Polish journal of radiology最新文献

{"title":"Analysis of small abdominal aortic aneurysms with the radiotracer technetium-99m- 6-hydrazinylnicotinoyl-C-C-chemokine receptor-2 ligand (^99mTc-HYNIC-CCR2-L) with single-photon emission computed tomography.","authors":"Javier E Anaya-Ayala, Brenda J Galicia-Vega, Jacqueline Mejia-Cervantes, Eleazar Ignacio-Alvarez, Ingrid A Landero-Aguilar, Guillermina Ferro-Flores, Brenda N Marquina-Castillo, Brenda Gibbens-Bandala, Carlos A Hinojosa","doi":"10.5114/pjr/194210","DOIUrl":"https://doi.org/10.5114/pjr/194210","url":null,"abstract":"<p><strong>Purpose: </strong>Monocyte chemoattractant protein-1 (MCP-1/CCL2) plays a key role for infiltration of monocytes/macrophages and studies have demonstrated that the MCP-1/C-C chemokine receptor 2 (CCR2) axis might be involved in the pathogenesis and progression of abdominal aortic aneurysms (AAA). Molecular imaging has shown potential for human clinical research studies. We evaluated the expression of CCR2 in patients with small AAA using single-photon emission computed tomography (SPECT) with the technetium-99m-6-hydrazinylnicotinoyl-C-C-chemokine receptor-2 ligand (^99mTc-HYNIC-CCR2-L).</p><p><strong>Material and methods: </strong>A pilot study was performed to evaluate patients with small asymptomatic AAA. The equipment used was a Symbia T2 (Siemens, Germany), with radiolabeled ^99mTc-HYNIC-CCR2-L. The SPECT uptake and activity were assessed and counted based on the region of interest (ROI), with nonparametric statistics being employed to compare the aneurysms site, left ventricle (Control 1) and regions with a nondiseased aorta (Control 2).</p><p><strong>Results: </strong>The three patients were male (100%) (mean age 81 years, and mean AAA maximum diameter of 40 mm, SD 3 mm). All patients tolerated the studies well. Images were obtained at one, two and four hours. The ROI mean value of the aneurysm site was 37,783 (SD 11,890), compared to the left ventricle (Control 1) 16,779 (SD 4397) (<i>p-</i>value = 0.0001); ROI for the nondiseased aortic region (Control 2) was significantly lower, 12,520 (SD 2141) (<i>p-</i>value = 0.0001).</p><p><strong>Conclusions: </strong>Significant differences of CCR2 expression SPECT were found in the AAA site compared to the left ventricle and nondiseased aortic segments. The introduction of well-designed longitudinal studies with nuclear imaging modalities may assist in the molecular characterization of aneurysmal and rupture prediction.</p>","PeriodicalId":94174,"journal":{"name":"Polish journal of radiology","volume":"89 ","pages":"e541-e548"},"PeriodicalIF":0.0,"publicationDate":"2024-11-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11705040/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142960600","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Imaging of intramedullary tumours of the spinal cord.","authors":"Marek Sąsiadek, Charles Romanowski, Jagoda Jacków-Nowicka","doi":"10.5114/pjr/192424","DOIUrl":"https://doi.org/10.5114/pjr/192424","url":null,"abstract":"<p><p>Intramedullary tumours (IMTs) are the least common neoplasms of the spinal canal. The majority of them are ependymomas and astrocytomas, the third commonest is haemangioblastoma, while other tumours of the spinal cord are relatively rare. This review presents on update on the imaging of spinal cord tumours. Magnetic resonance imaging (MRI) is the imaging method of choice in diagnosing IMTs, with other modalities playing a supplementary role. The authors discuss the MRI protocol in IMTs including advanced techniques and present the imaging features of particular tumours. The differentiation of IMTs from other spinal cord diseases is also presented.</p>","PeriodicalId":94174,"journal":{"name":"Polish journal of radiology","volume":"89 ","pages":"e531-e540"},"PeriodicalIF":0.0,"publicationDate":"2024-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11705043/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142960647","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Percutaneous cryoablation of renal tumours under computed tomography guidance: methodology of the procedure.","authors":"Maciej Guziński, Wojciech Krajewski, Wojciech Tomczak, Łukasz Nowak, Jan Łaszkiewicz, Joanna Chorbińska, Adam Chełmoński, Bartosz Małkiewicz, Tomasz Szydełko","doi":"10.5114/pjr/193205","DOIUrl":"https://doi.org/10.5114/pjr/193205","url":null,"abstract":"<p><strong>Purpose: </strong>The incidence of renal cell carcinoma has been steadily increasing over the past two decades, raising the need for minimally invasive approaches. We sought to present the methodology of the percutaneous cryoablation (PCA) procedure developed based on one year of experience with 81 PCA procedures.</p><p><strong>Material and methods: </strong>The percutaneous cryoablation programme at Wroclaw Medical University Hospital has been successfully operating for a year. During this period, patients who were ineligible for partial nephrectomy either because of numerous comorbidities or strong preference against surgery were treated with PCA. Each procedure was conducted with the close cooperation of an interventional radiologist and a urologist.</p><p><strong>Results: </strong>Over the past year, 81 procedures in 74 individuals have been performed and thoroughly analysed. The mean and median effective radiation doses were 12.57 mSv and 10.76 mSv, respectively. Comprehensive details of our workflow are described within the body of the manuscript.</p><p><strong>Conclusions: </strong>Percutaneous cryoablation is a technically effective treatment approach for carefully selected individuals with small renal masses. However, starting a PCA programme from scratch necessitates creation of detailed protocols, as well as close interventional radiologist and urologist cooperation. This review outlines the established workflow and shares insights gained from one year of experience with percutaneous cryoablation.</p>","PeriodicalId":94174,"journal":{"name":"Polish journal of radiology","volume":"89 ","pages":"e526-e530"},"PeriodicalIF":0.0,"publicationDate":"2024-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11704947/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142960653","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"In response to the article \"Comparison of posterior cranial fossa morphometric measurements in Chiari type I patients with and without syrinx cavity on magnetic resonance imaging\". Pol J Radiol 2022; 87: e694-e700.","authors":"Ertuğrul H Özay, Begumhan Baysal","doi":"10.5114/pjr/193073","DOIUrl":"https://doi.org/10.5114/pjr/193073","url":null,"abstract":"","PeriodicalId":94174,"journal":{"name":"Polish journal of radiology","volume":"89 ","pages":"e524-e525"},"PeriodicalIF":0.0,"publicationDate":"2024-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11704946/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142960649","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Added value of volumetric MRI pulse sequence 3D VISTA (Volume ISotopic Turbo spin echo Acquisition) in perianal fistula depiction and characterization.","authors":"Ahmed I Tawfik, Amir M Eltantawy, Mohamed Mohsen, Mohamed M Harraz","doi":"10.5114/pjr/193232","DOIUrl":"https://doi.org/10.5114/pjr/193232","url":null,"abstract":"<p><strong>Purpose: </strong>Diagnosis of perianal fistula represents a challenge for surgeons. It is well known that magnetic resonance imaging (MRI) plays an important role in that. The new 3D MRI sequence VISTA (Volume ISotopic Turbo spin echo Acquisition) can improve detection and characterization of perianal fistula compared with two-dimensional (2D) sequences. The aim of the study was to compare the diagnostic performance of the new 3D MRI sequence VISTA with the widely routinely used T2 FSE pulse sequence in depiction and characterization of perianal fistula by using the contrast-enhanced (CE) 3D T1 sequence THRIVE (T1-weighted high-resolution isotropic volume examination) as a reference standard.</p><p><strong>Material and methods: </strong>Forty adult patients were enrolled in this prospective study. They underwent MRI perianal region examination using routine T2 TSE and CE 3D T1 sequence THRIVE with addition of the new 3D MRI sequence VISTA. T2, 3D VISTA and (CE) 3D T1 sequence THRIVE images were evaluated by two radiologists separately for detection and characterization of perianal fistula, then comparison between of T2 and 3D VISTA sequences was done using (CE) 3D T1 sequence THRIVE as a reference. Each sequence sensitivity, specificity and accuracy were calculated by both readers.</p><p><strong>Results: </strong>For reader 1, the sensitivity, specificity and accuracy were 92.5%, 90.5% and 93.6% for 3D VISTA and 84.1%, 83.7% and 87.3% for T2 FSE. For reader 2, the sensitivity, specificity and accuracy were 91.5%, 92.8% and 94.8% for 3D VISTA and 82.9%, 84.5% and 86.7% for T2 FSE.</p><p><strong>Conclusions: </strong>Using CE 3D T1 sequence THRIVE as the reference standard, 3D VISTA pulse sequence on the perianal region has better diagnostic performance in the detection and characterization of perianal fistula as compared to the routinely used T2 FSE sequence.</p>","PeriodicalId":94174,"journal":{"name":"Polish journal of radiology","volume":"89 ","pages":"e517-e523"},"PeriodicalIF":0.0,"publicationDate":"2024-11-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11704945/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142960598","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Advancing radiology education for medical students: leveraging digital tools and resources.","authors":"Thomas Stirrat, Robert Martin, Muhammad Umair, Joseph Waller","doi":"10.5114/pjr/193518","DOIUrl":"10.5114/pjr/193518","url":null,"abstract":"<p><p>This study evaluates diverse educational resources to address the gaps in diagnostic radiology education for medical students, aiming to identify tools that enhance theoretical knowledge and practical diagnostic skills. Employing a multi-faceted review, we analyzed digital platforms, academic databases, and social media for resources beneficial to medical students in radiology, assessing their accessibility, content quality, and educational value. Our investigation uncovered a broad spectrum of resources, from foundational platforms to advanced simulation tools, varying in their approach to teaching radiology. Traditional resources provide essential theoretical knowledge, while digital tools, including interactive case studies and multimedia content, offer immersive learning experiences. Notably, resources integrating machine learning and social media facilitate dynamic, peer-to-peer learning and up-to-date case discussions. Despite the minimal current focus on VR, its role in enhancing interactive learning is notable. The diversity in educational tools highlights the evolving nature of radiology education, reflecting a shift towards more engaging and practical learning methodologies. Identifying and integrating a variety of educational resources into radiology education can significantly enhance learning outcomes for medical students, preparing them for the complexities of modern diagnostic radiology with a well-rounded educational approach.</p>","PeriodicalId":94174,"journal":{"name":"Polish journal of radiology","volume":"89 ","pages":"e508-e516"},"PeriodicalIF":0.0,"publicationDate":"2024-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11538907/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142592344","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Application of ultrasound-guided intranodal lymphangiography in the diagnosis and treatment of chylous ascites after abdominal surgery.","authors":"Juncheng Wan, Wen Zhang, Caihong Yu, Changyu Li, Yongjie Zhou, Wei Zhang, Zhuoyang Fan, Chaoqiao Jin, Xudong Qu","doi":"10.5114/pjr/193577","DOIUrl":"10.5114/pjr/193577","url":null,"abstract":"<p><strong>Purpose: </strong>Chylous leakage is a serious and challenging postoperative complication. The purpose of this study was to explore the application of ultrasound-guided intranodal lymphangiography in the diagnosis and treatment of chylous ascites following abdominal surgery.</p><p><strong>Material and methods: </strong>Ten patients with chylous ascites after abdominal surgery after ineffective conservative treatment such as low-fat diet, parenteral nutrition, and negative pressure drainage were included in this single-center retrospective study. Of these 10 patients, 9 developed chylous ascites after liver surgery, and 1 after a radical gastrectomy.</p><p><strong>Results: </strong>Lymphangiography was successfully performed in all 10 patients. The average dosage of lipiodol used was 4.5 ml (range 3.5-7.0 ml). No procedure-related complications were observed after excluding unrelated factors. During lymphangiography, lipiodol leakage was directly observed in 3 cases, and in the other 5 cases, it was detected through abdominal computed tomography post-lymphangiography. Chylous ascites resolved solely through lymphangiography in 6 patients without requiring additional surgical intervention.</p><p><strong>Conclusions: </strong>Lymphangiography may help identify leakage sites in patients with chylous ascites unresponsive to conservative treatment and could potentially be effective in treating chylous ascites following abdominal surgery.</p>","PeriodicalId":94174,"journal":{"name":"Polish journal of radiology","volume":"89 ","pages":"e502-e507"},"PeriodicalIF":0.0,"publicationDate":"2024-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11538909/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142592513","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Medication-induced changes on magnetic resonance imaging of the brain.","authors":"Monika Bekiesinska-Figatowska, Barbara Bobek-Billewicz","doi":"10.5114/pjr/192463","DOIUrl":"10.5114/pjr/192463","url":null,"abstract":"<p><p>In this review the authors focus on abnormal brain magnetic resonance imaging caused by drugs given to patients in any age group for any disease. The review includes viral infections with fever in children/infections in general, epilepsy, psychiatric diseases, multiple sclerosis, neoplasms, bone marrow/organ transplantations, total parenteral nutrition, vaccinations, oral contraceptives and other prothrombotic drugs, and gadolinium deposition. Knowledge of patients' diseases and medications they receive is crucial to establish the correct diagnosis. The absence of these data in a referral for a brain MRI scan can result in completely wrong suspicions and unleash unnecessary, complicated, time-consuming and expensive diagnostics, causing additional stress in patients and their guardians.</p>","PeriodicalId":94174,"journal":{"name":"Polish journal of radiology","volume":"89 ","pages":"e488-e501"},"PeriodicalIF":0.0,"publicationDate":"2024-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11538910/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142592347","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The peritumoral brain zone in glioblastoma: a review of the pretreatment approach.","authors":"Anna Michalska-Foryszewska, Maciej Bujko, Agnieszka Kwiatkowska-Miernik, Katarzyna Ziemba, Katarzyna Sklinda, Jerzy Walecki, Bartosz Mruk","doi":"10.5114/pjr/192044","DOIUrl":"10.5114/pjr/192044","url":null,"abstract":"<p><p>Glioblastomas are the most common and aggressive form of malignant primary brain tumors in adults. The standard treatment is surgical resection followed by radiotherapy and chemotherapy. Despite optimal treatment methods, the prognosis for patients remains poor. Preoperative determination of glioblastoma margins remains beneficial for the complete removal of the tumor mass. Radiotherapy is essential for post-surgery treatment, but radioresistance is a significant challenge contributing to high mortality rates. Advanced imaging technologies are used to analyze the changes in the peritumoral brain zone (PTZ). Consequently, they may lead to the development of novel therapeutic options, especially targeting the marginal parts of a tumor, which could improve the prognosis of glioblastoma patients. The clinical presentation of glioblastoma is heterogeneous and mostly depends on the location and size of a tumor. Glioblastomas are characterized by both intratumoral cellular heterogeneity and an extensive, diffuse infiltration into the normal tissue bordering a tumor called the PTZ. Neuroimaging techniques, such as diffusion-weighted imaging (DWI), diffusion tensor imaging (DTI), perfusion-weighted imaging (PWI), proton magnetic resonance spectroscopy (¹H MRS), and chemical exchange saturation transfer (CEST) are useful methods in the evaluation of the tumor infiltration and thus the resection margin.</p>","PeriodicalId":94174,"journal":{"name":"Polish journal of radiology","volume":"89 ","pages":"e480-e487"},"PeriodicalIF":0.0,"publicationDate":"2024-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11538905/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142592350","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Comparative efficacy of contrast-enhanced ultrasound versus B-mode ultrasound in the diagnosis and monitoring of hepatic abscesses.","authors":"Adam Dobek, Mateusz Kobierecki, Wojciech Ciesielski, Oliwia Grząsiak, Konrad Kosztowny, Adam Fabisiak, Piotr Białek, Ludomir Stefańczyk","doi":"10.5114/pjr/192184","DOIUrl":"10.5114/pjr/192184","url":null,"abstract":"<p><strong>Purpose: </strong>This study aimed to evaluate the diagnostic value of contrast-enhanced ultrasound (CEUS) in diagnosing and monitoring hepatic abscesses (HA).</p><p><strong>Material and methods: </strong>This retrospective study included 29 patients (9 females, 20 males) with 64 HA. Computed tomography (CT) served as the diagnostic benchmark, compared with CEUS and B-mode ultrasound (B-mode). Two radiologists assessed the presence, size, and characteristics of the HA.</p><p><strong>Results: </strong>The contrast enhancement pattern on CEUS matched post-contrast CT. Lesion size detected by CEUS ranged from 1.16 cm to 15.33 cm (median 5.74 cm). CT classified lesions into four types: I (tumor-like) - 2, II (honeycomb) - 5, III (lacunar) - 23, IV (cystic-like) - 34. CEUS fully agreed with these classifications. B-mode missed two type I lesions. For type III abscesses, agreement with CEUS was perfect (κ = 1, 100%), and moderate with B-mode (κ = 0.50, 79.7%). For type IV abscesses, agreement with CEUS was perfect (κ = 1, 100%), and high with B-mode (κ = 0.88, 93.75%). Pus enhancement remained stable (± 15 dB), while the abscess pouch background varied (± 11 dB to ± 6 dB). The Mann-Whitney <i>U</i> test confirmed these observations (arterial: <i>p</i> = 1.02e-14, portal: <i>p</i> = 3.79e-12, late venous: <i>p</i> = 4.53e-13). No significant difference in enhancement values was found based on abscess size (> 4 cm vs. < 4 cm).</p><p><strong>Conclusions: </strong>CEUS is superior to B-mode for diagnosing and monitoring HA, offering clearer views of the abscess pouch, septa, and liver parenchyma. The purulent part lacks contrast, allowing accurate assessment. CEUS can replace CT for monitoring and aid in patient selection for percutaneous intervention.</p>","PeriodicalId":94174,"journal":{"name":"Polish journal of radiology","volume":"89 ","pages":"e470-e479"},"PeriodicalIF":0.0,"publicationDate":"2024-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11538908/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142592346","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}