Acta Radiologica Short Reports最新文献

{"title":"Imaging pitfalls, normal anatomy, and anatomical variants that can simulate disease on cardiac imaging as demonstrated on multidetector computed tomography.","authors":"Silanath Terpenning,&nbsp;Charles S White","doi":"10.1177/2047981614562443","DOIUrl":"https://doi.org/10.1177/2047981614562443","url":null,"abstract":"<p><p>Advances in computed tomography have led to continuous improvement in cardiac imaging. Dedicated postprocessing capabilities, faster scan times, and cardiac gating methods reveal details of normal cardiac anatomy and anatomic variants that can mimic pathologic conditions. This article will review normal cardiac anatomy and variants that can mimic disease. Radiologists should be familiar with normal cardiac anatomy and anatomic variants to avoid misinterpretation of normal findings for pathologic processes. </p>","PeriodicalId":30445,"journal":{"name":"Acta Radiologica Short Reports","volume":"4 1","pages":"2047981614562443"},"PeriodicalIF":0.0,"publicationDate":"2015-01-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1177/2047981614562443","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"32994718","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":"Multimodal MR imaging of acute and subacute experimental traumatic brain injury: Time course and correlation with cerebral energy metabolites.","authors":"Marc Maegele, Ewa K Stuermer, Alexander Hoeffgen, Ulla Uhlenkueken, Angelika Mautes, Nadine Schaefer, Marcela Lippert-Gruener, Ute Schaefer, Mathias Hoehn","doi":"10.1177/2047981614555142","DOIUrl":"10.1177/2047981614555142","url":null,"abstract":"<p><strong>Background: </strong>Traumatic brain injury (TBI) is one of the leading causes of death and permanent disability world-wide. The predominant cause of death after TBI is brain edema which can be quantified by non-invasive diffusion-weighted magnetic resonance imaging (DWI).</p><p><strong>Purpose: </strong>To provide a better understanding of the early onset, time course, spatial development, and type of brain edema after TBI and to correlate MRI data and the cerebral energy state reflected by the metabolite adenosine triphosphate (ATP).</p><p><strong>Material and methods: </strong>The spontaneous development of lateral fluid percussion-induced TBI was investigated in the acute (6 h), subacute (48 h), and chronic (7 days) phase in rats by MRI of quantitative T2 and apparent diffusion coefficient (ADC) mapping as well as perfusion was combined with ATP-specific bioluminescence imaging and histology.</p><p><strong>Results: </strong>An induced TBI led to moderate to mild brain damages, reflected by transient, pronounced development of vasogenic edema and perfusion reduction. Heterogeneous ADC patterns indicated a parallel, but mixed expression of vasogenic and cytotoxic edema. Cortical ATP levels were reduced in the acute and subacute phase by 13% and 27%, respectively, but were completely normalized at 7 days after injury.</p><p><strong>Conclusion: </strong>The partial ATP reduction was interpreted to be partially caused by a loss of neurons in parallel with transient dilution of the regional ATP concentration by pronounced vasogenic edema. The normalization of energy metabolism after 7 days was likely due to infiltrating glia and not to recovery. The MRI combined with metabolite measurement further improves the understanding and evaluation of brain damages after TBI.</p>","PeriodicalId":30445,"journal":{"name":"Acta Radiologica Short Reports","volume":"4 1","pages":"2047981614555142"},"PeriodicalIF":0.0,"publicationDate":"2015-01-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/61/d7/10.1177_2047981614555142.PMC4299368.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"32994716","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":"Emergency endovascular management of the common femoral artery rupture due to radiotherapy for scrotal carcinoma.","authors":"Umberto Marcello Bracale,&nbsp;Giovanni Merola,&nbsp;Luca Del Guercio,&nbsp;Maurizio Sodo,&nbsp;Anna Maria Giribono,&nbsp;Umberto Bracale","doi":"10.1177/2047981614545154","DOIUrl":"https://doi.org/10.1177/2047981614545154","url":null,"abstract":"<p><p>We describe the case of a 72-year-old man with massive hemorrhage and shock resulting from rupture of the left common femoral artery as a complication of radiotherapy in the groin for cancer of the scrotum. This complication is extremely rare, presents dramatically, and is usually fatal. The patient was successfully treated with a stent graft deployment in order to achieve immediate hemostasis maintaining blood flow to the leg. Open surgery is not ideal in those cases especially when there is extensive tumor involvement of the groin causing altered anatomy and increasing the risk of re-bleeding. </p>","PeriodicalId":30445,"journal":{"name":"Acta Radiologica Short Reports","volume":"4 1","pages":"2047981614545154"},"PeriodicalIF":0.0,"publicationDate":"2015-01-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1177/2047981614545154","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"32994714","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":"Herniation of uncus and parahippocampal gyrus: an accidental finding on magnetic resonance imaging of cerebrum.","authors":"Yousef Yavarian,&nbsp;Michael Bayat,&nbsp;Jens Brøndum Frøkjær","doi":"10.1177/2047981614560077","DOIUrl":"https://doi.org/10.1177/2047981614560077","url":null,"abstract":"<p><p>Idiopathic herniation of uncus and parahippocampal gyrus into the ambient cistern is a very rare entity, which could be mistaken for other pathology such as tumor. To the best of our knowledge, two prior cases of this kind of herniation have been described. One of these cases was with associated symptomatology and other abnormalities, and the other was characterized as idiopathic. In this case report, we report a case of accidental finding of a herniation of uncus and parahippocampal gyrus into the ambient cistern, without any other accompanying abnormalities, well depicted by magnetic resonance imaging without further necessity for surgical brain intervention. </p>","PeriodicalId":30445,"journal":{"name":"Acta Radiologica Short Reports","volume":"4 1","pages":"2047981614560077"},"PeriodicalIF":0.0,"publicationDate":"2015-01-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1177/2047981614560077","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"32994717","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 findings of Gorlin-Goltz syndrome.","authors":"Parisa Hajalioghli,&nbsp;Ali Ghadirpour,&nbsp;Reza Ataie-Oskuie,&nbsp;Marinos Kontzialis,&nbsp;Nariman Nezami","doi":"10.1177/2047981614552294","DOIUrl":"https://doi.org/10.1177/2047981614552294","url":null,"abstract":"<p><p>A 15-year-old girl was referred to a dentist complaining of parageusia, bad taste in the mouth, which started 9 months ago. Panoramic X-ray and non-enhanced computed tomography scan revealed multiple bilateral unilocular cysts in the mandible and maxilla, along with calcification of anterior part of the falx cerebri. She was eventually diagnosed with Gorlin-Goltz syndrome based on imaging and histopathologic finding of keratocystic odontogenic tumor. </p>","PeriodicalId":30445,"journal":{"name":"Acta Radiologica Short Reports","volume":"4 1","pages":"2047981614552294"},"PeriodicalIF":0.0,"publicationDate":"2015-01-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1177/2047981614552294","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"32994715","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":"Thanks.","authors":"","doi":"10.1177/2047981614563669","DOIUrl":"https://doi.org/10.1177/2047981614563669","url":null,"abstract":"","PeriodicalId":30445,"journal":{"name":"Acta Radiologica Short Reports","volume":"3 11","pages":"2047981614563669"},"PeriodicalIF":0.0,"publicationDate":"2014-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1177/2047981614563669","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"32929736","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":"Hepatic capsular retraction: spectrum of diagnosis at MRI.","authors":"David Da Ines,&nbsp;Antoine Mons,&nbsp;Chadi Braidy,&nbsp;Pierre François Montoriol,&nbsp;Jean-Marc Garcier,&nbsp;Valérie Vilgrain","doi":"10.1177/2047981614545667","DOIUrl":"https://doi.org/10.1177/2047981614545667","url":null,"abstract":"<p><p>Hepatic capsular retraction is an imaging feature that deserves the attention of the radiologist. Hepatic capsular retraction is associated with a number of hepatic lesions, benign or malignant, treated or untreated. The purpose of this pictorial review is to discuss the most common benign and malignant hepatic lesions associated with this feature with an emphasis on magnetic resonance imaging (MRI). </p>","PeriodicalId":30445,"journal":{"name":"Acta Radiologica Short Reports","volume":"3 11","pages":"2047981614545667"},"PeriodicalIF":0.0,"publicationDate":"2014-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1177/2047981614545667","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"32929732","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":"Whole-body MRI as an unconventional diagnostic tool in a pediatric patient with systemic infection.","authors":"Paolo Picco,&nbsp;Aldo Naselli,&nbsp;Giovanna Pala,&nbsp;Francesca Rizzo,&nbsp;Beatrice Damasio,&nbsp;Antonella Buoncompagni,&nbsp;Alberto Martini","doi":"10.1177/2047981614549571","DOIUrl":"https://doi.org/10.1177/2047981614549571","url":null,"abstract":"<p><p>Anaplasma phagocytophilum, an obligate intracellular bacterium, is the causative agent of human granulocytic anaplasmosis (HGA), a tickborne infection usually manifesting as fever, malaise, cytopenia, spleen enlargement, and hepatitis. Herein, we report a case of a 14-year-old girl with HGA whose whole-body magnetic resonance imaging (MRI) disclosed an unusual picture characterized by small, widespread punctuate millimetric nodules, hypointense on T1-weighted and hyperintense on STIR sequences. This firstly reported finding may represent an alternative tool for identifying atypical infectious diseases. </p>","PeriodicalId":30445,"journal":{"name":"Acta Radiologica Short Reports","volume":"3 11","pages":"2047981614549571"},"PeriodicalIF":0.0,"publicationDate":"2014-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1177/2047981614549571","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"32929733","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":"Severe complications with irreversible electroporation of the pancreas in the presence of a metallic stent: a warning of a procedure that never should be performed.","authors":"Christopher Månsson,&nbsp;Anders Nilsson,&nbsp;Britt-Marie Karlson","doi":"10.1177/2047981614556409","DOIUrl":"https://doi.org/10.1177/2047981614556409","url":null,"abstract":"<p><p>Irreversible electroporation (IRE) is an ablation technique that is being investigated as a potential treatment of pancreatic cancer. However, many of these patients have a metallic stent in the bile duct, which is recognized as a contraindication for IRE ablation. We report a case in which an IRE ablation in the region of the pancreatic head was performed on a patient with a metallic stent which led to severe complications. After the treatment, the patient suffered from several complications including perforation of the duodenum and transverse colon, and bleeding from a branch of the superior mesenteric artery which eventually lead to her death. Therefore, we believe it is important to be aware of this if an IRE ablation close to a metallic stent is considered. </p>","PeriodicalId":30445,"journal":{"name":"Acta Radiologica Short Reports","volume":"3 11","pages":"2047981614556409"},"PeriodicalIF":0.0,"publicationDate":"2014-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1177/2047981614556409","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"32929734","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":"When to do, and when (definitively) not to do an interventional procedure.","authors":"Arnulf Skjennald","doi":"10.1177/2047981614558197","DOIUrl":"https://doi.org/10.1177/2047981614558197","url":null,"abstract":"In this issue of Acta Radiologica Short Reports a case of irreversible electroporation (IRE) of a tumor in the pancreatic head is presented (1). This is a well-known technique that can be used in the treatment of, for example, inoperable pancreatic cancer. In this case, the patient had a metallic stent in the bile duct, which is strictly regarded as an absolute contraindication in doing such procedures. This procedure was, nevertheless, performed at a private institution, and when the complications became obvious, the patient was transferred to a university clinic and treated, unfortunately, with a fatal outcome. \u0000 \u0000As interventional radiologists, we all realize the importance of knowing when to do, or more importantly, when not to do/perform special procedures. It is (or should be) common knowledge to most of us that procedures as described in this manuscript should not be done due to the severe, and in this case fatal, outcome connected to the metallic stent implanted in the area of the tumor to be treated. Instead, this procedure was done, with the described fatal outcome as a result. \u0000 \u0000The radiological community has to take responsibility if someone is doing procedures that are regarded as contraindicated, in this case by both the producer of the equipment and by most colleagues performing such procedures. When some of our colleagues, regardless of warnings, decide to perform such a procedure, this should be focused upon in the scientific literature and make clear to all of us the responsibility of choosing appropriate treatment methods. This procedure was done in a private clinic and one can only speculate if the reason for doing this was based on economy or lack of knowledge. We all have a responsibility of securing a safe treatment to our patients as interventional radiology now has become a very important part of the broad specter of methods in treating patients. \u0000 \u0000Reporting treatment results are important; however, reports of treatment failures are equally important, and not at least to focus on indications, and not at least contraindications of interventional procedures. The present article is a good example of the importance of reporting treatment failure and most importantly when not to perform certain kinds of procedures. The focus should be kept on strict information of indications/contraindications and treatment successes/failures. It is the responsibility of the interventional radiologist to be updated on the results of every technique used in the diagnosis and treatment of our patients.","PeriodicalId":30445,"journal":{"name":"Acta Radiologica Short Reports","volume":"3 11","pages":"2047981614558197"},"PeriodicalIF":0.0,"publicationDate":"2014-12-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1177/2047981614558197","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"32929735","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}