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https://www.readbyqxmd.com/read/29147883/clinical-and-radiological-diagnosis-of-gallstone-ileus-a-mini-review
#1
Liisa Chang, Minna Chang, Hanna M Chang, Aina I Chang, Fuju Chang
Gallstone ileus is a rare cause of bowel obstruction, which mainly affects the elderly population. The associated mortality is estimated to be up to 30%. The presentation of gallstone ileus is notoriously non-specific, and this often contributes to the delay in diagnosis. The diagnosis of gallstone ileus relies on a radiological approach, and herein we discuss the benefits and drawbacks of the use of different modalities of radiological imaging: plain abdominal films, computed tomography, magnetic resonance imaging, and ultrasound scanning...
November 16, 2017: Emergency Radiology
https://www.readbyqxmd.com/read/29143222/quantitative-analysis-of-the-level-of-readability-of-online-emergency-radiology-based-patient-education-resources
#2
David R Hansberry, Michael D'Angelo, Michael D White, Arpan V Prabhu, Mougnyan Cox, Nitin Agarwal, Sandeep Deshmukh
PURPOSE: The vast amount of information found on the internet, combined with its accessibility, makes it a widely utilized resource for Americans to find information pertaining to medical information. The field of radiology is no exception. In this paper, we assess the readability level of websites pertaining specifically to emergency radiology. METHODS: Using Google, 23 terms were searched, and the top 10 results were recorded. Each link was evaluated for its readability level using a set of ten reputable readability scales...
November 15, 2017: Emergency Radiology
https://www.readbyqxmd.com/read/29134356/secretin-stimulated-ultrasound-estimation-of-pancreatic-secretion-in-cystic-fibrosis-validated-by-magnetic-resonance-imaging
#3
Trond Engjom, Erling Tjora, Gaute Wathle, Friedemann Erchinger, Birger N Lærum, Odd H Gilja, Ingfrid Salvesen Haldorsen, Georg Dimcevski
OBJECTIVES: Secretin-stimulated magnetic resonance imaging (s-MRI) is the best validated radiological modality assessing pancreatic secretion. The purpose of this study was to compare volume output measures from secretin-stimulated transabdominal ultrasonography (s-US) to s-MRI for the diagnosis of exocrine pancreatic failure in cystic fibrosis (CF). METHODS: We performed transabdominal ultrasonography and MRI before and at timed intervals during 15 minutes after secretin stimulation in 21 CF patients and 13 healthy controls...
November 13, 2017: European Radiology
https://www.readbyqxmd.com/read/29133247/contrast-enhanced-ultrasound-identifies-hepatocellular-carcinoma-in-cirrhosis-a-large-multicenter-retrospective-study
#4
Eleonora Terzi, Massimo Iavarone, Maurizio Pompili, Letizia Veronese, Giuseppe Cabibbo, Mirella Fraquelli, Laura Riccardi, Ludovico De Bonis, Angelo Sangiovanni, Simona Leoni, Maria Assunta Zocco, Sandro Rossi, Nicola Alessi, Stephanie R Wilson, Fabio Piscaglia, Alessandro Granito, Veronica Salvatore, Francesco Tovoli, Matteo Angelo Manini, Gian Lodovico Rapaccini, Maria Elena Ainora, Valentina Ravetta, Giorgia Ghittoni, Agostino Ventra, Giuseppe Mogavero
BACKGROUND & AIMS: The use of contrast enhanced ultrasound (CEUS) for the diagnosis of hepatocellular carcinoma (HCC) in cirrhosis was questioned for the risk of false positive diagnosis in case of cholangiocarcinoma. The American College of Radiology has recently released a scheme (CEUS LI-RADS) classifying lesions at risk for HCC investigated by CEUS. Aim of the present study was to validate this LI-RADS scheme for the diagnosis of HCC. METHODS: A total of 1006 nodules in 848 patients with chronic liver disease at risk for HCC collected in 5 Italian centers were retrospectively analyzed...
November 10, 2017: Journal of Hepatology
https://www.readbyqxmd.com/read/29127760/preoperative-breast-mri-examination-for-all-patients-with-histologically-proven-breast-cancer-a-concept-for-a-prospective-multicenter-trial
#5
Christina Kaiser, Christina Kehrer, Mignon-Denise Keyver-Paik, Thomas Hecking, Tiyasha Hosne Ayub, Claudia Leutner, Hans Schild, Walther Kuhn
Background A published retrospective data of our study group demonstrated that premenopausal women, patients with lobular invasive breast cancer or patients with high breast density [American College of Radiology (ACR) classification 3+4] significantly benefit from magnetic resonance imaging (MRI) leading to additional detection of malignant foci of 20.2% in the index and 2.5% in the contralateral breast, which would otherwise not be detected by routine imaging. Critics of preoperative MRI focus on higher false-positive rates leading to unnecessary surgical procedures and mastectomies...
November 11, 2017: Hormone Molecular Biology and Clinical Investigation
https://www.readbyqxmd.com/read/29108077/characterization-of-focal-liver-lesions-using-ceus-and-mri-with-liver-specific-contrast-media-experience-of-a-single-radiologic-center
#6
Lukas Philipp Beyer, Florian Wassermann, Benedikt Pregler, Katharina Michalik, Janine Rennert, Isabel Wiesinger, Christian Stroszczynski, Philipp Wiggermann, Ernst Michael Jung
Aim The purpose of this study was to compare contrast-enhanced ultrasound (CEUS), magnetic resonance imaging (MRI) using liver-specific contrast agent and a combination of both for the characterization of focal liver lesions (FLL). Methods 83 patients with both benign and malignant liver lesions were examined using CEUS and MRI after the intravenous administration of liver-specific contrast media. All patients had inconclusive results from prior imaging examinations. Histopathological specimens could be obtained in 53 patients...
November 6, 2017: Ultraschall in der Medizin
https://www.readbyqxmd.com/read/29101993/acr-appropriateness-criteria-%C3%A2-staging-of-pancreatic-ductal-adenocarcinoma
#7
Aliya Qayyum, Eric P Tamm, Ihab R Kamel, Peter J Allen, Hina Arif-Tiwari, Victoria Chernyak, Tamas A Gonda, Joseph R Grajo, Nicole M Hindman, Jeanne M Horowitz, Harmeet Kaur, Michelle M McNamara, Richard B Noto, Pavan K Srivastava, Tasneem Lalani
Pancreatic adenocarcinoma is associated with poor overall prognosis. Complete surgical resection is the only possible option for cure. As such, increasingly complex surgical techniques including sophisticated vascular reconstruction are being used. Continued advances in surgical techniques, in conjunction with use of combination systemic therapies, and radiation therapy have been suggested to improve outcomes. A key aspect to surgical success is reporting of pivotal findings beyond absence of distant metastases, such as tumor size, location, and degree of tumor involvement of specific vessels associated with potential perineural tumor spread...
November 2017: Journal of the American College of Radiology: JACR
https://www.readbyqxmd.com/read/29101991/acr-appropriateness-criteria-%C3%A2-renovascular-hypertension
#8
Howard J Harvin, Nupur Verma, Paul Nikolaidis, Michael Hanley, Vikram S Dogra, Stanley Goldfarb, John L Gore, Stephen J Savage, Michael L Steigner, Richard Strax, Myles T Taffel, Jade J Wong-You-Cheong, Don C Yoo, Erick M Remer, Karin E Dill, Mark E Lockhart
Renovascular hypertension is the most common type of secondary hypertension and is estimated to have a prevalence between 0.5% and 5% of the general hypertensive population, and an even higher prevalence among patients with severe hypertension and end-stage renal disease, approaching 25% in elderly dialysis patients. Investigation for renal artery stenosis is appropriate when clinical presentation suggests secondary hypertension rather than primary hypertension, when there is not another known cause of secondary hypertension, and when intervention would be carried out if a significant renal artery stenosis were identified...
November 2017: Journal of the American College of Radiology: JACR
https://www.readbyqxmd.com/read/29101982/acr-appropriateness-criteria-%C3%A2-imaging-after%C3%A2-total%C3%A2-knee-arthroplasty
#9
Mary G Hochman, Yulia V Melenevsky, Darlene F Metter, Catherine C Roberts, Jenny T Bencardino, R Carter Cassidy, Michael G Fox, Mark J Kransdorf, Douglas N Mintz, Nehal A Shah, Kirstin M Small, Stacy E Smith, Kathy M Tynus, Barbara N Weissman
Total knee arthroplasty (TKA) is the most commonly performed joint replacement procedure in the United States and annual demand for primary TKA is expected to grow by 673% by 2030. The first part provides an overview of imaging modalities (radiographs, CT, MRI, ultrasound, and various nuclear medicine studies) and discusses their usefulness in the imaging evaluation of TKA. The second part focuses on evidence-based imaging and imaging-guided intervention algorithms for the workup of TKA and its complications, including routine follow-up, component wear, periprosthetic infection, aseptic loosening, granulomas/osteolysis, conventional and rotational instability, periprosthetic fracture, patellar complications, and a variety of periprosthetic soft tissue abnormalities...
November 2017: Journal of the American College of Radiology: JACR
https://www.readbyqxmd.com/read/29101980/acr-appropriateness-criteria-%C3%A2-chronic-liver%C3%A2-disease
#10
Jeanne M Horowitz, Ihab R Kamel, Hina Arif-Tiwari, Sumeet K Asrani, Nicole M Hindman, Harmeet Kaur, Michelle M McNamara, Richard B Noto, Aliya Qayyum, Tasneem Lalani
Because liver fibrosis can be treated, it is important to diagnose liver fibrosis noninvasively and monitor response to treatment. Although ultrasound (grayscale and Doppler) can diagnose cirrhosis, it does so unreliably using morphologic and sonographic features and cannot diagnose the earlier, treatable stages of hepatic fibrosis. Transient elastography, ultrasound elastography with acoustic radiation force impulse, and MR elastography are modalities that can assess for hepatic fibrosis. Although all international organizations recommend ultrasound for screening for hepatocellular carcinoma, ultrasound is particularly limited for identifying hepatocellular carcinoma in patients with obesity, nonalcoholic fatty liver disease, and nodular cirrhotic livers...
November 2017: Journal of the American College of Radiology: JACR
https://www.readbyqxmd.com/read/29101979/acr-appropriateness-criteria-%C3%A2-breast-cancer-screening
#11
Martha B Mainiero, Linda Moy, Paul Baron, Aarati D Didwania, Roberta M diFlorio, Edward D Green, Samantha L Heller, Anna I Holbrook, Su-Ju Lee, Alana A Lewin, Ana P Lourenco, Kara J Nance, Bethany L Niell, Priscilla J Slanetz, Ashley R Stuckey, Nina S Vincoff, Susan P Weinstein, Monica M Yepes, Mary S Newell
Breast cancer screening recommendations are based on risk factors. For average-risk women, screening mammography and/or digital breast tomosynthesis is recommended beginning at age 40. Ultrasound (US) may be useful as an adjunct to mammography for incremental cancer detection in women with dense breasts, but the balance between increased cancer detection and the increased risk of a false-positive examination should be considered in the decision. For intermediate-risk women, US or MRI may be indicated as an adjunct to mammography depending upon specific risk factors...
November 2017: Journal of the American College of Radiology: JACR
https://www.readbyqxmd.com/read/29101952/a-radiologist-s-view-of-tumor-ablation-in-the-radiology-suite
#12
REVIEW
Sharath K Bhagavatula, Jason Lane, Paul Shyn
Image-guided percutaneous, minimally invasive ablation techniques offer a wide variety of new modalities to treat tumors in some of the most medically complicated patients coming to our hospitals. The use of computed tomography, PET, ultrasound imaging, and MRI to guide radiofrequency ablation, microwave ablation, and cryoablation techniques now makes it possible to treat patients on a short stay or outpatient basis with very good immediate outcomes. This rapid expansion of new tumor ablation techniques often presents challenges for the non-operating room anesthesia team...
December 2017: Anesthesiology Clinics
https://www.readbyqxmd.com/read/29101951/an-anesthesiologist-s-view-of-tumor-ablation-in-the-radiology-suite
#13
REVIEW
Annie Amin, Jason Lane, Thomas Cutter
The advent of radiology image-guided tumor ablation procedures has opened up a new era in minimally invasive procedures. Using CT, MRI, ultrasound, and other modalities, radiologists and surgeons can now ablate a tumor through percutaneous entry sites. What traditionally was done in an operating room via large open incisions, with multiple days in the hospital recovering, is now becoming an outpatient procedure via these new techniques. Anesthesiologists play a critical role in optimizing outcome in these patients...
December 2017: Anesthesiology Clinics
https://www.readbyqxmd.com/read/29079248/machine-learning-for-predicting-patient-wait-times-and-appointment-delays
#14
Catherine Curtis, Chang Liu, Thomas J Bollerman, Oleg S Pianykh
Being able to accurately predict waiting times and scheduled appointment delays can increase patient satisfaction and enable staff members to more accurately assess and respond to patient flow. In this work, the authors studied the applicability of machine learning models to predict waiting times at a walk-in radiology facility (radiography) and delay times at scheduled radiology facilities (CT, MRI, and ultrasound). In the proposed models, a variety of predictors derived from data available in the radiology information system were used to predict waiting or delay times...
October 24, 2017: Journal of the American College of Radiology: JACR
https://www.readbyqxmd.com/read/29075857/preoperative-imaging-overestimates-the-tumor-size-in-pancreatic-neuroendocrine-neoplasms-associated-with-multiple-endocrine-neoplasia-type-1
#15
V Polenta, E P Slater, P H Kann, M B Albers, J Manoharan, A Ramaswamy, A H Mahnken, D K Bartsch
BACKGROUND: Radiological tumor size of non-functioning pancreatic neuroendocrine neoplasms (Nf-pNENs) associated with multiple endocrine neoplasia type 1 (MEN1) is a crucial parameter to indicate surgery. The aim of this study was to compare radiological size (RS) and pathologic size (PS) of MEN1 associated with pNENs. METHODS: Prospectively collected data of MEN1 patients who underwent pancreatic resections for pNENs were retrospectively analyzed. RS was defined as the largest tumor diameter measured on endoscopic ultrasound (EUS), magnetic resonance imaging (MRI) or computed tomography (CT)...
October 26, 2017: World Journal of Surgery
https://www.readbyqxmd.com/read/29064653/prostate-cancer-recurrence-in-vas-deferens-fusion-image-guide-as-an-important-tool-in-dignosis
#16
Leonardo Guedes Moreira Valle, Antônio Rahal, Priscila Mina Falsarella, Juliano Ribeiro de Andrade, Oren Smaletz, Akemi Osawa, Rodrigo Gobbo Garcia
The biochemical recurrence after local treatment for prostate cancer is an often challenging condition of clinical management. The aim of this report is to demonstrate the importance of the association of various imaging methods in the identification and subsequent accurate percutaneous biopsy in patients with recurrence of prostate cancer, especially in unusual sites. An 86 years old male with biochemical recurrence, during radiological investigation a PET-MRI was noted the presence of an asymmetry of the vas deferens with PSMA- 68Ga uptaken, suggesting the recurrence...
October 24, 2017: International Braz J Urol: Official Journal of the Brazilian Society of Urology
https://www.readbyqxmd.com/read/29052024/multimodality-imaging-in-secondary-postpartum-or-postabortion-hemorrhage-retained-products-of-conception-and-related-conditions
#17
REVIEW
Yuko Iraha, Masahiro Okada, Masafumi Toguchi, Kimei Azama, Keiko Mekaru, Tadatsugu Kinjo, Wataru Kudaka, Yoichi Aoki, Hajime Aoyama, Akiko Matsuzaki, Sadayuki Murayama
Secondary postpartum hemorrhage (PPH) and postabortion hemorrhage are rare complications. Retained products of conception (RPOC) is among the most common causes of both secondary PPH and postabortion hemorrhage. Other less common causes of secondary PPH are uterine vascular abnormalities such as arteriovenous malformations and pseudoaneurysms. These are usually related to a history of a procedure such as dilation and curettage or cesarean delivery. Subinvolution of the placental site is an idiopathic cause of secondary PPH; this condition may be underrecognized and therefore could have a higher incidence than currently reported...
October 19, 2017: Japanese Journal of Radiology
https://www.readbyqxmd.com/read/29024292/hepatic-cystic-echinococcosis-in-australia-an-update-on-diagnosis-and-management
#18
REVIEW
Ben Keong, Bruce Wilkie, Tom Sutherland, Adrian Fox
BACKGROUND: Echinococcosis is an uncommonly encountered zoonotic disease caused by the taeniid Echinococcus. The only endemic species in Australia, Echinococcus granulosus, forms cysts in the liver in 70% of cases. The aim of this study was to review the literature to provide an evidence-based narrative update on the diagnosis and management of hepatic cystic echinococcosis in Australia. METHODS: We reviewed the literature, utilizing multiple research databases and citation tracking...
October 11, 2017: ANZ Journal of Surgery
https://www.readbyqxmd.com/read/28987653/diagnostic-hierarchy-of-radiological-features-in-soft-tissue-tumours-and-proposition-of-a-simple-diagnostic-algorithm-to-estimate-malignant-potential-of-an-unknown-mass
#19
Leonhard Gruber, Hannes Gruber, Anna K Luger, Bernhard Glodny, Benjamin Henninger, Alexander Loizides
OBJECTIVE: To quantify the diagnostic utility of imaging features in soft tissue masses (STMs) and to provide a ranked list of predictors for malignancy. SUBJECTS AND METHODS: Imaging features in 260 cases of STMs with verified histology were assessed. Diagnostic properties including sensitivity, specificity, positive and negative predictive values, likelihood/odds ratios (OR) and normalized variance (NV) via random forest analysis were calculated. The diagnostic utility of an 8-item checklist consisting of the highest-ranked features was evaluated through a receiver-operating-characteristics (ROC) curve...
October 2017: European Journal of Radiology
https://www.readbyqxmd.com/read/28956080/-ultrasound-training-in-the-professional-development-of-radiological-specialists-concepts-and-challenges
#20
REVIEW
Marc-André Weber, Stefan Delorme
ISSUE: Ultrasound is an integral part of imaging diagnostics but, unlike CT or MRI, requires the physician to have advanced technical skills for the implementation and documentation of studies. CURRENT SITUATION: Owing to poor remuneration and the large effort required, ultrasound is not a priority at many institutions, and compared to CT, MRI or interventions, little reward is given to those committed to ultrasound. Intense practical teaching is rarely given. As a result, residents have to teach themselves or gain experience during rotations outside radiology...
September 27, 2017: Der Radiologe
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