World journal of radiology最新文献

{"title":"Cardiac magnetic resonance imaging contributing to primary prevention and secondary prevention of sudden cardiac death: Contemporary usefulness and limitations.","authors":"Yasuo Amano, Kazuki Iso, Yasuyuki Suzuki, Masaki Tachi","doi":"10.4329/wjr.v17.i7.107140","DOIUrl":"10.4329/wjr.v17.i7.107140","url":null,"abstract":"<p><p>Sudden cardiac death (SCD) is one of the most devastating sequelae of myocardial diseases and can be the initial symptom in younger athletes or middle-aged businesspeople. An implantable cardioverter defibrillator (ICD) prevents SCD and dramatically reduces the arrhythmic events in these patients; hence, the risk stratification for the SCD is important. In survivors of out-of-hospital cardiac arrest, identification of its etiologies is required to select the appropriate treatments following ICD installation. Cardiac magnetic resonance imaging (MRI) is useful for evaluating the morphology and function of the heart and for tissue characterization, MRI can therefore be used to stratify the risk of SCD associated with various myocardial diseases and leads to primary prevention using ICD. MRI can predict arrhythmic events, which suggest the progression of myocardial damage, following secondary prevention. In this review, we provide a clinical and MRI focused update and MRI protocol for the primary and secondary prevention of SCD. We summarize the contribution and limitations of cardiac MRI for prevention SCD using ICD implantation.</p>","PeriodicalId":23819,"journal":{"name":"World journal of radiology","volume":"17 7","pages":"107140"},"PeriodicalIF":1.5,"publicationDate":"2025-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12308606/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144761543","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":"Role of computed tomography in the assessment of caustic ingestion severity: A comprehensive review.","authors":"Alberto Martino, Marco Di Serafino, Francesco Paolo Zito, Luigi Orsini, Lorena Pietrini, Antonella Menchise, Martina Cargiolli, Lorenzo Anastasio, Rossana Martino, Raffaele Bennato, Giovanni Lombardi","doi":"10.4329/wjr.v17.i7.109172","DOIUrl":"10.4329/wjr.v17.i7.109172","url":null,"abstract":"<p><p>Caustic ingestion is a relatively rare but potentially catastrophic gastroenterological emergency. Upper gastrointestinal (GI) endoscopy is currently regarded as the gold standard modality not only to assess the depth and the extension of GI caustic injury, but also to guide the appropriate treatment. Intriguingly, contrast-enhanced computed tomography (CECT) has recently emerged as a promising non-invasive and more accurate alternative to endoscopy in this setting. However, to date, evidence concerning the role of CECT as an alternative or complementary diagnostic tool to endoscopy in caustic ingestion is still limited. The aim of our review was to summarize and discuss the current evidence concerning the role of CECT in the emergency diagnosis of caustic ingestion and its value in assessing injury severity among non-pediatric patients.</p>","PeriodicalId":23819,"journal":{"name":"World journal of radiology","volume":"17 7","pages":"109172"},"PeriodicalIF":1.5,"publicationDate":"2025-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12308572/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144761549","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":"Value of two-dimensional shear wave elastography quantitative analysis for evaluation of thyroid function in first trimester pregnancy.","authors":"Hui-Ping Zhang, Miao-Ling Chen, Jie Zou, Yu-Qing Zhou","doi":"10.4329/wjr.v17.i6.107315","DOIUrl":"10.4329/wjr.v17.i6.107315","url":null,"abstract":"<p><strong>Background: </strong>Thyroid dysfunction during pregnancy is an important disease affecting the health of mothers and children. Two-dimensional (2D) shear wave elastography (SWE) is the newest ultrasonic elastography technology and its value in differentiating benign and malignant thyroid nodules has been widely recognized. However, the value of 2D SWE in evaluating and predicting thyroid function is unclear.</p><p><strong>Aim: </strong>To explore prospectively the value of 2D SWE quantitative analysis for the evaluation of thyroid function in the first trimester.</p><p><strong>Methods: </strong>We included outpatients of reproductive age in the Department of Gynecology in Shanghai Changning Maternity and Infant Health Hospital between March 2023 and March 2024 who had conventional ultrasound examination and 2D SWE of the thyroid. They also underwent transvaginal ultrasound examination to confirm early intrauterine pregnancy and serum thyroid stimulating hormone (TSH) level was measured. The patients were divided into pregnant with normal TSH, pregnant with abnormal TSH, and nonpregnant with normal TSH. Conventional ultrasound and 2D SWE results were compared among the three groups.</p><p><strong>Results: </strong>A total of 108 patients were included in the study; 57 in the pregnant with normal TSH group, 18 in the pregnant with abnormal TSH group and 33 were in the nonpregnant with normal TSH group. Thyroid size, thyroid echotexture, 2D SWE quantitative parameters including mean elasticity in the region of interest and maximal elasticity in the region of interest showed no significant differences among the three groups (<i>P</i> > 0.05).</p><p><strong>Conclusion: </strong>Conventional ultrasound and 2D SWE features could not reflect the level of serum TSH.</p>","PeriodicalId":23819,"journal":{"name":"World journal of radiology","volume":"17 6","pages":"107315"},"PeriodicalIF":1.4,"publicationDate":"2025-06-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12210206/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144555109","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":"Clinical value and applicability of radiomics in differential diagnosis of dual-phenotype hepatocellular carcinoma and intrahepatic cholangiocarcinoma.","authors":"Chen-Cai Zhang, Da Lu, Jun Yang, Ling Zhang, Xia-Feng Zeng, Xiang-Ming Fang, Cun-Geng Fan","doi":"10.4329/wjr.v17.i6.108247","DOIUrl":"10.4329/wjr.v17.i6.108247","url":null,"abstract":"<p><strong>Background: </strong>Dual-phenotype hepatocellular carcinoma (HCC) is a relatively new subtype of HCC. Studies have shown that in the context of chronic hepatitis, liver cirrhosis, and other liver conditions, some intrahepatic cholangiocarcinomas (ICCs) exhibit an enhancement pattern similar to that of HCC. Both dual-phenotype HCC (DPHCC) and ICC can express biliary markers, making imaging and pathology differentiation difficult. Currently, radiomics is widely used in the differentiation, clinical staging, and prognosis assessment of various diseases. Radiomics can effectively differentiate DPHCC and ICC preoperatively.</p><p><strong>Aim: </strong>To evaluate the value of radiomics in the differential diagnosis of DPHCC and ICC and to validate its clinical applicability.</p><p><strong>Methods: </strong>In this retrospective study, the data of 53 DPHCC patients and 124 ICC patients were collected retrospectively and randomly divided into training and testing sets at a ratio of 7: 3. After delineation of regions of interest and feature extraction and selection, radiomics models were constructed. Receiver operating characteristic curve analysis was conducted to calculate the area under the curve (AUC) for each model. The AUC values of radiologists with and without assistance from the model were also assessed.</p><p><strong>Results: </strong>In the training set, the AUC value of the radiomic model was the highest, and the combined model and the radiomic model had similar AUC (<i>P</i> > 0.05); the differences in the AUC values between the combined model and the clinical-sign model was statistically significant (<i>P</i> < 0.05). In the testing set, the AUC value of the combined model was the highest, and the differences in the AUC values between the combined model and the clinical-sign model was statistically significant (<i>P</i> < 0.05). With model assistance, the AUC values of Doctor D (10 years of experience in abdominal imaging diagnosis) and Doctor E (5 years of experience in abdominal imaging diagnosis) both increased.</p><p><strong>Conclusion: </strong>Radiomics can differentiate DPHCC and ICC, and with assistance from the developed model, the accuracy of less experienced doctors in the differential diagnosis of these two diseases can be improved.</p>","PeriodicalId":23819,"journal":{"name":"World journal of radiology","volume":"17 6","pages":"108247"},"PeriodicalIF":1.4,"publicationDate":"2025-06-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12210198/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144555061","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 pediatric gastrostomy tube malposition: Pearls and pitfalls.","authors":"Dhrumil Deveshkumar Patel, Kathleen E Schenker, Lauren W Averill, Lauren A May","doi":"10.4329/wjr.v17.i6.107522","DOIUrl":"10.4329/wjr.v17.i6.107522","url":null,"abstract":"<p><p>This pictorial review discusses the imaging approach to evaluate for proper placement or complications of pediatric gastrostomy tube (G-tube) placement and long-term use. G-tubes are crucial for long-term nutritional support in patients facing challenges with oral intake. The article depicts the role of imaging such as contrast radiography, fluoroscopy, ultrasound, and computed tomography scans for confirming G-tube position and evaluating complications, in addition to basic anatomical considerations and placement techniques. Complications discussed include malposition, intraperitoneal placement, buried bumper syndrome, and tube malfunction. Specific imaging techniques and checklists are provided to guide clinicians in assessing G-tube placement accurately. The latter half of the review is a comprehensive exploration of pearls and pitfalls of imaging when employed to detect complications to avoid false positives and negatives.</p>","PeriodicalId":23819,"journal":{"name":"World journal of radiology","volume":"17 6","pages":"107522"},"PeriodicalIF":1.4,"publicationDate":"2025-06-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12210205/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144555102","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":"Diagnostic usefulness and limitation of cardiac magnetic resonance for identifying myocardial damage in survivors of cardiac arrest in midtown.","authors":"Yasuo Amano, Yasuyuki Suzuki, Kazuki Iso, Chisato Ando, Maki Amano","doi":"10.4329/wjr.v17.i6.104473","DOIUrl":"10.4329/wjr.v17.i6.104473","url":null,"abstract":"<p><strong>Background: </strong>Cardiac magnetic resonance (CMR) has been reported to identify myocardial damage inducing out-of-hospital cardiac arrest (OHCA). However, the usefulness of CMR may be affected by the medical institutions, patients' ages, and myocardial diseases.</p><p><strong>Aim: </strong>To clarify the clinical usefulness and limitation of CMR for identifying myocardial damage in the survivors of OHCA in midtown.</p><p><strong>Methods: </strong>Nineteen patients underwent CMR to detect myocardial damage related to OHCA in the midtown of a capital city. Cine, T1 and T2 mapping, T2-weighted, and late gadolinium enhancement (LGE) imaging were acquired using a 1.5 T scanner. We described the clinical characteristics of the survivors of OHCA and evaluated usefulness of CMR for identifying myocardial damage related to OHCA.</p><p><strong>Results: </strong>Among 19 patients experiencing OHCA, 7 experienced it in trains or on railway platforms, 4 while practicing sports, and 4 during their daily work. Ten of the 19 survivors were diagnosed with coronary vasospasm (CVS), in whom CMR failed to depict its characteristic findings. CMR was useful for identifying myocardial damage associated with hypertrophic cardiomyopathy (HCM) or myocardial infarction (MI). LGE was related to serious ventricular arrhythmias after implantable cardioverter defibrillator (ICD) installation in 3 patients (CVS, 2; HCM, 1).</p><p><strong>Conclusion: </strong>CMR is useful for identifying myocardial damage of HCM or MI inducing OHCA and predicting ventricular arrhythmias after ICD implantation but has limited capability for detecting myocardial damage of CVS.</p>","PeriodicalId":23819,"journal":{"name":"World journal of radiology","volume":"17 6","pages":"104473"},"PeriodicalIF":1.4,"publicationDate":"2025-06-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12210199/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144555099","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":"Role of magnetic resonance defecography in the assessment of obstructed defecation syndrome.","authors":"Arshed Hussain Parry, Basit Rehaman, Shabir Ahmad Bhat, Abdul Haseeb Wani, Majid Jehangir, Arshad Ahmed Baba","doi":"10.4329/wjr.v17.i6.107205","DOIUrl":"10.4329/wjr.v17.i6.107205","url":null,"abstract":"<p><p>Obstructed defecation syndrome (ODS) represents an important cause of constipation, primarily arising from dysfunctions within the pelvic floor. Characterized by an inability to complete defecation or effectively evacuate fecal material despite the urge to defecate, ODS results in a persistent sensation of incomplete evacuation and often requires excessive straining during defecation. Conventional clinical examinations fail to adequately assess the complex dynamic dysfunctions of the pelvic floor and anorectal region. Magnetic resonance defecography (MRD), a sophisticated form of dynamic pelvic floor imaging, provides a comprehensive, non-invasive means of visualizing and quantifying various anorectal and pelvic floor abnormalities. By allowing detailed assessment of structural and functional deficits during the defecation process, MRD plays a crucial role in the diagnostic workup of ODS, enabling colorectal surgeons to formulate more precise and individualized treatment strategies. This manuscript highlights the important anatomical and functional disorders of pelvic floor that are associated with ODS.</p>","PeriodicalId":23819,"journal":{"name":"World journal of radiology","volume":"17 6","pages":"107205"},"PeriodicalIF":1.4,"publicationDate":"2025-06-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12210197/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144555106","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":"Transforming pediatric imaging: The role of four-dimensional flow magnetic resonance imaging in quantifying mesenteric blood flow.","authors":"Arvind Mukundan, Devansh Gupta, Riya Karmakar, Hsiang-Chen Wang","doi":"10.4329/wjr.v17.i6.106582","DOIUrl":"10.4329/wjr.v17.i6.106582","url":null,"abstract":"<p><p>The article \"Assessment of superior mesenteric vascular flow quantitation in children using four-dimensional flow magnetic resonance imaging\" suggests to use of four-dimensional (4D) flow magnetic resonance imaging (MRI) which is also to measure the blood flow in the superior mesenteric vein (SMV) in pediatric patients over the traditional method. The study focuses on assessing the potential of SMV and superior mesenteric artery (SMA) flow quantification in children utilizing 4D flow MRI. It included 9 pediatric patients aged 18 years and below where 5 were male and 4 were female patients, on whom magnetic resonance enterorrhaphy (MRE) with 4D flow MRI protocol was used. Statistical analysis was performed using MedCalc. Measurements of SMV and SMA between two readers were calculated using Bland-Altman analysis. The results stated that six patients showed no MRE evidence of active inflammatory bowel disease, two patients showed unmarkable bowel appearance on MRI and one patient showed normal MRE without endoscopy performed at the same timeframe. The study utilized available 4D flow MRI sequences in this study aiming to show the feasibility of 4D flow quantitation of SMA and SMV flow in pediatric patients. The study also discovered good agreement for both peak velocity and peak speed measurements of SMA and SMV.</p>","PeriodicalId":23819,"journal":{"name":"World journal of radiology","volume":"17 6","pages":"106582"},"PeriodicalIF":1.4,"publicationDate":"2025-06-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12210194/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144555108","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":"Advances in dual energy computed tomography approach for proton stopping power ratio computation in radiotherapy.","authors":"Charles Ekene Chika","doi":"10.4329/wjr.v17.i6.105728","DOIUrl":"10.4329/wjr.v17.i6.105728","url":null,"abstract":"<p><p>To address the sensitive and uncertain limitations of single-energy computed tomography (CT) calibration methods in computing proton stopping power ratio during treatment planning, different methods have been proposed using a dual energy CT approach. This paper reviews the most recent dual-energy CT approaches for computing proton stopping power ratio. These include image domain and projection domain methods. The advantages and uncertainties of these methods are analyzed based on existing studies. This paper highlights recent advances in dual energy CT, discussing their implementation, advantages, limitations, and potential for clinical adoption.</p>","PeriodicalId":23819,"journal":{"name":"World journal of radiology","volume":"17 6","pages":"105728"},"PeriodicalIF":1.4,"publicationDate":"2025-06-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12210203/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144555049","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":"Retrospective analysis of computed tomography examinations in patients with lower abdominal pain: A single-center experience.","authors":"Kouichi Asahi","doi":"10.4329/wjr.v17.i6.105632","DOIUrl":"10.4329/wjr.v17.i6.105632","url":null,"abstract":"<p><strong>Background: </strong>Lower abdominal pain presents as a common complaint with diverse etiologies ranging from benign conditions to surgical emergencies. Computed tomography (CT) imaging has become instrumental in accurate diagnosis and management planning, though clinicians must carefully balance its benefits against radiation exposure concerns and resource allocation constraints.</p><p><strong>Aim: </strong>To comprehensively evaluate the diagnostic accuracy, utility and clinical implications of CT in patients with acute lower abdominal pain, emphasizing rare anatomical variations, pregnancy-related issues, and practical limitations of other imaging modalities in emergency settings in Japan.</p><p><strong>Methods: </strong>This retrospective review included 230 patients who underwent CT scans for acute lower abdominal pain at Juntendo University Shizuoka Hospital throughout 2014. CT findings were systematically correlated with the final clinical diagnoses. Cases with diagnostic uncertain underwent independent reviewed by two experienced radiologists. The CT protocols included portal venous-phase imaging with selective arterial-phase acquisition when clinically indicated.</p><p><strong>Results: </strong>Idiopathic pain was the most common diagnosis (104 cases, 45.2%), followed by appendicitis (46 cases, 20.0%) and diverticulitis (27 cases, 11.7%). Right lower quadrant pain predominantly revealed appendicitis (20.2%), whereas left lower quadrant pain frequently indicated diverticulitis (12.1%). Nonspecific pain cases have diverse etiologies. Rare conditions included situs inversus (one case) and intestinal malrotation (one case). Pregnancy-related diagnoses included acute appendicitis and uterine fibroid degeneration.</p><p><strong>Conclusion: </strong>CT significantly aids in the diagnosis of lower abdominal pain, especially given limited access to ultrasonography and MRI during emergency hours in Japan. Awareness of the anatomical variations and pregnancy-related constraints is crucial. Diagnosis-specific protocols for CT based on pain location can optimize clinical management and resource utilization.</p>","PeriodicalId":23819,"journal":{"name":"World journal of radiology","volume":"17 6","pages":"105632"},"PeriodicalIF":1.4,"publicationDate":"2025-06-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12210207/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144555104","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}