Modern sonographic imaging of abdominal neuroendocrine tumors.

This report describes the sonomorphological behavior of ileal and pancreatic NET as well as hepatic metastases from NET. CLINICAL/METHODICAL ISSUE: Sonographic evaluation of NET of the small intestine, pancreas and neuroendocrine hepatic metastases. STANDARD RADIOLOGICAL METHODS: Contrast-enhanced computed tomography (CT) or magnetic resonance imaging (MRI), unenhanced ultrasonography. METHODICAL INNOVATIONS: Contrast-enhanced ultrasound (CEUS). PERFORMANCE: CEUS supports unenhanced ultrasound in the detection of NET and the differential diagnosis of unclear lesions, and is more sensitive for liver metastases (sensitivity according to the literature, 99% vs. 68%) PRACTICAL RECOMMENDATIONS: CEUS allows initial evaluation of NET and differentiation of benign vs. malignant lesions. Nevertheless, CEUS cannot replace more elaborate imaging modalities like CT or MRI for thorough staging examinations. PMID: 31440790 [PubMed - as supplied by publisher]
Source: Der Radiologe - Category: Radiology Authors: Tags: Radiologe Source Type: research

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CONCLUSION: The various evaluation methods for predicting a pCR after PCRT show a predictive sensitivity of 0.15-0.41 for primary tumors and 0.52-0.88 for lymph nodes. Endoscopy is a relatively superior modality for predicting the pCR of the primary tumor of LARC patients. PMID: 31726004 [PubMed]
Source: Annals of Coloproctology - Category: Gastroenterology Tags: Ann Coloproctol Source Type: research
If you want residents to moan, start out the conversation with “when I was a resident….” Well, when I was a resident, computed tomography (CT) scans had just been introduced into the hospital, ultrasound was a rarely used procedure, and magnetic resonance imaging and positron emission tomography were still in the future. We did tomograms, pyelograms, veno grams, and various scans of the spleen, liver, and brain. The imaging options available today are overwhelming. Three-dimensional reproductions of any part of the body; bedside ultrasounds of the brain, heart, abdomen, and pelvis; and scans that show fu...
Source: The Journal of Emergency Medicine - Category: Emergency Medicine Authors: Tags: Book and Other Media Reviews Source Type: research
ConclusionMesenteric cysts represent a rare cause of intra-abdominal mass. Owing to low prevalence, literature is limited as is guidance on management. Careful pre-operative planning is essential so as to avoid operative complications. Imaging such as USS is of great importance; however Computed Tomography (CT) and Magnetic Resonance Imaging (MRI) may be of more benefit, owing to the complex anatomical relations within which mesenteric cysts can present. Surgical excision is widely reported as the surgical treatment of choice for symptomatic cysts
Source: International Journal of Surgery Case Reports - Category: Surgery Source Type: research
Current clinical guidelines for surgical repair of abdominal aortic aneurysms (AAAs) are primarily based on maximum diameter assessment. From a biomechanical point of view, not only the diameter but also peak wall stresses will play an important role in rupture risk assessment. These methods require patient specific geometry which typically uses computed tomography (CT) or magnetic resonance imaging. Recently, wall stress analysis based on 3D ultrasound (US) has been proposed, and shows promising results.
Source: European Journal of Vascular and Endovascular Surgery - Category: Surgery Authors: Source Type: research
CONCLUSION: This study showed that large volume geometry assessment of AAAs using multiperspective 3D ultrasound, segmentation and fusion, and wall stress analysis is feasible in a robust and labour efficient manner. PMID: 31727437 [PubMed - as supplied by publisher]
Source: PubMed: Eur J Vasc Endovasc ... - Category: Surgery Authors: Tags: Eur J Vasc Endovasc Surg Source Type: research
Neither contrast-enhanced computed tomography nor magnetic resonance imaging can monitor changes in the pancreatic ductal adenocarcinoma microenvironment during therapy. We hypothesized that shear wave elastography could overcome this limitation. To test this hypothesis, we measured the shear modulus of two groups of murine pancreatic tumors (KCKO, n  = 30; PAN02, n = 30) treated with stereotactic body radiation therapy (SBRT). The mean shear modulus of KCKO tumors was 7.651 kPa higher than that of PAN02 tumors (p
Source: Ultrasound in Medicine and Biology - Category: Radiology Authors: Tags: Original Contribution Source Type: research
Lung cancer has been identified as the leading cause of cancer-related deaths worldwide and one of the most common malignancies in China [1]. More and more non-small cell lung cancer (NSCLC) patients have been observed in the screening projects for detection of early stage lung cancer with the use of low dose computed tomography (CT) [2]. Accurate imaging for evaluation of the Lymph Node Metastases (LNM) could affect the treatment of these patients [3]. Many imaging modalities such as CT, Magnetic Resonance Imaging (MRI), Positron Emission Tomography-CT (PET-CT), as well as other diagnostic techniques like ultrasound-guide...
Source: Lung Cancer - Category: Cancer & Oncology Authors: Source Type: research
AbstractExtension of tumor tissue within a vein is a recognized prognostic factor in abdominal malignancy because of its influence on tumor staging and selection of therapeutic management. With the advent of newer surgical techniques, and variable treatment strategies, imaging plays a crucial role in categorizing patients according to the tumor resectability and vascular reconstruction techniques during surgery. Understanding the clinical impact of tumor thrombus increases the awareness of the radiologist about the key findings in tumor staging and decision-making of surgical approach. Ultrasound (US), computed tomography ...
Source: Abdominal Imaging - Category: Radiology Source Type: research
Authors: Bakewell C, Aydin SZ, Ranganath VK, Eder L, Kaeley GS Abstract Psoriatic arthritis (PsA) affects up to 30% of patients with psoriasis and may include musculoskeletal manifestations such as enthesitis. Enthesitis is associated with joint damage, and early detection and treatment are essential to management of the disease. Traditionally assessed by clinical examination and conventional radiography, entheseal inflammation can now be more accurately assessed earlier in the disease using techniques such as ultrasound, magnetic resonance imaging, computed tomography, and molecular imaging. However, there is litt...
Source: Journal of Rheumatology - Category: Rheumatology Tags: J Rheumatol Source Type: research
Authors: Shidlovskyi VO, Shidlovskyi OV, Sheremet M, Zhulkevych IV, Andreychyn SM, Hanberher II, Smachylo II, Dobrorodny VB, Futuima YM Abstract The final stage of the diagnostic of primary hyperaldosteronism is to identify the causes of excessive secretion of aldosterone and determination of its variants. Based on the analysis of literature data, the diagnostic value, sensitivity and specificity of the methods of radiation diagnostics for primary hyperaldosteronism were assessed: ultrasound, computed tomography, magnetic resonance imaging, photon emission tomography, magnetic resonance spectroscopy, scintigraphy w...
Source: Journal of Medicine and Life - Category: General Medicine Tags: J Med Life Source Type: research
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