SA Journal of Radiology最新文献_第6页

Utility of diffusion-weighted imaging in differentiating benign and malignant breast lesions. 弥散加权成像在区分乳腺良性和恶性病变方面的实用性。

IF 0.7

SA Journal of Radiology Pub Date : 2024-10-09 eCollection Date: 2024-01-01 DOI: 10.4102/sajr.v28i1.2952

Allen Johnson, Radha Sarawagi, Rajesh Malik, Jitendra Sharma, Abhinav Bhagat

{"title":"Utility of diffusion-weighted imaging in differentiating benign and malignant breast lesions.","authors":"Allen Johnson, Radha Sarawagi, Rajesh Malik, Jitendra Sharma, Abhinav Bhagat","doi":"10.4102/sajr.v28i1.2952","DOIUrl":"10.4102/sajr.v28i1.2952","url":null,"abstract":"Background: Breast cancer presents a significant global health burden. An accurate differentiation between benign and malignant lesions is imperative for timely intervention. While dynamic contrast enhanced MRI (DCE-MRI) is highly sensitive, its specificity is limited. This has led to the exploration of diffusion-weighted imaging (DWI) in distinguishing between benign and malignant breast lesions.Objectives: The study aimed to explore the diagnostic utility of DWI in distinguishing between benign and malignant breast lesions.Method: Assessment of 38 breast lesions using DWI with a b value of 800 s/mm2, performed with 3 Tesla MRI. The diagnostic performance of two different region of Interest (ROI) placement approaches was compared to obtain a feasible cut-off value of apparent diffusion coefficient (ADC) to differentiate between malignant and benign lesions. The histopathological reports were used as the gold standard.Results: ADC values of malignant lesions were significantly lower than those of benign lesions (0.84 × 10-3 mm2/s vs. 1.54 × 10-3 mm2/s). The average ADC measured using a small-sized 2D ROI including the darkest part in the ADC map, performed better than the large 2D ROI covering the entire lesion.Conclusion: Using a cut-off value of 0.98 × 10-3 mm2/s, ADC obtained high sensitivity (90%) and specificity (88.9%) in distinguishing between benign and malignant breast lesions.Contribution: Utilising quantitative analysis of DWI with ADC value measurement, reliably distinguished between benign and malignant breast lesions in this cohort, especially when employing a higher b value of 800 s/mm2.","PeriodicalId":43442,"journal":{"name":"SA Journal of Radiology","volume":"28 1","pages":"2952"},"PeriodicalIF":0.7,"publicationDate":"2024-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11538155/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142591783","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}

引用次数: 0

Retrospective study of detecting oesophageal injuries post neck trauma: CTA versus fluoroscopy. 颈部创伤后食道损伤检测的回顾性研究：CTA与透视

IF 0.7

SA Journal of Radiology Pub Date : 2024-09-09 eCollection Date: 2024-01-01 DOI: 10.4102/sajr.v28i1.2930

Audrey R Rumhumha, Nicholas Christofides, Pravani Moodley

{"title":"Retrospective study of detecting oesophageal injuries post neck trauma: CTA versus fluoroscopy.","authors":"Audrey R Rumhumha, Nicholas Christofides, Pravani Moodley","doi":"10.4102/sajr.v28i1.2930","DOIUrl":"10.4102/sajr.v28i1.2930","url":null,"abstract":"Background: Timely detection of oesophageal injuries post-penetrating neck trauma is imperative because of the associated high morbidity and mortality. Patients commonly undergo both CT angiography (CTA) and contrast swallow studies (fluoroscopic oesophagography) when oesophageal injury is suspected.Objectives: To determine the radiological findings of oesophageal injury after penetrating neck trauma comparing CTA and fluoroscopic oesophagography at a single tertiary centre.Method: The study retrospectively reviewed the data from CTA and fluoroscopic oesophagography reports of patients suspected of oesophageal injuries secondary to penetrating neck trauma at a tertiary hospital in South Africa from January 2018 to December 2022.Results: A total of 76 records were reviewed. The mean age for the participants was 31.5 years, ranging from 0.75-66 years. In this study 6/76 (8%) patients had confirmed oesophageal injury on fluoroscopy, which is considered the gold standard. The majority of penetrating neck injuries were in the 20-29 year age group, with 33/76 (43%) injuries. Stab wounds as the mechanism of injury accounted for 57/76 (75%). Dysphagia was experienced by 10/76 (13%) of those who had injuries. Zone I injuries accounted for 33/76 (43%) of the injuries.Conclusion: The incidence of oesophageal injuries secondary to penetrating neck injuries is comparable to previous studies. This study determined that CTA has a high sensitivity but low specificity.Contribution: Fluoroscopic oesophagography should, therefore, be performed in patients who have an abnormal CTA coupled with clinical signs and symptoms of oesophageal injury.","PeriodicalId":43442,"journal":{"name":"SA Journal of Radiology","volume":"28 1","pages":"2930"},"PeriodicalIF":0.7,"publicationDate":"2024-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11447603/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142373157","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}

引用次数: 0

Correlation between CT volumetry and actual graft weight in living donor liver transplants in South Africa. 南非活体肝移植中 CT 容量测量与实际移植物重量之间的相关性。

IF 0.7

SA Journal of Radiology Pub Date : 2024-09-05 eCollection Date: 2024-01-01 DOI: 10.4102/sajr.v28i1.2917

Katherine D Calver, Owen Terreblanche, Ilonka Warnich, Francisca van der Schyff

{"title":"Correlation between CT volumetry and actual graft weight in living donor liver transplants in South Africa.","authors":"Katherine D Calver, Owen Terreblanche, Ilonka Warnich, Francisca van der Schyff","doi":"10.4102/sajr.v28i1.2917","DOIUrl":"10.4102/sajr.v28i1.2917","url":null,"abstract":"Background: Liver transplantation is the definitive management for patients with end-stage liver disease. Preoperative computed tomography (CT) is used in living donor liver transplant (LDLT) for donor and graft selection as well as predicting graft weight.Objectives: The aim of this study is to establish the relationship between estimated graft volume (EGV) and actual graft weight (AGW) and ascertain a correlation coefficient that will improve the accuracy of EGV in a South African population.Method: The study included 117 LDLT between March 2013 and August 2022. Of these, 86 were left lateral (LL), 15 right lobe (R), 10 left lobe with caudate (LC), five left lobe (L) and one segment two (monosegment) grafts. Estimated graft volume and actual graft weight were compared using the Pearson coefficient and the relationship was illustrated with scatter plots.Results: Estimated graft volume and AGW had a strong positive correlation with a Pearson correlation (R) of 0.95 (p < 0.001). The relationship was significantly linear with a correlation coefficient of 0.71. The mean EGV was significantly higher than that of AGW (388 mL ± 249 mL vs. 353 g ± 184 g) with overestimation in 61% of cases. Left lateral and R grafts were the most prevalent LDLT graft type, both having a strong linear correlation between EGV and AGW.Conclusion: Applying a correlation coefficient of 0.71 will improve the accuracy of CT volumetry graft weight predictions.Contribution: A unique correlation coefficient will improve EGV accuracy, aiding in preoperative planning and mitigating post-operative complications in both donors and recipients.","PeriodicalId":43442,"journal":{"name":"SA Journal of Radiology","volume":"28 1","pages":"2917"},"PeriodicalIF":0.7,"publicationDate":"2024-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11447610/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142373156","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}

引用次数: 0

Malrotation with mid-gut volvulus and partial small bowel peritoneal membrane encapsulation. 肠旋转不良，中肠翻卷，部分小肠腹膜包裹。

IF 0.7

SA Journal of Radiology Pub Date : 2024-08-28 eCollection Date: 2024-01-01 DOI: 10.4102/sajr.v28i1.2936

Ryan Frerichs, Tanusha Sewchuran

引用次数: 0

Description of a concurrent thyroid haemangioma and a follicular adenoma. 甲状腺血管瘤和滤泡腺瘤并发症的描述

IF 0.7

SA Journal of Radiology Pub Date : 2024-07-31 eCollection Date: 2024-01-01 DOI: 10.4102/sajr.v28i1.2863

Liezel Coetzee, Wilhelmina Conradie, Razaan Davis, Rubina Razack

引用次数: 0

Multiple myeloma in a young female presenting as an aggressive skull-base tumour. 一名年轻女性的多发性骨髓瘤，表现为侵袭性颅底肿瘤。

IF 0.7

SA Journal of Radiology Pub Date : 2024-07-31 eCollection Date: 2024-01-01 DOI: 10.4102/sajr.v28i1.2883

Ursula Lesar, Leon Janse van Rensburg, Siobhan Oelofsen, Kevin McCree, Christelle Ackerman, Razaan Davis

引用次数: 0

Case report and presentation of a new classification system for hip acetabular and periacetabular ossifications and calcifications. 病例报告和髋臼及髋臼周围骨化和钙化的新分类系统介绍。

IF 0.9

SA Journal of Radiology Pub Date : 2024-05-31 eCollection Date: 2024-01-01 DOI: 10.4102/sajr.v28i1.2874

Luis Perez-Carro, Oscar Perez-Fernandez, Alvaro Cerezal Canga, T Jegathesan, Luis Antonio Ruiz-Villanueva, Luis Cerezal-Pesquera

引用次数: 0

Heterotaxy syndrome - An unusual cause for bowel obstruction in an adult. 异位综合征 - 导致成人肠梗阻的不常见原因。

IF 0.9

SA Journal of Radiology Pub Date : 2024-05-30 eCollection Date: 2024-01-01 DOI: 10.4102/sajr.v28i1.2831

Radhiya Minty, Tanaka Gomba, Rabia Abid

引用次数: 0

Suprasellar pilocytic astrocytoma with leptomeningeal dissemination. 小脑上皮细胞性星形细胞瘤伴有脑膜播散。

IF 0.9

SA Journal of Radiology Pub Date : 2024-05-27 eCollection Date: 2024-01-01 DOI: 10.4102/sajr.v28i1.2876

Siti S Mohamad Zaini, Hilwati Hashim, Emy S Rosani, Nor S Bakar, Suryati Mohd Yusoff

引用次数: 0

Chemical abscess post vein of Galen aneurysmal malformation embolisation with ethylene vinyl alcohol copolymer. 用乙烯-乙烯醇共聚物栓塞盖伦静脉动脉瘤畸形后的化学脓肿。

IF 0.9

SA Journal of Radiology Pub Date : 2024-04-30 eCollection Date: 2024-01-01 DOI: 10.4102/sajr.v28i1.2841

Uday Bhanu Kovilapu, Rahul Dudhal, Saurabh Maheshwari, Peeyush Dhagat, Umesh K Mishra

引用次数: 0