Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 6 de 6
Filtrar
Más filtros











Base de datos
Intervalo de año de publicación
1.
J Rheumatol ; 2024 Sep 15.
Artículo en Inglés | MEDLINE | ID: mdl-39278654

RESUMEN

OBJECTIVE: Radiographic assessment of sacroiliac joints (SIJs) according to the modified New York (mNY) criteria is key in classification of axSpA but has moderate inter-reader agreement. We aimed to investigate the reliability improvements scoring SIJ radiographs after applying an online real-time iterative calibration (RETIC) module, in addition to a slideshow and video alone. METHODS: Nineteen readers, randomized to 2 groups (A/B), completed 3 calibration steps: I) review of manuscripts, II) review of slideshow and video and group A completed RETIC, III) re-review of slideshow+video and group B completed RETIC . The RETIC module gave instant feedback on reader's gradings and continued until predefined reliability (kappa) targets for mNY positivity/negativity were met. Each step was followed by scoring different batches of 25 radiographs (Exercises I-III). Agreement (kappa) with an expert radiologist was assessed for mNY+/mNY- and individual lesions. Improvements by training strategies were tested by linear mixed models. RESULTS: In exercises I/II/III, mNY kappas were 0.61/0.76/0.84 in group A, and 0.70/0.68/0.86 in group B, respectively, i.e. increasing, mainly after RETIC completion. Improvements were observed for both grading mNY+/mNY- and for individual pathologies, both in experienced and, particularly, inexperienced readers. Completion of the RETIC module in addition to slideshow and video caused a significant kappa increase of 0.17 (CI: 0.07-0.27, P=0.002) for mNY+/mNY- grading, while completion of slideshow and video alone did not (0.0; CI -0.10-+0.10, P=0.99). CONCLUSION: Agreement on scoring radiographs according to the mNY criteria significantly improved when adding an online RETIC module, but not by slideshow and video alone.

2.
Radiol Oncol ; 58(2): 206-213, 2024 06 01.
Artículo en Inglés | MEDLINE | ID: mdl-38613840

RESUMEN

BACKGROUND: This retrospective study investigated the efficacy of endovascular treatment with multilayer flow modulators (MFMs) for treating aortic aneurysms in high-risk patients unsuitable for conventional treatments. PATIENTS AND METHODS: Conducted from 2011 to 2019 at a single center, this retrospective observational study included 17 patients who underwent endovascular treatment with MFMs. These patients were selected based on their unsuitability for traditional surgical or endovascular procedures. The study involved meticulous pre-procedural planning, precise implantation of MFMs, and follow-up using CT angiography. The primary focus was on volumetric and flow volume changes in aneurysms, along with traditional diameter measurements. Moreover, the technical success and post-procedural complications were also registered. RESULTS: The technical success rate was 100%, and 30-day procedural complication rate was 17.6%. Post-treatment assessments revealed that 11 out of 17 patients showed a decrease in flow volume within the aneurysm sac, indicative of a favorable hemodynamic response. The median decrease in flow volume was 12 ml, with a median relative decrease of 8%. However, there was no consistent reduction in aneurysm size; most aneurysms demonstrated a median increase in volume for 46 ml and median increase in diameter for 18 mm. CONCLUSIONS: While MFMs offer a potential alternative for high-risk aortic aneurysm patients, their effectiveness in preventing aneurysm expansion is limited. The results suggest that MFMs can provide a stable hemodynamic environment but do not reliably reduce aneurysm size. This underscores the need for ongoing vigilance and long-term monitoring in patients treated with this technology.


Asunto(s)
Procedimientos Endovasculares , Humanos , Estudios Retrospectivos , Masculino , Femenino , Anciano , Procedimientos Endovasculares/métodos , Resultado del Tratamiento , Aneurisma de la Aorta/diagnóstico por imagen , Aneurisma de la Aorta/fisiopatología , Angiografía por Tomografía Computarizada , Anciano de 80 o más Años , Persona de Mediana Edad , Stents
3.
RMD Open ; 10(1)2024 02 13.
Artículo en Inglés | MEDLINE | ID: mdl-38351052

RESUMEN

BACKGROUND: The Spondyloarthritis Research Consortium of Canada (SPARCC) developers have created web-based calibration modules for the SPARCC MRI sacroiliac joint (SIJ) scoring methods. We aimed to test the impact of applying these e-modules on the feasibility and reliability of these methods. METHODS: The SPARCC-SIJ RETIC e-modules contain cases with baseline and follow-up scans and an online scoring interface. Visual real-time feedback regarding concordance/discordance of scoring with expert readers is provided by a colour-coding scheme. Reliability is assessed in real time by intraclass correlation coefficient (ICC), cases being scored until ICC targets are attained. Participating readers (n=17) from the EuroSpA Imaging project were randomised to one of two reader calibration strategies that each comprised three stages. Baseline and follow-up scans from 25 cases were scored after each stage was completed. Reliability was compared with a SPARCC developer, and the System Usability Scale (SUS) assessed feasibility. RESULTS: The reliability of readers for scoring bone marrow oedema was high after the first stage of calibration, and only minor improvement was noted following the use of the inflammation module. Greater enhancement of reader reliability was evident after the use of the structural module and was most consistently evident for the scoring of erosion (ICC status/change: stage 1 (0.42/0.20) to stage 3 (0.50/0.38)) and backfill (ICC status/change: stage 1 (0.51/0.19) to stage 3 (0.69/0.41)). The feasibility of both e-modules was evident by high SUS scores. CONCLUSION: The SPARCC-SIJ RETIC e-modules are feasible, effective knowledge transfer tools, and their use is recommended before using the SPARCC methods for clinical research and tria.


Asunto(s)
Articulación Sacroiliaca , Espondiloartritis , Humanos , Canadá , Imagen por Resonancia Magnética/métodos , Reproducibilidad de los Resultados , Articulación Sacroiliaca/diagnóstico por imagen , Articulación Sacroiliaca/patología , Espondiloartritis/diagnóstico , Espondiloartritis/patología
4.
Radiol Oncol ; 57(4): 465-472, 2023 12 01.
Artículo en Inglés | MEDLINE | ID: mdl-38038412

RESUMEN

BACKGROUND: Computer-aided diagnosis (i.e., texture analyses) tools are becoming increasingly beneficial methods to monitor subtle tissue changes. The aim of this pilot study was to investigate short-term effect of platelet rich plasma (PRP) treatment in supraspinatus and common extensor of the forearm tendinosis by using texture analysis of ultrasound (US) images as well as by clinical questionnaires. PATIENTS AND METHODS: Thirteen patients (7 male and 6 female, age 36-60 years, mean age 51.2 ± 5.2) were followed after US guided PRP treatment for tendinosis of two tendons (9 patients with lateral epicondylitis and 4 with supraspinatus tendinosis). Clinical and US assessment was performed prior to as well as 3 months after PRP treatment with validated clinical questionnaires. Tissue response in tendons was assessed by using gray level run length matrix method (GLRLM) of US images. RESULTS: All patients improved of tendinosis symptoms after PRP treatment according to clinical questionnaires. Almost all GLRLM features were statistically improved 3 months after PRP treatment. GLRLM-long run high gray level emphasis (LRLGLE) revealed the best moderate positive and statistically significant correlation after PRP (r = 0.4373, p = 0.0255), followed by GLRLM-low gray level run emphasis (LGLRE) (r = 0.3877, p = 0.05). CONCLUSIONS: Texture analysis of tendinosis US images was a useful quantitative method for the assessment of tendon remodeling after minimally invasive PRP treatment. GLRLM features have the potential to become useful imaging biomarkers to monitor spatial and time limited tissue response after PRP, however larger studies with similar protocols are needed.


Asunto(s)
Plasma Rico en Plaquetas , Tendinopatía , Humanos , Masculino , Femenino , Persona de Mediana Edad , Adulto , Resultado del Tratamiento , Proyectos Piloto , Ultrasonografía , Plasma Rico en Plaquetas/diagnóstico por imagen , Tendinopatía/diagnóstico por imagen , Tendinopatía/terapia
5.
Radiol Oncol ; 51(1): 81-87, 2017 Mar 01.
Artículo en Inglés | MEDLINE | ID: mdl-28265236

RESUMEN

BACKGROUND: Advanced follicular lymphoma (FL) and mantle cell lymphoma (MCL) are incurable diseases with conventional treatment. The high dose treatment (HDT) with autologous stem cell transplantation (ASCT), however, offers a certain proportion of these patients the prospect of a prolonged disease-free and overall survival. The aim of this study was to investigate the event free survival (EFS) and overall survival (OS) in patients with FL and MCL treated with ASCT. PATIENTS AND METHODS: Seventeen patients with FL and 29 patients with MCL were included, 15 of them were transplanted to consolidate the response to second line treatment and 24 to consolidate their first remission, respectively. All were conditioned with total body irradiation (TBI) and high dose cyclophosphamide between 2006 and 2014 and all were transplanted with peripheral blood stem cells. RESULTS: The estimated 5-year OS for FL was 87.8% (95% confidence interval [CI] 59.5%-96.8%) and for MCL 79.3% (95% CI 56.1%-91.1%), respectively. The estimated 5-year EFS for FL was 76.0% (95% CI 48.0%-90.3%) and for MCL 69.8% (95% CI 45.5%-84.8%), respectively. There were no secondary hematological malignancies observed in either group. CONCLUSIONS: Based on above results, the ASCT with TBI is a good treatment option in terms of long-term survival for patients with follicular and mantle cell lymphoma demonstrating a relatively low rate of late toxicities and secondary malignancies.

6.
J Assist Reprod Genet ; 33(3): 325-333, 2016 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-26678493

RESUMEN

PURPOSE: The purpose of this study was to determine the fertility rates following treatment by means of the BEACOPP regimen (regular and escalated) (bleomycin, etoposide, doxorubicin, cyclophosphamide, vincristine, procarbazine, prednisone) as compared to the ABVD regimen (doxorubicin, vinblastine, dacarbazine, bleomycin) in Hodgkin lymphoma patients under the age of 40 at the time of treatment. METHODS: A questionnaire was sent to 180 Hodgkin lymphoma (HL) patients. The questionnaire was composed of questions concerning reproduction and also menopausal and aging symptoms in females and males. The analyses were made using data collected from 123 patients (76 females and 47 males) who returned the questionnaire. All of the patients were treated between 1999 and 2012. RESULTS: In comparing the ABVD and BEACOPP groups of female patients, the frequency of the therapy-induced amenorrhea and the restored menses following treatment were found to be significantly different statistically (p = 0.002 and p = 0.012, respectively). The secondary amenorrhea statistically appeared more often in the BEACOPP group (p = 0.003) while the cases of achieving pregnancy and having children after chemotherapy were not significantly different (p = 0.630, p = 0.070, respectively). In comparing the ABVD and BEACOPP treatments in male patients, the only significant difference was in the number of artificially inseminated or in vitro pregnancies achieved in the BEACOPP and escalated BEACOPP group, p = 0.008 and p = 0.002, respectively. In total, 45.2% of patients in the ABVD female group, 34.6% in the BEACOPP female group, 52.6% in the ABVD male group, and 33.3% in the male BEACOPP group, respectively, of patients attempting conception post-therapy, had children after chemotherapy. CONCLUSIONS: Based on these high rates of childbirth following BEACOPP chemotherapy, we have concluded that intensified chemotherapy is not a definite predictor of reduced fertility in young HL patients.


Asunto(s)
Protocolos de Quimioterapia Combinada Antineoplásica/efectos adversos , Fertilidad , Enfermedad de Hodgkin/tratamiento farmacológico , Adolescente , Adulto , Amenorrea/inducido químicamente , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapéutico , Bleomicina/efectos adversos , Bleomicina/uso terapéutico , Dacarbazina/efectos adversos , Dacarbazina/uso terapéutico , Doxorrubicina/efectos adversos , Doxorrubicina/uso terapéutico , Etopósido/administración & dosificación , Femenino , Preservación de la Fertilidad , Estudios de Seguimiento , Humanos , Infertilidad Femenina/inducido químicamente , Infertilidad Masculina/inducido químicamente , Masculino , Embarazo , Procarbazina/administración & dosificación , Encuestas y Cuestionarios , Vinblastina/efectos adversos , Vinblastina/uso terapéutico , Vincristina/administración & dosificación , Adulto Joven
SELECCIÓN DE REFERENCIAS
DETALLE DE LA BÚSQUEDA