Результаты поиска

Assessing Osteolytic Lesion Size on Sequential CT Scans Is a Reliable Study Endpoint for Bone Remineralization in Newly Diagnosed Multiple Myeloma.

Multiple myeloma (MM) frequently induces persisting osteolytic manifestations despite hematologic treatment response. This study aimed to establish a biometrically valid study endpoint for bone remineralization through quantitative and qualitative analyses in sequential CT scans. Twenty patients (seven women, 58 ± 8 years) with newly diagnosed MM received standardized induction therapy comprising the anti-SLAMF7 antibody elotuzumab, carfilzomib, lenalidomide, and dexamethasone (E-KRd). All patients underwent whole-body low-dose CT scans before and after six cycles of E-KRd. Two radiologists in

Отчет о ДИД 1st Ежегодный Всемирный конгресс биомедицинской инженерии, проводимый в Сиане, Китай, 9-11 ноябрь 2017.

Мы рады представить на этом заседании резюме доклада "ДИД" 1st Всемирный конгресс биомедицинской инженерии 2017которая была проведена в Сиане в Китае [...].

Bone density and pain response following intensity-modulated radiotherapy versus three-dimensional conformal radiotherapy for vertebral metastases - secondary results of a randomized trial.

BACKGROUND: This was a prespecified secondary analysis of a randomized trial that analyzed bone density and pain response following fractionated intensity-modulated radiotherapy (IMRT) versus three-dimensional conformal radiotherapy (3DCRT) for palliative management of spinal metastases. METHODS/MATERIALS: Sixty patients were enrolled in the single-institutional randomized exploratory trial, randomly assigned to receive IMRT or 3DCRT (30 Gy in 10 fractions). Along with pain response (measured by the Visual Analog Scale (VAS) and Chow criteria), quantitative bone density was evaluated at basel

Radiomics in spinal research: a narrative review.

Radiomics has emerged as a transformative tool in medical imaging, offering the ability to extract complex quantitative features that are generally indiscernible to the human eye. These radiomic features can be interrogated non-invasively on medical imaging. Importantly, in contrast to traditional diagnostic methods reliant on a single, often scalar, measure, radiomics features can form a high-dimensional data space from imaging data suitable for machine learning. Within the framework of artificial intelligence, radiomic features can be harnessed for differentiating healthy from pathological t

Hypercalcemia in poorly differentiated endometrial cancer: a report of two cases.

BACKGROUND: Hypercalcemia as a paraneoplastic syndrome is associated with poor prognosis. It is most commonly caused by parathyroid hormone-related protein (PTHrP) production, less commonly by bony metastases, and very rarely by ectopic parathyroid hormone (PTH) secretion. Hypercalcemia in endometrial cancer is relatively rare. CASE PRESENTATION: We present two cases of hypercalcemia in patients with poorly differentiated endometrial cancer, both of whom had elevated PTH levels and no evidence of parathyroid disease or bone metastases at baseline. In the first case, hypercalcemia rapidly prog

Совпадение в полном тексте источника
… computed tomography. … Abbreviations: PTHrP, parathyroid hormone-related protein; PTH, parathyroid hormone; PHPT, primary hyperparathyroidism; IHC, immunohistochemistry; HCM, hypercalcemia of malignancy; US, ultrasound; 4D-CT, four-dimensional computed tomography. Adapted from references. …

Skeletal Metastasis as Detected by 18F-FDG PET with Negative CT of the PET/CT: Frequency and Impact on Cancer Staging and/or Management.

ObjectivesThe aim of our study is to assess the frequency of detection of PET-positive computed tomography (CT)-negative skeletal metastases (SM) and determine the impact of such detection on staging and/or management in patients who had FDG PET/CT as part of the cancer work-up.MethodsWe retrospectively reviewed 2000 18F-FDG PET/CT scans of known cancer patients. A log was kept to record cases of suspected SM with or without bone changes from the low-dose non-contrast CT. The presence or absence of SM was evaluated based on available pathological and clinical data. The impact of detection of s

Artificial intelligence assisted preoperative planning and 3D-printing guiding frame for percutaneous screw reconstruction in periacetabular metastatic cancer patients.

BACKGROUND: The percutaneous screw reconstruction technique, known as the "Tripod Technique," has demonstrated favorable clinical outcomes in the management of metastatic periacetabular lesions, as evidenced by our prior investigations and corroborated by independent studies. Nevertheless, there is a steep learning curve in handling this technique, with possible complications such as intraarticular screw placement. METHODS: Preoperative pelvic CT scans were acquired before surgery and utilized for the guiding frame design. A convolutional neural network model was trained with annotated data t

Sternum Metastases: From Case-Identifying Strategy to Multidisciplinary Management.

We aimed to overview the most recent data on sternal metastases from a multidisciplinary approach (diagnosis strategies, outcome, and histological reports). This narrative review based on a PubMed search (between January 2020 and 22 July 2023) using key words such as "sternal", "manubrium", and "metastasis" within the title and/or abstract only included original papers that specifically addressed secondary sternal spreading of cancer in adults, for a total of 48 original articles (14 studies and 34 single case reports). A prior unpublished case in point is also introduced (percutaneous incisio

Complementarity of surgical therapy, photobiomodulation, A-PRF and L-PRF for management of medication-related osteonecrosis of the jaw (MRONJ): an animal study.

BACKGROUND: This study aimed to evaluate the complementarity of surgical therapy, photobiomodulation (PBM), advanced platelet-rich fibrin (A-PRF), and Leukocyte and platelet-rich fibrin (L-PRF) for the management of medication-related osteonecrosis of the jaw (MRONJ). METHODS: Sixty rats underwent injection of zoledronate followed by left mandibular first and second molar extractions to induce MRONJ lesions. All rats were examined for the signs of MRONJ 8 weeks post-dental extraction. Forty-nine rats with positive signs of MRONJ were appointed to seven different groups as follows: control (Ct

The inhibition of RANKL-induced osteoclastogenesis through the suppression of p38 signaling pathway by naringenin and attenuation of titanium-particle-induced osteolysis.

The aim of this study was to assess the effect of naringenin on osteoclastogenesis and titanium particle-induced osteolysis. Osteolysis from wear-induced particles and aseptic loosening are the most frequent late complications of total joint arthroplasty leading to revision of the prosthesis. Osteolysis during aseptic loosening is most likely due to increased bone resorption by osteoclasts. Through in vitro studies, we demonstrated that naringenin, a naturally occurring flavanone in grapefruit and tomatoes, exerts potent inhibitory effects on the ligand of the receptor activator of nuclear fac

Е-постеры.

Аннотация не предоставлена источником. Откройте карточку для перехода к публикации.

Fractal analysis of jawbone structure in patients with rheumatoid arthritis.

PurposePeriarticular and generalized osteoporosis are well-known comorbidities of rheumatoid arthritis (RA), associated with either the disease itself or glucocorticoid therapy. This study was performed to quantitatively evaluate changes in the jawbones of patients with RA using fractal analysis (FA).Materials and methodsThe study comprised 186 participants, including 144 women and 42 men. Of these, 93 were patients with RA and 93 were healthy controls. For the RA group, disease duration, laboratory findings, and medication use were recorded. Measurements of fractal dimension (FD), lacunarity

Cancer-Therapy-Related Cardiac Dysfunction: Latest Advances in Prevention and Treatment.

The increasing efficacy of cancer therapies has significantly improved survival rates, but it has also highlighted the prevalence of cancer-therapy-related cardiac dysfunction (CTRCD). This review provides a comprehensive overview of the identification, monitoring, and management of CTRCD, a condition resulting from several treatments, such as anthracyclines, HER2-targeted therapies, target therapies, and radiotherapy. The paper includes a discussion of the mechanisms of CTRCD associated with various cancer treatments. Early detection through serum biomarkers and advanced imaging techniques is

Точность и безопасность помещения в педиатрическое отделение для лечения идиопатического сколиоза у подростков: анализ нарации с сопоставлением имеющихся методов.

Постэриорный спинной синтез и сегментальные спинномозговые приборы с использованием педикловых винтов (PS) являются наиболее используемой процедурой для коррекции идиопатического сколиоза подростков. В дополнение к первому описанному методу свободного использования имеются рассчитанные шаблоны навигации, роботонавигации и тренировки для конкретного пациента. Ни один из этих методов не признается в качестве золотого стандарта. В настоящем обзоре сопоставляются полученные показатели точности размещения и осложнений, связанных с неправильной расстановкой кадров, с вышеупомянутыми методами. В нем

Prevention of tooth extraction-triggered bisphosphonate-related osteonecrosis of the jaws with basic fibroblast growth factor: An experimental study in rats.

Osteonecrosis of the jaw induced by administration of bisphosphonates (BPs), BP-related osteonecrosis (BRONJ), typically develops after tooth extraction and is medically challenging. As BPs inhibit oral mucosal cell growth, we hypothesized that suppression of the wound healing-inhibiting effects could prevent BRONJ onset after tooth extraction. Since basic fibroblast growth factor (bFGF) promotes wound healing, but has a short half-life, we examined whether the initiation of BRONJ could be prevented by applying a bFGF-containing gelatin hydrogel over the extraction sockets of BRONJ model rats.

In Vivo Bone Tissue Engineering Strategies: Advances and Prospects.

Reconstruction of critical-sized bone defects remains a tremendous challenge for surgeons worldwide. Despite the variety of surgical techniques, current clinical strategies for bone defect repair demonstrate significant limitations and drawbacks, including donor-site morbidity, poor anatomical match, insufficient bone volume, bone graft resorption, and rejection. Bone tissue engineering (BTE) has emerged as a novel approach to guided bone tissue regeneration. BTE focuses on in vitro manipulations with seed cells, growth factors and bioactive scaffolds using bioreactors. The successful clinical

Достижения в области диагностических средств и терапевтических подходов к глиомамам: всеобъемлющий обзор.

Глиомы, широко распространенная категория первичных злокачественных опухолей мозга, создают огромные клинические проблемы из-за их инвазивного характера и ограниченных возможностей лечения. Нынешний терапевтический ландшафт для глиомов сдерживается ".one-Эта парадигма подходит для всех, что существенно ограничивает эффективность лечения. Несмотря на осуществление стратегий мультимодального лечения, показатели выживаемости по-прежнему вызывают разочарование. Традиционный подход к лечению, предусматривающий хирургическое пересечение, излучение и химиотерапию, сталкивается с серьезными ограничени

Минимальная клиническая разница EQ-5D-5L, SF-6Dv2, и QLU-C10D в гематологовых халатных пациентах Китая.

СПРАВОЧНАЯ ИНФОРМАЦИЯ: Оценка минимальной клинически важной разницы (MCID) в Евроколе five- Размер five- уровеньEQ-5D-5L) Короткая форма Six- Многомерная версия 2 (В тыс.SF-6Dv2), и качество жизни 10 РазмерыQLU-C10D) у китайских пациентов с гематологическими микроорганизмами. МЕТОДЫ: Продольные данные были получены от лимфомы и нескольких пациентов с миеломой, проходящих лечение в третичной больнице в Шанхае, Китай. Базовые обследования были проведены в 2022, с последующими мерами 2023 на 3- до 6-month интервалы. Всего 200 лимфома и 139 Множество пациентов миэломы были зачислены 78 и 89 Пациен

Coronary CT and the coronary calcium score, the future of ED risk stratification?

Accurate and efficient evaluation of acute chest pain remains clinically challenging because traditional diagnostic modalities have many limitations. Recent improvement in non-invasive imaging technologies could potentially improve both diagnostic efficiency and clinical outcomes of patients with acute chest pain while reducing unnecessary hospitalizations. However, there is still controversy regarding much of the evidence for these technologies. This article reviews the role of coronary artery calcium score and the coronary computed tomography in the assessment of individual coronary risk and

Radiomics-based classification of medication-related osteonecrosis of the jaw using panoramic radiographs.

OBJECTIVES: Medication-related osteonecrosis of the jaw (MRONJ) caused by bone resorption inhibitors is difficult to treat and reduces the patient's quality of life. We aimed to classify the likelihood of MRONJ development using panoramic radiographs taken prior to bone resorption inhibitor administration. METHODS: We included patients who underwent panoramic radiographic evaluation at Hiroshima University Hospital prior to bone resorption inhibitor administration. Thirty-two patients with MRON of the mandible (16 men and 16 women) and 57 without MRONJ (23 men and 34 women) were selected. The