J. Muñoz-Iglesias , A. Rodríguez-Fernández , P. Paredes-Barranco , M. Rodríguez-Fraile , A. Gómez-Grande , M. Simó-Perdigó , J. Castell-Conesa
{"title":"Guía rápida de procedimiento de la PET/TC con PSMA","authors":"J. Muñoz-Iglesias , A. Rodríguez-Fernández , P. Paredes-Barranco , M. Rodríguez-Fraile , A. Gómez-Grande , M. Simó-Perdigó , J. Castell-Conesa","doi":"10.1016/j.remn.2024.500045","DOIUrl":"10.1016/j.remn.2024.500045","url":null,"abstract":"<div><p>The application of PET/CT with radiopharmaceuticals targeting PSMA is significantly transforming the diagnostic and therapeutic strategies of patients with prostate cancer. In Spain, the availability and access to positron-emitting radiopharmaceuticals targeting Prostate-Specific Membrane Antigen (PSMA) have significantly changed in recent months. These changes are affecting their use in diagnostic procedures. As a result, its use within diagnostic protocols for patients with prostate cancer is undergoing significant modifications. In this collective and cooperative document, the authors have selected the most robust evidence accumulated to date to generate a clinical guide to achieve appropriate use of this technology. A format that presents the most frequent clinical situations and the patient profiles in which PSMA PET/CT plays a significant role or will do so in the immediate future has been chosen. It should be taken into account that regulatory restrictions mediate the current indications for its use in Spain, as well as its current cost and the production capacity of radiopharmaceuticals. The guideline presents a review of the established methodology for optimized imaging with each of the radiopharmaceutical variants targeting PSMA and recommendations for structured and accurate reporting of metabolic findings in combination with CT.</p></div>","PeriodicalId":48986,"journal":{"name":"Revista Espanola De Medicina Nuclear E Imagen Molecular","volume":"43 5","pages":"Article 500045"},"PeriodicalIF":1.6,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142168705","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Valor del análisis de la textura radiómica de la masa primaria y el ganglio linfático mediastínico de la PET/TC en la supervivencia de pacientes con cáncer de pulmón de célula no pequeña","authors":"N. Agüloğlu , A. Aksu , D.S. Unat , Ö. Selim Unat","doi":"10.1016/j.remn.2024.500027","DOIUrl":"10.1016/j.remn.2024.500027","url":null,"abstract":"<div><h3>Objective</h3><p>This study was designed to determine the potential prognostic value of radiomic texture analysis and metabolic-volumetric parameters obtained from positron emission tomography (PET) in primary mass and metastatic hilar/mediastinal lymph nodes in stage 2-3 non-small cell lung cancer (NSCLC).</p></div><div><h3>Methods</h3><p>Images of patients diagnosed with stage 2-3 NSCLC who underwent 18F-FDG PET/CT imaging for staging up to 4 weeks before the start of treatment were evaluated using LIFEx software. Volume of interest (VOI) was generated from the primary tumor and metastatic lymph node separately, and volumetric and textural features were obtained from these VOIs. The relationship between the parameters obtained from PET of primary mass and the metastatic hilar/mediastinal lymph nodes with overall survival (OS) and progression-free survival (PFS) was analyzed.</p></div><div><h3>Results</h3><p>When radiomic features, gender and stage obtained from lymph nodes were evaluated by Cox regression analysis; GLCM_correlation (p<!--> <span>=</span> <!-->0.033, HR: 4.559, 1.660-12.521, 95% CI), gender and stage were determined as prognostic factors predicting OS. In predicting PFS; stage, smoking and lymph node MTV (p<!--> <span>=</span> <!-->0.033, HR: 1.008, 1.001-1.016, 95% CI) were determined as prognostic factors. However, the radiomic feature of the primary tumor could not show a significant relationship with either OS or PFS.</p></div><div><h3>Conclusions</h3><p>In a retrospective cohort of NSCLC patients with Stage 2 and 3 disease, volumetric and radiomic texture characteristics obtained from metastatic lymph nodes were associated with PFS and OS. Tumor heterogeneity, defined by radiomic texture features of 18F-FDG PET/CT images, may provide complementary prognostic value in NSCLC.</p></div>","PeriodicalId":48986,"journal":{"name":"Revista Espanola De Medicina Nuclear E Imagen Molecular","volume":"43 5","pages":"Article 500027"},"PeriodicalIF":1.6,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142168703","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
A. Padilla Bermejo, J. Gatón Ramírez, F.J. Pena Pardo, M. de las Nieves Sicilia Pozo, M. del Prado Talavera Rubio, V. Poblete García
{"title":"Resección incompleta en un raro caso de paraganglioma vesical evidenciado mediante 123I-MIBG SPECT/TC con diurético","authors":"A. Padilla Bermejo, J. Gatón Ramírez, F.J. Pena Pardo, M. de las Nieves Sicilia Pozo, M. del Prado Talavera Rubio, V. Poblete García","doi":"10.1016/j.remn.2024.500018","DOIUrl":"10.1016/j.remn.2024.500018","url":null,"abstract":"","PeriodicalId":48986,"journal":{"name":"Revista Espanola De Medicina Nuclear E Imagen Molecular","volume":"43 5","pages":"Article 500018"},"PeriodicalIF":1.6,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142168060","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
P. Abreu , F. Guallart , C. Siscar , M.A. Navas , L. Casas , F. Montenegro
{"title":"Comparación de la imagen intraoperatoria con gammacámara portátil con la anatomía patológica extemporánea en la cirugía mínimamente invasiva del hiperparatiroidismo primario","authors":"P. Abreu , F. Guallart , C. Siscar , M.A. Navas , L. Casas , F. Montenegro","doi":"10.1016/j.remn.2024.500030","DOIUrl":"10.1016/j.remn.2024.500030","url":null,"abstract":"<div><h3>Introduction</h3><p>The curative treatment of primary hyperparathyroidism (PPH) is surgical and today it can be performed by minimally invasive surgery (MIS) and also be radioguided (RG) if a radiopharmaceutical with affinity for the parathyroid tissue that can be detected with gamma-detector probes or with a portable gamma camera (PGC) is injected.</p></div><div><h3>Aim</h3><p>The objective is to assess whether intraoperative scintigraphy (GGio) with PGC can replace intraoperative pathological anatomy (APio) to determine if the removed specimen is an abnormal parathyroid.</p></div><div><h3>Material and method</h3><p>Ninety-two patients underwent CMI-RG-HPP with PGC after administration of a dose of 99mTc-MIBI. The information provided by the PGC in the analysis of the excised specimens is qualitatively compared (capture yes/no) with the result of the intraoperative pathological anatomy (APio). The gold standard is the definitive histology.</p></div><div><h3>Results</h3><p>One hundred twenty excised pieces are evaluated with GGio and APio. There were 110 agreements (95<!--> <!-->TP and 15<!--> <!-->TN) and 10 disagreements (3<!--> <!-->FP and 7<!--> <!-->FN). Of the 120 lesions, 102 were parathyroid and 18 were non-parathyroid. There was good agreement between intraoperative scintigraphy imaging (GGio) and PA, 70.1% according to Cohen's Kappa index. The GGio presented the following values of sensitivity, specificity, positive predictive value, negative predictive value, positive likelihood ratio, negative likelihood ratio and overall value of the test (93.1%, 83.3%, 96.9%, 68.2%, 5.59, 0.08 and 0.92 respectively).</p></div><div><h3>Conclusion</h3><p>GGio is a rapid and effective surgical aid technique to confirm/rule out the possible parathyroid nature of the lesions removed in PPH surgery, but it cannot replace histological study.</p></div>","PeriodicalId":48986,"journal":{"name":"Revista Espanola De Medicina Nuclear E Imagen Molecular","volume":"43 5","pages":"Article 500030"},"PeriodicalIF":1.6,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141695643","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Hallazgos de gammagrafía ósea con [99mTc]Tc-MDP y PET/TC con [18F]FDG en un osteosarcoma con metástasis extraesqueléticas calcificadas generalizadas","authors":"N. Filizoglu , S. Ozguven","doi":"10.1016/j.remn.2024.500022","DOIUrl":"10.1016/j.remn.2024.500022","url":null,"abstract":"","PeriodicalId":48986,"journal":{"name":"Revista Espanola De Medicina Nuclear E Imagen Molecular","volume":"43 5","pages":"Article 500022"},"PeriodicalIF":1.6,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141706054","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
J.R. Garcia , R. Olivero , I. Arrieta-Aldea , J.A. Romero , E. Riera , E. Cañas-Ruano , N. Garrido , J. Du , R. Guerri
{"title":"Asociación entre la inflamación cardiovascular y los cambios del sistema inmune inducidos por la infección por VIH mediante PET/RM con [18F]FDG","authors":"J.R. Garcia , R. Olivero , I. Arrieta-Aldea , J.A. Romero , E. Riera , E. Cañas-Ruano , N. Garrido , J. Du , R. Guerri","doi":"10.1016/j.remn.2024.500042","DOIUrl":"10.1016/j.remn.2024.500042","url":null,"abstract":"<div><h3>Objective</h3><p>To assess by [<sup>18</sup>F]FDG PET/MR the biomarkers of HIV-induced inflammation at baseline and 1 year post-antiretroviral therapy (ART).</p></div><div><h3>Methods</h3><p>Prospective study, 14 patients, newly diagnosed HIV-positive, asymptomatic.</p><p>[<sup>18</sup>F]FDG PET/MRI (PET/MR-3.0<!--> <!-->T, Signa.GE) whole body and heart was performed, baseline and 1 year post-ART.</p><p>Qualitative vascular assessment (hepatic reference). Quantitative assessment (SUVmax) of the whole body. T1 and T2 value estimation in 16 myocardial segments.</p></div><div><h3>Results</h3><p>Baseline CMR showed in 3 (21.4%) a decreased LVEF, normalising post-TAR. Fibrosis was ruled out (T1), with no signs of myocardial oedema (T2) at baseline or post-TAR.</p><p>Four (28.6%) showed baseline vascular [<sup>18</sup>F]FDG uptake, two in ascending thoracic aorta and two in ascending and descending thoracic aorta, normalising post-TAR.</p><p>All (100%) showed basal lymph-nodes activity; supra (n:14) and infradiaphragmatic (n:13), laterocervical (n:14) and inguinal (n:13), with variable number of territories (9 patients<!--> <!-->>6; 64.3%). Post-ART, 7 patients (50%) showed resolution and the other 7 reduction in extension (0 patients<!--> <!-->>5): 7 supra (100%) and 2 infradiaphragmatic (28.6%), 5 in the axilla and 2 in the groin.</p><p>All (100%) had persistent basal adenoid uptake post-ART, 9 (64.3%) splenic all resolved post-ART and 7 (50.5%) gastric, persistent 3 post-ART.</p></div><div><h3>Conclusions</h3><p>Cardiovascular biomarkers by [<sup>18</sup>F]FDG PET/MR have shown baseline 28.6% of patients with large vessel activity and 21.4% with low LVEF, normalising post-ART.</p><p>Inflammatory/immune biomarkers showed baseline activity in 100% of lymph-nodes, 100% adenoids, 64.3% splenic and 50.5% gastric. Post-TAR the reduction was 50% lymph-nodes, 0% adenoid, 100% splenic and 57.1% gastric.</p></div>","PeriodicalId":48986,"journal":{"name":"Revista Espanola De Medicina Nuclear E Imagen Molecular","volume":"43 5","pages":"Article 500042"},"PeriodicalIF":1.6,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142168702","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Radioteragnosis en paragangliomas y feocromocitomas","authors":"","doi":"10.1016/j.remn.2024.500017","DOIUrl":"10.1016/j.remn.2024.500017","url":null,"abstract":"<div><p>This continuing education aims to present in a clear and easy-to-understand manner the biology of paragangliomas and pheochromocytomas (PPGLs), the functional imaging studies available for their diagnosis and therapeutic planning, the requirements necessary to administer radioligand therapy (RLT) and the characteristics of these treatments (inclusion criteria, administration protocols, adverse effects and future perspectives).</p><p>In this pathology we have two RLT options: [<sup>131</sup>I]MIBG and [<sup>177</sup>Lu]Lu-DOTA-TATE. The indication for treatment is determined by the expression of its therapeutic target in functional imaging studies, allowing precision and personalized medicine.</p><p>Although most of the results we have for both treatments have as origin small retrospective series, RLT is presented as a safe and well-tolerated therapeutic option in PPGLs with slow-moderate progression or with uncontrollable symptoms, obtaining high disease control rates.</p></div>","PeriodicalId":48986,"journal":{"name":"Revista Espanola De Medicina Nuclear E Imagen Molecular","volume":"43 4","pages":"Article 500017"},"PeriodicalIF":1.6,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141405964","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
H. Şan , Ö. Bayrakçi , B. Çağdaş , M. Serdengeçti , E. Alagöz
{"title":"Análisis de confiabilidad y lectibilidad de ChatGPT-4 y Google Gard como fuente de información del paciente para los tratamientos con radionúclidos más comúnmente aplicados en pacientes con cáncer","authors":"H. Şan , Ö. Bayrakçi , B. Çağdaş , M. Serdengeçti , E. Alagöz","doi":"10.1016/j.remn.2024.500021","DOIUrl":"10.1016/j.remn.2024.500021","url":null,"abstract":"<div><h3>Purpose</h3><p>Searching for online health information is a popular approach employed by patients to enhance their knowledge for their diseases. Recently developed AI chatbots are probably the easiest way in this regard. The purpose of the study is to analyze the reliability and readability of AI chatbot responses in terms of the most commonly applied radionuclide treatments in cancer patients.</p></div><div><h3>Methods</h3><p>Basic patient questions, thirty about RAI, PRRT and TARE treatments and twenty-nine about PSMA-TRT, were asked one by one to GPT-4 and Bard on January 2024. The reliability and readability of the responses were assessed by using DISCERN scale, Flesch Reading Ease(FRE) and Flesch-Kincaid Reading Grade Level(FKRGL).</p></div><div><h3>Results</h3><p>The mean (SD) FKRGL scores for the responses of GPT-4 and Google Bard about RAI, PSMA-TRT, PRRT and TARE treatments were 14.57 (1.19), 14.65 (1.38), 14.25 (1.10), 14.38 (1.2) and 11.49 (1.59), 12.42 (1.71), 11.35 (1.80), 13.01 (1.97), respectively. In terms of readability the FRKGL scores of the responses of GPT-4 and Google Bard about RAI, PSMA-TRT, PRRT and TARE treatments were above the general public reading grade level. The mean (SD) DISCERN scores assesses by nuclear medicine phsician for the responses of GPT-4 and Bard about RAI, PSMA-TRT, PRRT and TARE treatments were 47.86 (5.09), 48.48 (4.22), 46.76 (4.09), 48.33 (5.15) and 51.50 (5.64), 53.44 (5.42), 53 (6.36), 49.43 (5.32), respectively. Based on mean DISCERN scores, the reliability of the responses of GPT-4 and Google Bard about RAI, PSMA-TRT, PRRT, and TARE treatments ranged from fair to good. The inter-rater reliability correlation coefficient of DISCERN scores assessed by GPT-4, Bard and nuclear medicine physician for the responses of GPT-4 about RAI, PSMA-TRT, PRRT and TARE treatments were 0.512 (95% CI 0.296: 0.704), 0.695 (95% CI 0.518: 0.829), 0.687 (95% CI 0.511: 0.823) and 0.649 (95% CI 0.462: 0.798), respectively (<em>P</em><.01). The inter-rater reliability correlation coefficient of DISCERN scores assessed by GPT-4, Bard and nuclear medicine physician for the responses of Bard about RAI, PSMA-TRT, PRRT and TARE treatments were 0.753 (95% CI 0.602: 0.863), 0.812 (95% CI 0.686: 0.899), 0.804 (95% CI 0.677: 0.894) and 0.671 (95% CI 0.489: 0.812), respectively (<em>P</em><.01). The inter-rater reliability for the responses of Bard and GPT-4 about RAİ, PSMA-TRT, PRRT and TARE treatments were moderate to good. Further, consulting to the nuclear medicine physician was rarely emphasized both in GPT-4 and Google Bard and references were included in some responses of Google Bard, but there were no references in GPT-4.</p></div><div><h3>Conclusion</h3><p>Although the information provided by AI chatbots may be acceptable in medical terms, it can not be easy to read for the general public, which may prevent it from being understandable. Effective prompts using ‘prompt engineering’ may refine the responses","PeriodicalId":48986,"journal":{"name":"Revista Espanola De Medicina Nuclear E Imagen Molecular","volume":"43 4","pages":"Article 500021"},"PeriodicalIF":1.6,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141839048","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}