Quantification of blood flow in the fetus with cardiovascular magnetic resonance imaging using Doppler ultrasound gating: validation against metric optimized gating

Fetal cardiovascular magnetic resonance (CMR) imaging is used clinically and for research, but has been previously limited due to lack of direct gating methods. A CMR-compatible Doppler ultrasound (DUS) gating...
Source: Journal of Cardiovascular Magnetic Resonance - Category: Radiology Authors: Tags: Research Source Type: research

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AbstractPurpose of ReviewPatients with inflammatory arthropathies have a high rate of fragility fractures. Diagnostic assessment and monitoring of bone density and quality are therefore critically important. Here, we review standard and advanced techniques to measure bone density and quality, specifically focusing on patients with inflammatory arthropathies.Recent FindingsCurrent standard procedures are dual-energy X-ray absorptiometry (DXA) and quantitative computed tomography (QCT). DXA-based newer methods include trabecular bone score (TBS) and vertebral fracture assessment (VFA). More advanced imaging methods to measur...
Source: Current Rheumatology Reports - Category: Rheumatology Source Type: research
ConclusionPreoperative US should be used as the first line in predicting minimal ETE, and MRI should be added in extensive ETE assessment. Compared with US, MRI had higher specificity and PPV in detecting the overall ETE of PTC.
Source: La Radiologia Medica - Category: Radiology Source Type: research
Conclusions Computed tomography scans were performed in 13.9% of patients with suspected AP. The overall AP rate was 28.4%. We plan to increase the use of magnetic resonance imaging and other modalities to reduce overall computed tomography usage.
Source: Pediatric Emergency Care - Category: Emergency Medicine Tags: Original Research-QI Source Type: research
Contrast enhanced ultrasound is a radiation-free imaging modality which uses encapsulated gas microbubbles for improved visualization of the vascular bed deep within the tissue. It has recently been used to enable imaging with unprecedented subwavelength spatial resolution by relying on super-resolution techniques. A typical preprocessing step in super-resolution ultrasound is to separate the microbubble signal from the cluttering tissue signal. This step has a crucial impact on the final image quality. Here, we propose a new approach to clutter removal based on robust principle component analysis (PCA) and deep learning. ...
Source: IEE Transactions on Medical Imaging - Category: Biomedical Engineering Source Type: research
Condition:   Breast Cancer Interventions:   Diagnostic Test: Serum Autotaxin;   Radiation: chest x-ray;   Diagnostic Test: Breast ultrasound or mammography;   Diagnostic Test: Histopathological examination of breast mass specimens;   Radiation: Magnetic Resonance Imaging ( MRI) and Bone scan;   Diagnostic Test: Peripheral  haemogram;   Diagnostic Test: Renal and liver functions;   Diagnostic Test: Prothrombin time and concentration;   Diagnostic Test: Cancer Antigen...
Source: ClinicalTrials.gov - Category: Research Source Type: clinical trials
Pseudoaneurysms of the foot are rare and can occur from a range of etiologies, including laceration from a foreign body. The majority of reported cases have been diagnosed by computed tomography, magnetic resonance imaging, or angiography. These tests require intravenous access and contrast, confer radiation, take time to perform and interpret, are expensive, and are not always readily available in the acute setting. No prior reported pseudoaneurysms of the foot have been diagnosed by point-of-care ultrasound (POCUS).
Source: The Journal of Emergency Medicine - Category: Emergency Medicine Authors: Tags: Ultrasound in Emergency Medicine Source Type: research
AbstractDeep invasive gastrointestinal endometriosis (DIGIE) is a frequent and severe presentation of endometriosis. Although most cases invade the rectosigmoid colon, DIGIE can involve any portion of the gastrointestinal tract from the stomach to the rectum, and is commonly multifocal and multicentric. Although histopathologic confirmation with surgery remains the gold standard for diagnosis, ultrasound (US) and magnetic resonance imaging (MRI) are the key non-invasive imaging modalities for initial assessment. US may be preferred as a screening study because of its easy availability and low-cost. Pelvic MRI and magnetic ...
Source: Abdominal Imaging - Category: Radiology Source Type: research
CONCLUSIONS: Positional change affects the prostate translocation, however, the effect on prostate distortion appears to be negligible. Prostate translocation in latero-lateral direction can be minimized with larger bladder volumes. Thereby, prostate translocation needs to be considered alongside software misregistration error; however, positional change should not affect software registration of MRI/US fusion-guided prostate biopsy. PMID: 32223873 [PubMed - as supplied by publisher]
Source: Canadian Urological Association Journal - Category: Urology & Nephrology Authors: Tags: Can Urol Assoc J Source Type: research
Shabnam Bhandari Grover, Neha Antil, Amit Katyan, Heena Rajani, Hemal Grover, Pratima Mittal, Sudha PrasadIndian Journal of Radiology and Imaging 2020 30(1):32-45 Infertility is a major social and clinical problem affecting 13–15% of couples worldwide. The pelvic causes of female infertility are categorized as ovarian disorders, tubal, peritubal disorders, and uterine disorders. Appropriate selection of an imaging modality is essential to accurately diagnose the aetiology of infertlity, since the imaging diagnosis directs the appropriate treatment to be instituted. Imaging evaluation begins with hystero- salping...
Source: Indian Journal of Radiology and Imaging - Category: Radiology Authors: Source Type: research
CONCLUSION: Clinicians should consider the possibility of SPN for pancreatic heterogeneous masses. Multiple diagnostic imaging modalities and EUS-FNA may contribute to the preoperative diagnosis of this disease. PMID: 32211105 [PubMed]
Source: International Journal of Clinical and Experimental Pathology - Category: Pathology Authors: Tags: Int J Clin Exp Pathol Source Type: research
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