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World Journal of Radiology

David Campos-Correia, João Cruz, António P Matos, Filipa Figueiredo, Miguel Ramalho
Hepatocellular carcinoma (HCC) usually develops in the setting of chronic liver disease. In the adequate clinical context, both multiphasic contrast-enhanced CT and magnetic resonance imaging are non-invasive modalities that allow accurate diagnosis and staging of HCC, although the latter demonstrates greater sensitivity and specificity. Imaging criteria for HCC diagnosis rely on hemodynamic features such as hyperenhancement in the arterial phase and washout in the portal or equilibrium phase. However, imaging performance drops considerably for small (< 20 mm) nodules because their tendency to exhibit atypical enhancement patterns...
February 28, 2018: World Journal of Radiology
Ulf Jensen-Kondering, Ruwen Böhm
[This corrects the article on p. 4 in vol. 5, PMID: 23671751.].
January 28, 2018: World Journal of Radiology
Tarik Delko, Diana Mattiello, Thomas Koestler, Urs Zingg, Silke Potthast
AIM: To evaluate upper abdominal computed tomography (CT) scan as primary follow-up after laparoscopic Roux-en-Y gastric bypass (LRYGB). METHODS: This prospective study was approved by the Ethical Committee of the State of Zurich, and informed consent was obtained from all patients. Sixty-one patients who underwent LRYGB received upper abdominal CT on postoperative day 1, with the following scan parameters: 0.6 mm collimation, 1.2 mm pitch, CareKV with reference 120 mAs and 120 kV, and 0...
January 28, 2018: World Journal of Radiology
Abhishek Mahajan, G V Santhoshkumar, Ameya Shirish Kawthalkar, Richa Vaish, Nilesh Sable, Supreeta Arya, Subhash Desai
We present a case of tubercular arthritis who underwent numerous unnecessary investigations what is known as "victims of modern imaging technology" or VOMIT. Today there is an exponential rise in the volume of the medical imaging, part of which is contributed by unnecessary and unjustified indications. We discuss about the untoward effects of the uninhibited and careless use of modern imaging modalities and possible ways to avoid. Skeletal manifestation of the tuberculosis is still common in the endemic countries like India...
December 28, 2017: World Journal of Radiology
Jose Gavito-Higuera, Rakesh Khatri, Ihtesham A Qureshi, Alberto Maud, Gustavo J Rodriguez
Hypoperfusion injury related to blood pressure decrease in acute hypertensive intracerebral hemorrhage continues to be a controversial topic. Aggressive treatment is provided with the intent to stop the ongoing bleeding. However, there may be additional factors, including autoregulation and increased intracranial pressure, that may limit this approach. We present here a case of acute hypertensive intracerebral hemorrhage, in which aggressive blood pressure management to levels within the normal range led to global cerebral ischemia within multiple border zones...
December 28, 2017: World Journal of Radiology
Elisa Chia, Simeon Niyi Babawale
Lung transplantation has been a method for treating end stage lung disease for decades. Despite improvements in the preoperative assessment of recipients and donors as well as improved surgical techniques, lung transplant recipients are still at a high risk of developing post-operative complications which tend to impact negatively the patients' outcome if not recognised early. The recognised complications post lung transplantation can be broadly categorised into acute and chronic complications. Recognising the radiological features of these complications has a significant positive impact on patients' survival post transplantation...
December 28, 2017: World Journal of Radiology
John L Nosher, Arjun Patel, Sugeet Jagpal, Christopher Gribbin, Vyacheslav Gendel
Acute pulmonary embolism (PE) is the third most common cause of death in hospitalized patients. The development of sophisticated diagnostic and therapeutic modalities for PE, including endovascular therapy, affords a certain level of complexity to the treatment of patients with this important clinical entity. Furthermore, the lack of level I evidence for the safety and effectiveness of catheter directed therapy brings controversy to a promising treatment approach. In this review paper, we discuss the pathophysiology and clinical presentation of PE, review the medical and surgical treatment of the condition, and describe in detail the tools that are available for the endovascular therapy of PE, including mechanical thrombectomy, suction thrombectomy, and fibrinolytic therapy...
December 28, 2017: World Journal of Radiology
Yousef Mazaheri, Oguz Akin, Hedvig Hricak
In many areas of oncology, dynamic contrast-enhanced magnetic resonance imaging (DCE-MRI) has proven to be a clinically useful, non-invasive functional imaging technique to quantify tumor vasculature and tumor perfusion characteristics. Tumor angiogenesis is an essential process for tumor growth, proliferation, and metastasis. Malignant lesions demonstrate rapid extravasation of contrast from the intravascular space to the capillary bed due to leaky capillaries associated with tumor neovascularity. DCE-MRI has the potential to provide information regarding blood flow, areas of hypoperfusion, and variations in endothelial permeability and microvessel density to aid treatment selection, enable frequent monitoring during treatment and assess response to targeted therapy following treatment...
December 28, 2017: World Journal of Radiology
Naomi Riddel, Mo Hameed Thoufeeq
A survey was performed to identify the practice associated with endoscopic placement of naso-jejunal (NJ) tubes. We had a total of 236 responses, of which 228 responded to the frequency of requesting X-ray after placing NJ tubes. The responses suggested that there was a strong variation in the practice. The practice was independent on clinicians' area of interest, hospital setting or experience in endoscopy. Currently there are no accepted guidelines on this. Hence, we advise hospitals to have robust local guidelines until there is internationally agreed consensus...
November 28, 2017: World Journal of Radiology
Hilal Gülsüm Turan, Mustafa Özdemir, Ruşen Acu, Fahrettin Küçükay, Fatma Ayça Edis Özdemir, Baki Hekimoğlu, Utku Mahir Yıldırım
AIM: To comparatively evaluate Seldinger and Trocar techniques in the percutaneous treatment of hydatid disease. METHODS: Trocar and Seldinger techniques were used for 49 and 56 cysts, respectively, among 106 hydatid cysts in 88 patients. The number of males and females were 22 and 66, respectively with a mean age of 44.9 years (range, 15-87). Follow-up studies included cyst diameter, cyst contents, and morphological changes in the cyst wall, local recurrence, and secondary invasion, using ultrasound, computerized tomography and chest X-rays...
November 28, 2017: World Journal of Radiology
Ankita Aggarwal, Manisha Jana, Vijay Kumar, Deep Narayan Srivastava, Kanwaljeet Garg
Intraosseous entrapment of the median nerve is an uncommon complication of elbow dislocation and fractures. The condition is seen to occur in adolescent age group with a remote history of trauma. We report two rare cases of type 2 intraosseous median nerve entrapment. Though the diagnosis of median neuropathy is made with clinical tests and neurophysiological studies, however exact site of entrapment and presurgical mapping of nerve is done accurately with MR neurography. Imaging thus plays a pivotal role in management of this condition...
October 28, 2017: World Journal of Radiology
Jessica G Zarzour, Sam Galgano, Jonathan McConathy, John V Thomas, Soroush Rais-Bahrami
Accurate nodal staging at the time of diagnosis of prostate cancer is crucial in determining a treatment plan for the patient. Pelvic lymph node dissection is the most reliable method, but is less than perfect and has increased morbidity. Cross sectional imaging with computed tomography (CT) and magnetic resonance imaging (MRI) are non-invasive tools that rely on morphologic characteristics such as shape and size of the lymph nodes. However, lymph nodes harboring metastatic disease may be normal sized and non-metastatic lymph nodes may be enlarged due to reactive hyperplasia...
October 28, 2017: World Journal of Radiology
Enricomaria Mormina, Maria Petracca, Giulia Bommarito, Niccolò Piaggio, Sirio Cocozza, Matilde Inglese
The cerebellum plays a key role in movement control and in cognition and cerebellar involvement is described in several neurodegenerative diseases. While conventional magnetic resonance imaging (MRI) is widely used for brain and cerebellar morphologic evaluation, advanced MRI techniques allow the investigation of cerebellar microstructural and functional characteristics. Volumetry, voxel-based morphometry, diffusion MRI based fiber tractography, resting state and task related functional MRI, perfusion, and proton MR spectroscopy are among the most common techniques applied to the study of cerebellum...
October 28, 2017: World Journal of Radiology
Gulgun Engin, Serpil Eraslan, Hülya Kayserili, Yersu Kapran, Haluk Akman, Ali Akyuz, Nuri Faruk Aykan
Familial gastrointestinal stromal tumor (GIST) is a rare autosomal dominant disorder associated with mutations in the KIT gene in the majority of cases. Although, exon 11 appears to be the hot spot region for approximately 95% of germline mutations, pathogenic variations have also been identified in exon 8, 13 and 17. Exon 13 germline mutations are extremely rare amongst familial GISTs and seven families with a germline mutation have been reported to date. Moreover, the role of imatinib mesylate in this rare familiar settings is not completely known so far...
September 28, 2017: World Journal of Radiology
Julia Loesaus, Isabel Wobbe, Erik Stahlberg, Joerg Barkhausen, Jan Peter Goltz
AIM: To evaluate the reliability of pronator quadratus fat pad sign to detect distal radius fracture and to predict its severity. METHODS: Retrospectively we identified 89 consecutive patients (41 female, mean age 49 ± 18 years) who had X-ray (CR) and computed tomography (CT) within 24 h following distal forearm trauma. Thickness of pronator quadratus fat pad complex (PQC) was measured using lateral views (CR) and sagittal reconstructions (CT). Pearson's test was used to determine the correlation of the PQC thickness in CR and CT...
September 28, 2017: World Journal of Radiology
Madhurima R Chetan, Tristan Barrett, Ferdia A Gallagher
AIM: To determine the significance and need for investigation of incidental prostatic uptake in men undergoing 18 F-labelled fluorodeoxyglucose ( 18 F-FDG) positron emission tomography/computed tomography (PET/CT) for other indications. METHODS: Hospital databases were searched over a 5-year period for patients undergoing both PET/CT and prostate magnetic resonance imaging (MRI). For the initial analysis, the prostate was divided into six sectors and suspicious or malignant sectors were identified using MRI and histopathology reports respectively...
September 28, 2017: World Journal of Radiology
Mohamed R Nouh, Mohamed A El-Shazly
With extended and continued expansion of medical imaging utilization in modern medical practice over last decade, radiologists as well as other faculty staff dealing with radiographic and magnetic resonances contrast media (CM) have to be well oriented with their potential hypersensitivity reactions and recognize high-risk groups liable to develop it and enable early recognition. Radiologists and other medical staff involved in administration and dealing with CM have to be ready to implement prompt, practical and effective management plan to deal with these scenarios should they emerge...
September 28, 2017: World Journal of Radiology
Abhishek Mahajan, Vedula Rajni Kanth Rao, Gudipati Anantaram, Ashwin M Polnaya, Sandeep Desai, Paresh Desai, Rammohan Vadapalli, Manas Panigrahi
AIM: To elucidate the clinical, magnetic resonance imaging (MRI), pathological features of these lesions and asses the incremental value of diffusion-weighted imaging (DWI) in diagnosing them. METHODS: Fifteen consecutive patients (11 females and 4 males; mean age 40.93 years; age range 13-63 years) with cavernous sinus hemangiomas (CSH) who underwent examination between November 2008 and May 2016 were included for the analysis. MRI, clinical and surgical findings of each patient was retrospectively reviewed...
August 28, 2017: World Journal of Radiology
Subhash K Ramani, Ashita Rastogi, Abhishek Mahajan, Nita Nair, Tanuja Shet, Meenakshi H Thakur
Mammographic appearance of the normal breast is altered in the post-operative setting. It is essential to be aware of the normal findings as well as to identify features of recurrent disease with particular emphasis on radiological-pathological concordance. Digital breast tomosynthesis and volumetric breast density add incremental value in this clinical setting. We present a pictorial review of various cases to illustrate normal post-operative findings as well as mammographic features suspicious for recurrent disease...
August 28, 2017: World Journal of Radiology
Vincent Vinh-Hung, Hendrik Everaert, Karim Farid, Navid Djassemi, Jacqueline Baudin-Veronique, Stefanos Bougas, Yuriy Michailovich, Clarisse Joachim-Contaret, Elsa Cécilia-Joseph, Claire Verschraegen, Nam P Nguyen
AIM: To investigate rates of distant metastases (DM) detected with [18]fluorodeoxyglucose-positron emission tomography/computed tomography ((18)FDG-PET/CT) in early stage invasive breast cancer. METHODS: We searched the English language literature databases of PubMed, EMBASE, ISI Web of Knowledge, Web of Science and Google Scholar, for publications on DM detected in patients who had (18)FDG-PET/CT scans as part of the staging for early stages of breast cancer (stage I and II), prior to or immediately following surgery...
July 28, 2017: World Journal of Radiology
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