using distance and volume measurements. Objectives: Clinical factors, such as reconstruction type (implant-based and autologous reconstruction), laterality, timing of reconstruction (immediate, delayed, and sequential), radiation therapy (RT), and demographic factors (age, BMI, race, and ethnicity), were evaluated as predictors of postoperative symmetry. Matched preoperative and postoperative measurements for a subset of 46 patients were used to assess correlation between preoperative and postoperative symmetry. Methods: We used standardized differences between the left and right breasts for the sternal notch to lowest visible point distance and breast volume as metrics for breast, positional symmetry, and volume symmetry, respectively. We performed statistical tests to compare symmetry between subgroups of patients based on reconstruction type, laterality, timing, RT, and demographics. Results: Overall, reconstruction type, reconstruction timing, and RT were observed to be factors significantly associated with postoperative symmetry, with implant reconstructions and immediate reconstruction procedures, and no RT showing better postoperative breast volume symmetry. Subgroup analyses, for both reconstruction type and laterality, showed superior volume symmetry for the bilateral implant reconstructions. No correlation was observed between preoperative and postoperative breast symmetry. Demographic factors were not significant predictors of postreconstruction symmetry. Conclusions: This comprehensive analysis examines multiple clinical factors in a single study and will help both patients and surgeons make informed decisions about reconstruction options at their disposal.

20.
Res Sq ; 2023 May 11.
Artigo em Inglês | MEDLINE | ID: mdl-37214881

RESUMO

Purpose: To inform bra design by analyzing 3D surface images of breast cancer patients who underwent autologous breast reconstruction. Methods: We computed bra design measurements on 3D surface images of patients who underwent unilateral and bilateral autologous breast reconstruction. Breast measurements and right-left symmetry between preoperative baseline and postoperative time points were compared using either paired Student t test or Wilcoxon signed rank test, depending on the data's distribution. Regression analysis determined associations between measurements and patient characteristics such as age. Postoperative measurements and symmetry differences were also compared between autologous and implant-based breast reconstruction. Results: Among participants who underwent bilateral autologous breast reconstruction, the reconstructed breasts were smaller and positioned higher on the chest wall than their native breasts. For patients who underwent unilateral reconstruction, similar postoperative changes were observed in the contralateral breast due to symmetry procedures. Overall, for participants whose baseline breast measurements showed substantial asymmetry, unilateral reconstruction decreased right-left asymmetry whereas bilateral reconstruction amplified right-left asymmetry. Preoperative baseline breast measurements, age, and BMI were statistically significantly associated with most postoperative breast measurements for participants who underwent bilateral autologous reconstruction. Compared to implant-based reconstruction, autologous reconstruction resulted in fewer changes in breast shape and symmetry that are pertinent to bra fit. Conclusion: Preoperative baseline breast measurements, age, and BMI can impact bra designs for breast cancer survivors who undergo autologous reconstruction due to size, shape, and symmetry changes. Bra needs of people who undergo autologous reconstruction differ from those who undergo implant-based reconstruction.

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