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Sun, 23 Nov 2014
The emergency room diagnosis of gastrointestinal tract perforation: the role of CT

Abstract Computed tomography (CT) plays an important role in the evaluation of patients presenting to the emergency department with a suspected spontaneous gastrointestinal tract (GIT) perforation. Prospective identification of the site of perforation helps the emergency department physician plan the appropriate treatment in a potentially unstable patient. The purpose of this pictorial essay is to review the CT approach a radiologist should take when evaluating the patient with suspected perforation in the emergent setting. A series of patients presenting to the emergency department with surgically proven GIT perforations were retrospectively reviewed, and key images were obtained. For the purposes of this review, the anatomy of the abdominal cavity in relation to sites of GIT per...

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Sun, 23 Nov 2014
Non-invasive diagnosis of intracranial aneurysms

Publication date: Available online 22 November 2014 Source:Diagnostic and Interventional Imaging Author(s): C. Rodriguez-Régent , M. Edjlali-Goujon , D. Trystram , G. Boulouis , W. Ben Hassen , S. Godon-Hardy , F. Nataf , A. Machet , L. Legrand , A. Ladoux , C. Mellerio , R. Souillard-Scemama , C. Oppenheim , J.-F. Meder , O. Naggara Patients need to be examined for intracranial aneurysms if they have had a subarachnoid hemorrhage. The preferred technique in this situation is CT angiography. Screening can be done for familial forms or for elastic tissue disorders, for which the first line investigation is magnetic resonance angiography. These non-invasive methods have now taken over from conventional angiography that was reserved for the pretreatment phase. A good technical knowledge of...

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Sun, 23 Nov 2014
Diagnostic accuracy of contrast enhancement MRI versus CTA in diagnosis of intracranial aneurysm in patients with non-traumatic subarachnoid hemorrhage

Conclusion The diagnostic performance of CEMRA does not significantly differ from that of CTA in patients presenting with SAH. (Source: The Egyptian Journal of Radiology and Nuclear Medicine)

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Sun, 23 Nov 2014
The value of diffusion weighted MR imaging in T staging and correlation with histologic grading in urinary bladder cancer

Conclusion Accurate predictions for T staging of urinary bladder carcinoma can be made by means of DWI and ADC quantification. ADC value is a beneficial method for providing information about grade of bladder carcinomas. (Source: The Egyptian Journal of Radiology and Nuclear Medicine)

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Sun, 23 Nov 2014
Multiple bilateral huge synchronous ovarian mature cystic teratomas: A rarely encountered condition in practice

Publication date: Available online 21 November 2014 Source:The Egyptian Journal of Radiology and Nuclear Medicine Author(s): Ahmed Samy El-agwany , Ayat Samir Abel Moneim Teratomas account for 15% of all ovarian tumors, and 95% are dermoids. In the reproductive period, they constitute 43–70% of all benign ovarian neoplasms, with their highest frequency in adolescents. They are bilateral in up to 15% of cases. A 35year old multiparous female with three living children and history of previous III cesarean sections, presented with lower abdominal pain. Ultrasound revealed bilateral ovarian dermoid cysts. After laparotomy, we found two dermoid cysts on the left side and two dermoid cysts on the right side of variable sizes, which is a rare condition. All the dermoid cysts were enucleated w...

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Sat, 22 Nov 2014
Literature Reviews

No abstract available (Source: Ultrasound Quarterly)

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Sat, 22 Nov 2014
Not All Radiopaque Foreign Bodies Shadow on Ultrasound: Unexpected Sonographic Appearance of a Radiopaque Magnet

This report discusses the underlying factors for the different sonographic appearances and associated ultrasound artifacts of foreign bodies. This knowledge is important when performing sonography as adjunct modality for identification of foreign bodies in the gastrointestinal tract. (Source: Ultrasound Quarterly)

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Sat, 22 Nov 2014
Ultrasound-Guided Lung Recruitment in a 3-Month-Old Infant With Acute Respiratory Distress Syndrome

We report a case of US-guided lung recruitment procedure applied in an infant with severe acute respiratory distress syndrome and advocate that the lung US-guided RM in infants is a feasible and safe procedure. (Source: Ultrasound Quarterly)

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Sat, 22 Nov 2014
Ultrasonography-Guided Radiofrequency Ablation of Malignant Musculoskeletal Soft-Tissue Tumors Using the “Moving-Shot” Technique at a Single-Institution Experience

Abstract: The present study describes the use of the “moving-shot” technique for successful radiofrequency ablation (RFA) of malignant musculoskeletal soft-tissue tumors. Ultrasonography-guided RFA was performed in 6 malignant soft-tissue tumors in 5 patients. Short-term follow-up after RFA (8–27 weeks) showed that complete necrosis was achieved in all lesions, and 5 lesions (83%) decreased in size. Discomfort caused by the tumors decreased subjectively in all patients after ablation. Our results indicate that ultrasonography-guided RFA using the moving-shot technique can be an effective treatment option for locoregional control of malignant soft-tissue tumors. Long-term follow-up studies with a larger number of patients are necessary. (Source: Ultrasound Quarterly)

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Sat, 22 Nov 2014
Hyperechoic and Hypoechoic Hepatic Hemangiomas Smaller Than 3 cm Seldom Coexist

Conclusions: Hyperechoic and hypoechoic hemangiomas rarely coexist in the liver. In the event that hypoechoic and hyperechoic lesions are simultaneously found in the liver, CT, MRI, or contrast-enhanced US should be performed for a definitive diagnosis. (Source: Ultrasound Quarterly)

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Sat, 22 Nov 2014
Fibrolipomatous Hamartoma and Its Ultrasound Diagnosis: Case Series and Review of the Literature

We present 3 clinical cases of fibrolipomatous hamartoma consulting due to soft tissue mass, which were diagnosed by ultrasound. (Source: Ultrasound Quarterly)

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Sat, 22 Nov 2014
Serum Thyroglobulin Adds No Additional Value to Ultrasonographic Features in a Thyroid Malignancy

Abstract: We investigated the adjunctive role of preoperative serum thyroglobulin (Tg) in the diagnosis of thyroid nodules. A retrospective study was performed on 374 thyroid nodules (363 benign and 11 malignant) in 360 patients (296 women and 64 men; mean age, 50.1 years; range, 16-86 years) between December 2010 and July 2011. We evaluated clinicopathologic characteristics of patients and ultrasonographic (US) features of the lesions including presurgical Tg levels. Univariate and multivariate analysis were used to determine independent predictors of malignancy. Serum Tg was positively correlated with nodule size and thyroid volume (P < 0.001). There was no difference in serum Tg levels between malignant and benign nodules. Suspicious US features of thyroid nodules were the only independ...

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Sat, 22 Nov 2014
Characteristics Suggestive of Focal Fatty Sparing From Liver Malignancy on Ultrasound in Liver Screening

Conclusions: Combination of hyperechogenicity, isoechogenicity, heterogeneous echotexture, posterior acoustic shadowing, posterior acoustic enhancement, halo appearance, and hypervascularity with high-speed artery has high sensitivity, specificity, and positive and negative predictive values for distinguishing liver malignancy and FFS. (Source: Ultrasound Quarterly)

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Sat, 22 Nov 2014
Acute Pancreatitis: ACR Appropriateness Criteria Commentary

No abstract available (Source: Ultrasound Quarterly)

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Sat, 22 Nov 2014
ACR Appropriateness Criteria® Acute Pancreatitis

Abstract: The American College of Radiology Appropriateness Criteria® are evidence-based guidelines for specific clinical conditions that are reviewed every two years by a multidisciplinary expert panel. The guideline development and review include an extensive analysis of current medical literature from peer reviewed journals and the application of a well-established consensus methodology (modified Delphi) to rate the appropriateness of imaging and treatment procedures by the panel. In those instances where evidence is lacking or not definitive, expert opinion may be used to recommend imaging or treatment. The Atlanta Classification by the Acute Pancreatitis Classification Working Group recently modified the terminology for the clinical course and the morphologic changes identified on im...

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Sat, 22 Nov 2014
The Radiology Workforce in Relation to Ultrasound

No abstract available (Source: Ultrasound Quarterly)

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Sat, 22 Nov 2014
Screening Obstetric Ultrasound Training for a 5-Country Cluster Randomized Controlled Trial

Abstract: With decreased equipment cost, provision of ultrasound is now feasible in some low resource settings. Screening obstetric ultrasound may identify potential pregnancy complications and, with this knowledge, allow women to plan to deliver at the appropriate level of care. In this article, we describe a 10-day course with quality assurance activities to train ultrasound-naïve, nonphysician healthcare professionals at midlevel health facilities to perform screening obstetric ultrasound. Those trained will participate in a cluster randomized controlled trial to assess the impact of screening obstetric ultrasound on maternal and newborn outcomes. (Source: Ultrasound Quarterly)

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Sat, 22 Nov 2014
Editor Introduction

No abstract available (Source: Ultrasound Quarterly)

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Sat, 22 Nov 2014
Spondylolytic spondylolisthesis: various imaging features and natural courses

Abstract The purpose of this paper is to review typical and atypical imaging features of spondylolytic spondyolisthesis and natural courses. Imaging features of the typical pars defect in early phase include bone marrow edema of the isthmus on MR imaging with progression of bone defect on plain radiography or CT. There are various defect types (pedicular cleft, retroisthmic cleft) and locations (upper lumbar spine and unilateral lesions). Natural courses also vary, with different patterns of progression and stabilization. Clinical correlation of the imaging and clinical features is often difficult. (Source: Japanese Journal of Radiology)

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Sat, 22 Nov 2014
Metal-induced artifacts in computed tomography and magnetic resonance imaging: comparison of a biodegradable magnesium alloy versus titanium and stainless steel controls

Conclusion Biodegradable magnesium alloys induce substantially fewer artifacts in CT compared to standard titanium and stainless steel, and fewer artifacts in MRI for the comparison with stainless steel. (Source: Skeletal Radiology)

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Sat, 22 Nov 2014
[This Week in Medicine] November 22–28, 2014

A survey by the Royal College of Radiologists (RCR) has revealed that more than 300 000 patients in England wait longer than a month for radiograph results or scan interpretations. This long wait could delay diagnosis and cause patient distress. The RCR calls for a revision of radiology services and commitment to train more radiologists in the UK. (Source: LANCET)

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Sat, 22 Nov 2014
Erratum to: JSUM ultrasound elastography practice guidelines: pancreas

(Source: Journal of Medical Ultrasonics)

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Sat, 22 Nov 2014
Endoscopic ultrasonography of duodenal aberrant pancreas: comparison with histology after endoscopic resection

We present the case of a 45-year-old man with an aberrant pancreas in the duodenum. He was referred to our hospital for gastric cancer screening. On upper gastrointestinal endoscopy, a submucosal tumor was noted in the second portion of the duodenum; it was 10 mm in diameter, with a smooth surface and bridging fold. Endoscopic ultrasonography (EUS) showed a hypoechoic lesion with small anechoic areas located in the third sonographic layer of the duodenum wall. To confirm the exact diagnosis, endoscopic resection was performed. The histological diagnosis was aberrant pancreas, Heinrich type II. The hypoechoic lesion and anechoic areas on EUS findings clearly corresponded with pancreatic acinus cells and duct dilation on histological findings, respectively. EUS findings are useful to diagno...

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Sat, 22 Nov 2014
Measurement of inter- and intra-observer variability in the routine clinical interpretation of brain 18-FDG PET-CT

Conclusion Despite a strong agreement in final diagnosis, this study demonstrates a moderate inter- and substantial intra-observer reproducibility in reporting brain 18-FDG PET-CT. Such results suggest that the visual analysis approach is different between nuclear physicians but leads to the same final diagnosis. (Source: Annals of Nuclear Medicine)

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Sat, 22 Nov 2014
Current and Future Status of PET Myocardial Perfusion Tracers

This article aims to review the currently available PET myocardial perfusion tracers as well as the question if those tracers that are being developed and about to be translated into clinics have the potential to overcome this issue. (Source: Current Cardiovascular Imaging Reports)

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