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MRi CT ultrasound

Kathryn Tinsley Anderson, Marisa A Bartz-Kurycki, Mary T Austin, Akemi L Kawaguchi, Lillian S Kao, Kevin P Lally, Kuojen Tsao
BACKGROUND: Evidence-based guidelines recommend ultrasound (US) over computed tomography (CT) as the primary imaging modality for suspected pediatric appendicitis. Continued high rates of CT use may result in significant unnecessary radiation exposure in children. The purpose of this study was to evaluate variables associated with preoperative CT use in pediatric appendectomy patients. METHODS: A retrospective cohort study of pediatric patients who underwent appendectomy for acute appendicitis in 2015-2016 at National Surgical Quality Improvement Program for Pediatrics (NSQIP-P) hospitals was conducted...
May 29, 2018: Journal of Pediatric Surgery
Wei Chen, Ruoling Han
RATIONALE: Gallbladder duplication is a rare congenital disorder, which could cause an increasing risk of complications during surgery. The coexistence of cholangiocarcinoma with double gallbladder is extremely rare, which might lead to an even higher possibility of misdiagnosis and postsurgery complications. PATIENT CONCERNS: A 58-year-old female was presented with abdominal pain and jaundice. Abdominal ultrasonography showed duplication of gallbladder, one of which with a thickened wall and a rough surface...
June 2018: Medicine (Baltimore)
Hongjuan Fang, Elizabeth Berg, Xiaoguang Cheng, Wei Shen
PURPOSE OF REVIEW: Abdominal obesity, especially the increase of visceral adipose tissue (VAT), is closely associated with increased mortality related to cardiovascular disease, diabetes, and fatty liver disease. This review provides an overview of the recent advances for abdominal obesity measurement. RECENT FINDINGS: Compared to simple waist circumference, emerging three-dimensional (3D) body-scanning techniques also measure abdominal volume and shape. Abdominal dimension measures have been implemented in bioelectrical impedance analysis to improve accuracy when estimating VAT...
June 18, 2018: Current Opinion in Clinical Nutrition and Metabolic Care
Israt S Alam, Idan Steinberg, Ophir Vermesh, Nynke S van den Berg, Eben L Rosenthal, Gooitzen M van Dam, Vasilis Ntziachristos, Sanjiv S Gambhir, Sophie Hernot, Stephan Rogalla
Intraoperative imaging (IOI) is performed to guide delineation and localization of regions of surgical interest. While oncological surgical planning predominantly utilizes x-ray computed tomography (CT), magnetic resonance imaging (MRI), and ultrasound (US), intraoperative guidance mainly remains on surgeon interpretation and pathology for confirmation. Over the past decades however, intraoperative guidance has evolved significantly with the emergence of several novel imaging technologies, including fluorescence-, Raman, photoacoustic-, and radio-guided approaches...
June 18, 2018: Molecular Imaging and Biology: MIB: the Official Publication of the Academy of Molecular Imaging
V Schininà, F Albarello, M Cristofaro, F Di Stefano, N Fusco, G Cuzzi, S M Arend, D Goletti, E Busi Rizzi
BACKGROUND: Hepatic tuberculosis (TB) shows non-specific symptoms, and liver imaging may provide diagnostic clues. Here we describe a series of patients with hepatic TB showing characteristic radiological findings. METHODS: Single-centre retrospective evaluation of patients with hepatic TB diagnosed over a period of 16 years who underwent ultrasound, computed tomography (CT) and/or magnetic resonance imaging (MRI). Hepatic lesions were classified as miliary, nodular, serohepatic or cholangitis...
July 1, 2018: International Journal of Tuberculosis and Lung Disease
Elizabeth Snyder, Misun Hwang, Bruno P Soares, Aylin Tekes
Ultrasound, CT and MRI may all be used in the evaluation of the posterior fossa in neonates depending on the clinical scenario. Ultrasonography is particularly valuable for the evaluation of the neonatal brain because of the lack of ionizing radiation and the ability to perform exams at the bedside and, importantly, advancements in ultrasound technology now allow for diagnostic-quality imaging. While CT is still the initial imaging modality of choice in most neurologic emergencies, in the neonate, ultrasound is the first line in nontraumatic emergencies...
2018: Handbook of Clinical Neurology
Jesse A Guittard, Gabe Wardi, Edward M Castillo, Blake J Stock, Shannon Heuberger, Christian A Tomaszewski
BACKGROUND: Despite sufficient literature analyzing macroscopic and microscopic methods of addressing emergency department (ED) operations, there is a paucity of studies that analyze methods between these extremes. OBJECTIVE: We conducted a quasi-experimental study incorporating a pre/post-intervention comparison to determine whether interdepartmental cooperation is effective at improving ED operations by combining microscopic and macroscopic concepts. METHODS: We performed an analysis of operational and financial data from a cooperative investment in imaging transport personnel between the emergency and radiology departments...
June 6, 2018: Journal of Emergency Medicine
Maliha Sadick, René Müller-Wille, Moritz Wildgruber, Walter A Wohlgemuth
BACKGROUND:  Vascular anomalies are a diagnostic and therapeutic challenge. They require dedicated interdisciplinary management. Optimal patient care relies on integral medical evaluation and a classification system established by experts in the field, to provide a better understanding of these complex vascular entities. METHOD:  A dedicated classification system according to the International Society for the Study of Vascular Anomalies (ISSVA) and the German Interdisciplinary Society of Vascular Anomalies (DiGGefA) is presented...
June 6, 2018: RöFo: Fortschritte Auf Dem Gebiete der Röntgenstrahlen und der Nuklearmedizin
Robert Louis, Daniella Levy-Erez, Anne Marie Cahill, Kevin E Meyers
BACKGROUND: Fibromuscular dysplasia (FMD) is a non-inflammatory vascular disease that in children unlike in adults shows no sex predilection. FMD is often underdiagnosed, and its pathophysiology is unclear. Delayed diagnosis may lead to refractory hypertension and decreases the chance of successful treatment. Doppler ultrasound (US), magnetic resonance angiography (MRA), computed tomography angiography (CTA), and catheter-based angiography (angiography) are currently used to help make a clinicoradiological diagnosis of FMD...
June 4, 2018: Pediatric Nephrology: Journal of the International Pediatric Nephrology Association
Andrew K Corse, Heather Kurtis
BACKGROUND Secondary polycythemia is a potential complication of an erythropoietin-secreting renal cell carcinoma. Increased red blood cell mass can elevate blood viscosity, which can impair blood flow, making individuals susceptible to vaso-occlusive events. One of the serious potential complications of a hyper-viscous state is ischemic stroke. CASE REPORT We present the case of a patient who was brought to the Emergency Department with right-sided extremity weakness and slurred speech consistent with acute ischemic stroke...
June 4, 2018: American Journal of Case Reports
T P Hellebust
Imaging has probably been the most important driving force for the development of brachytherapy treatments the last 20 years. Due to implementation of three-dimensional imaging, brachytherapy is nowadays a highly accurate and reliable treatment option for many cancer patients. To be able to optimize the dose distribution in brachytherapy the anatomy and the applicator(s) or sources should be correctly localised in the images. For computed tomography (CT) the later criteria is easily fulfilled for most brachytherapy sites...
May 29, 2018: Cancer Radiothérapie: Journal de la Société Française de Radiothérapie Oncologique
Guila Delouya, Jean-Francois Carrier, Renée Xavier-Larouche, Yannick Hervieux, Dominic Béliveau-Nadeau, David Donath, Daniel Taussky
Purpose To compare the impact of the fusion of intraoperative transrectal ultrasound (TRUS) images with day 30 computed tomography (CT) and magnetic resonance imaging (MRI) on prostate volume and dosimetry. Methods and materials Seventy-five consecutive patients with CT and MRI obtained on day 30 with a Fast Spin Echo T2-weighted magnetic resonance (MR) sequence were analyzed. A rigid manual registration was performed between the intraoperative TRUS and day-30 CT based on the prostate volume. A second manual rigid registration was performed between the intraoperative TRUS and the day-30 MRI...
March 29, 2018: Curēus
Sayf Al-Katib, Robert Colvin, Farnoosh Sokhandon
Intravascular large B-cell lymphoma is a rare subtype of extranodal diffuse B-cell lymphoma characterized by proliferation of neoplastic cells within the lumen of small and medium sized vessels. Clinical and imaging findings are nebulous as the intravascular subtype of lymphoma can involve a multitude of organs. Involvement of the gallbladder is extremely uncommon, and imaging findings can be easily confused for more prevalent pathologies. We report a case of intravascular large B-cell lymphoma in an 83-year-old male and review clinical presentation and imaging findings on CT, ultrasound, hepatobiliary iminodiacetic acid (HIDA) scan, and MRI...
2018: Case Reports in Radiology
Mario Ricciardi, Diana Lenoci
Traumatic lesions of the patellar ligament (PL) are rare in dogs. The resulting injury can be a complete or partial laceration, depending on the quantity of torn collagen fibres. Information obtained from imaging evaluation is of great value to the clinical approach towards PL injuries, because subsequent treatment options are affected by the distinction between complete or partial tears. Imaging diagnosis of PL damage in veterinary practice commonly relies on radiographic examination through the recognition of indirect signs, such as "patella alta", bone fragments at the level of the patellar or tibial insertion, and soft tissue opacity at the cranial aspect of the joint...
2018: Open Veterinary Journal
L Lu, H Z Shi, Z J Xiao, D Wang, C L Li
Objective: To improve the clinical diagnosis and treatment of primary renal lymphoma. Methods: Clinical data of 5 cases ( 2 male cases and 3 female cases) with primary renal lymphoma was reviewed. The age of patients was 55 to 70 years old, with a mean age of 62 years. No history of glomerulonephritis or nephropathy was recorded. All the cases were unilateral, including 3 cases in the left side and 2 cases in right. The major clinical manifestations were as follows: 2 cases of left lumbar pain, 1 case of gross hematuria, 1 case of hematuria under microscope, and 1 case receiving adjuvant chemotherapy after 12 years...
May 15, 2018: Zhonghua Yi Xue za Zhi [Chinese medical journal]
Su Joa Ahn, Jeong Min Lee, Won Chang, Sang Min Lee, Hyo-Jin Kang, Hyun-Kyung Yang, Joon Koo Han
OBJECTIVES: To prospectively evaluate the clinical value of real-time ultrasonography (US)-computed tomography (CT)/magnetic resonance imaging (MRI) fusion imaging for percutaneous needle biopsy of focal liver lesions (FLLs), and to compare its biopsy success rate with that of conventional US-guided biopsy in a propensity-score matched group. METHODS: This study was approved by our Institutional Review Board and informed consent was obtained from all patients enrolled in the prospective study group...
June 2018: European Journal of Radiology
Frank J Ong, Basma A Ahmed, Stephan M Oreskovich, Denis P Blondin, Tahniyah Haq, Norman B Konyer, Michael D Noseworthy, Francois Haman, Andre C Carpentier, Katherine M Morrison, Gregory R Steinberg
The activation of brown adipose tissue (BAT) is associated with reductions in circulating lipids and glucose in rodents and contributes to energy expenditure in humans indicating the potential therapeutic importance of targetting this tissue for the treatment of a variety of metabolic disorders. In order to evaluate the therapeutic potential of human BAT, a variety of methodologies for assessing the volume and metabolic activity of BAT are utilized. Cold exposure is often utilized to increase BAT activity but inconsistencies in the characteristics of the exposure protocols make it challenging to compare findings...
May 31, 2018: Clinical Science (1979-)
Katrine Fuglsang, Ingfrid S Haldorsen, Elisabeth Avall Lundqvist, Gabriel Lindahl, Henrik Roed, Kathrine Woie, Päivi Pakarinen, Asgeir Thoroddsen, Maarit Anttila, Jan Blaakaer
INTRODUCTION: Cervical cancer patients in the Nordic countries are increasingly undergoing pretreatment imaging by ultrasound, magnetic resonance imaging (MRI), position emission tomography - computed tomography (PET-CT) or computed tomography, or sentinel lymph node (SLN) procedure. The present survey reports the influence of pretreatment imaging findings on the recorded clinical International Federation of Gynecology and Obstetrics (FIGO) stage in Nordic countries and its impact on treatment planning and preferred surgical approach in cervical cancer...
May 24, 2018: Acta Obstetricia et Gynecologica Scandinavica
S V Onishchenko, V V Darvin, N V Klimova, E A Krasnov
AIM: To develop an optimal diagnostic algorithm in order to the most reliable decrease of inflammatory changes severity in large duodenal papilla in patients with chronic opisthorchiasis. MATERIAL AND METHODS: Medical reports of 384 patients with opisthorchiasis-induced cholangitis have been analyzed. Diagnostic methods were abdominal ultrasound, endoscopic ultrasound of terminal common bile duct, CT scans, MRI of abdominal organs including magnetic resonance cholangiopancreatography and esophagogastroduodenoscopy with biopsy of the papilla, ERCP and PTHC...
2018: Khirurgiia
E M Jung, D A Clevert
CLINICAL/METHODICAL ISSUE: Contrast-enhanced ultrasound (CEUS) is becoming increasingly important for the detection and characterization of malignant liver lesions and allows percutaneous treatment when surgery is not possible. Contrast-enhanced ultrasound image fusion with computed tomography (CT) and magnetic resonance imaging (MRI) opens up further options for the targeted investigation of a modified tumor treatment. METHODICAL INNOVATIONS: Ultrasound image fusion offers the potential for real-time imaging and can be combined with other cross-sectional imaging techniques as well as CEUS...
May 24, 2018: Der Radiologe
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