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https://www.readbyqxmd.com/read/28210507/super-selective-mesenteric-embolization-provides-effective-control-of-lower-gi-bleeding
#1
Toan Pham, Bob Anh Tran, Kevin Ooi, Marcus Mykytowycz, Stephen McLaughlin, Matthew Croxford, Iain Skinner, Ian Faragher
Introduction. We aimed to assess the efficacy and safety of digital subtraction angiography (DSA) and super-selective mesenteric artery embolization (SMAE) in managing lower GI bleeding (LGIB). Method. A retrospective case series of patients with LGIB treated with SMAE in our health service. Patients with confirmed active LGIB, on either radionuclide scintigraphy (RS) or contrast-enhanced multidetector CT angiography (CE-MDCT), were referred for DSA +/- SMAE. Data collected included patient characteristics, screening modality, bleeding territory, embolization technique, technical and clinical success, short-term to medium-term complications, 30-day mortality, and progression to surgery related to procedural failure or complications...
2017: Radiology Research and Practice
https://www.readbyqxmd.com/read/28209261/the-feasibility-of-transcatheter-aortic-valve-implantation-using-the-edwards-sapien-3-for-patients-with-severe-bicuspid-aortic-stenosis
#2
Takahide Arai, Thierry Lefèvre, Thomas Hovasse, Marie-Claude Morice, Mauro Romano, Hakim Benamer, Philippe Garot, Kentaro Hayashida, Erik Bouvier, Bernard Chevalier
BACKGROUND: There are currently only limited data focusing on transcatheter aortic valve implantation (TAVI) for bicuspid aortic valves (BAV) patients using the Edwards SAPIEN (Irvine, CA, USA) 3 (S3) valve. The aim of this study was to evaluate the feasibility and efficacy of TAVI using the S3 in patients with BAV. METHODS: A total of 153 TAVI cases performed with the S3 were included. BAV was detected by multidetector computed tomography (MDCT) in 10 (7%) patients...
February 10, 2017: Journal of Cardiology
https://www.readbyqxmd.com/read/28203311/portal-annular-pancreas-a-rare-and-overlooked-anomaly
#3
Puneet Mittal, Ranjana Gupta, Amit Mittal, Arshad Ahmed
BACKGROUND: Portal annular pancreas is a rare pancreatic developmental anomaly which is often overlooked at imaging, and often diagnosed retrospectively when it is detected incidentally at the time of surgery. Although the anomaly itself is asymptomatic, it becomes important in cases where pancreatic resection/anastomosis is planned, because of varying ductal anatomy, risk of ductal injury and increased risk of postoperative pancreatic fistula formation. CASE REPORT: We present imaging findings in a case of portal annular pancreas in a 45-year-old male patient...
2017: Polish Journal of Radiology
https://www.readbyqxmd.com/read/28197883/central-airway-pathology-clinic-features-ct-findings-with-pathologic-and-virtual-endoscopy-correlation
#4
REVIEW
Daniel Barnes, José Gutiérrez Chacoff, Mariana Benegas, Rosario J Perea, Teresa M de Caralt, José Ramirez, Ivan Vollmer, Marcelo Sanchez
OBJECTIVES: To describe the imaging features of the central airway pathology, correlating the findings with those in pathology and virtual endoscopy. To propose a schematic and practical approach to reach diagnoses, placing strong emphasis on multidetector computed tomography (MDCT) findings. METHODS: We reviewed our thoracic pathology database and the central airway pathology-related literature. Best cases were selected to illustrate the main features of each disease...
February 15, 2017: Insights Into Imaging
https://www.readbyqxmd.com/read/28197876/enhancing-pancreatic-mass-with-normal-serum-ca19-9-key-mdct-features-to-characterize-pancreatic-neuroendocrine-tumours-from-its-mimics
#5
Liang Zhu, Hua-Dan Xue, Wei Liu, Xuan Wang, Xin Sui, Qin Wang, Daming Zhang, Ping Li, Zheng-Yu Jin
OBJECTIVES: To determine key MDCT features for characterizing pancreatic neuroendocrine tumours (PNET) from their mimics, which manifest as enhancing pancreatic mass with normal serum CA19-9 level. METHODS: This retrospective study had institutional review board approval and informed consent was waived. Preoperative multiphase MDCT of 74 patients with enhancing pancreatic masses and normal serum CA19-9 levels were included. Surgical pathologies were PNET (n = 42), microcystic serous cystadenomas (m-SCN, n = 12) and solid pseudopapillary epithelial neoplasms (SPEN, n = 20)...
February 15, 2017: La Radiologia Medica
https://www.readbyqxmd.com/read/28196474/biodegradable-magnesium-herbert-screw-image-quality-and-artifacts-with-radiography-ct-and-mri
#6
Lena Sonnow, Sören Könneker, Peter M Vogt, Frank Wacker, Christian von Falck
BACKGROUND: Magnesium alloys have recently been rediscovered as biodegradable implants in musculoskeletal surgery. This study is an ex-vivo trial to evaluate the imaging characteristics of magnesium implants in different imaging modalities as compared to conventional metallic implants. METHODS: A CE-approved magnesium Herbert screw (MAGNEZIX®) and a titanium screw of the same dimensions (3.2x20 mm) were imaged using different modalities: digital radiography (DX), multidetector computed tomography (MDCT), high resolution flat panel CT (FPCT) and magnetic resonance imaging (MRI)...
February 14, 2017: BMC Medical Imaging
https://www.readbyqxmd.com/read/28190526/focused-assessment-with-sonography-for-trauma-fast-versus-multidetector-computed-tomography-in-hemodynamically-stable-emergency-patients
#7
R Fornell Pérez
This critically appraised topic (CAT) study aims to evaluate the quality and extent of the scientific evidence that supports the use of focused assessment with sonography for trauma (FAST) versus multidetector computed tomography (MDCT) in hemodynamically stable trauma patients in the emergency room. An efficient search of the literature yielded several recent articles with a high level of evidence. The CAT study concludes that FAST is an acceptable initial imaging test in hemodynamically stable patients, although its performance is limited in certain circumstances...
February 10, 2017: Radiología
https://www.readbyqxmd.com/read/28184357/delayed-splenic-rupture-normal-appearing-spleen-on-the-initial-multidetector-computed-tomography-mdct-can-sometimes-be-misleading
#8
Alireza Hamidian Jahromi, Matias Migliaro, Melisa Romano, Guillermo Sangster
INTRODUCTION: Delayed splenic rupture (DSR) is an unusual outcome following blunt abdominal trauma. Although DSR is defined as bleeding more than 48 hours after blunt trauma in a previously hemodynamically stable patient, a review of the reported cases in the literature shows that in almost all of the cases the initial CT imaging revealed some form of damage to the spleen. CASE PRESENTATION: Here we describe an extremely rare condition in a case that presented with a DSR following blunt trauma and had a normal appearing spleen in the initial post trauma MDCT scan...
November 2016: Trauma Monthly
https://www.readbyqxmd.com/read/28182111/a-rare-case-of-angina-pectoris-with-the-longest-ectopic-left-main-coronary-artery-arising-from-right-sinus-of-valsalva-and-a-prepulmonic-course
#9
Santosh Kumar Sinha, Vikas Mishra, Nasar Abdali, Karandeep Singh, Mukesh Jitendra Jha, Ashutosh Kumar
Knowledge of the morphoanatomical characteristics of the main trunk of the left coronary artery as well as its variations is cornerstone of hemodynamic, correct interpretation of coronary angiogram and for revascularization purpose. The left main coronary artery (LMCA) ranges from 3 to 6 mm in diameter and may be up to 10 to 15 mm in length in humans. We here report a case of the longest anomalous LMCA (56 mm) reported so far in a 35-year-old man with chronic stable angina arising from right sinus of valsalva as seen on conventional angiogram and multidetector computerized tomogram (MDCT)...
2017: Case Reports in Cardiology
https://www.readbyqxmd.com/read/28177650/ct-angiography-of-suspected-peripheral-artery-disease-comparison-of-contrast-enhancement-in-the-lower-extremities-of-patients-undergoing-and-those-not-undergoing-hemodialysis
#10
Takanori Masuda, Yoshinori Funama, Takeshi Nakaura, Naoyuki Imada, Tomoyasu Sato, Tomokazu Okimoto, Kazuo Awai
OBJECTIVE: The objective of our study was to compare contrast enhancement on CT angiography (CTA) images of the lower extremity in patients with suspected peripheral artery disease who did not undergo hemodialysis (HD) and patients who were scanned before or after HD. MATERIALS AND METHODS: We divided 287 consecutive patients who underwent CTA of the lower extremity on a 64-MDCT scanner into three groups: group 1 patients (n = 151) were not dependent on HD, group 2 patients (n = 70) were dependent on HD and underwent HD less than 24 hours after CTA, and group 3 (n = 66) were dependent on HD and underwent HD less than 24 hours before CTA...
February 8, 2017: AJR. American Journal of Roentgenology
https://www.readbyqxmd.com/read/28177567/diagnostic-accuracy-of-indocyanine-green-fluorescence-imaging-and-multi-detector-row-computed-tomography-for-identifying-hepatocellular-carcinoma-with-liver-explant-correlation
#11
Koichi Masuda, Junichi Kaneko, Yoshikuni Kawaguchi, Junichi Togashi, Junichi Arita, Nobuhisa Akamatsu, Yoshihiro Sakamoto, Kiyoshi Hasegawa, Sumihito Tamura, Norihiro Kokudo
AIM: Indocyanine green (ICG)-fluorescence imaging is useful for detecting hepatocellular carcinoma (HCC) during surgery, but its accuracy has not been compared to that of multi-detector row computed tomography (MDCT) with liver explant correlation. The aim of present study was to clarify the precise diagnostic accuracy of ICG-fluorescence imaging for detecting HCC in a whole explant liver survey. METHODS: Thirty-three patients with end-stage liver disease (mean age: 53 years) were prospectively enrolled in the present study...
February 8, 2017: Hepatology Research: the Official Journal of the Japan Society of Hepatology
https://www.readbyqxmd.com/read/28176217/can-mdct-or-eus-features-predict-the-histopathological-grading-scheme-of-pancreatic-neuroendocrine-neoplasms
#12
Hui Zhu, Lang Ying, Wei Tang, Xiujiang Yang, Bo Sun
PURPOSE: To identify whether the features of preoperative MDCT or EUS could predict the histopathological grading scheme of pancreatic neuroendocrine neoplasms (pNENs). METHODS: A total of 25 patients with pNENs were enrolled in the present study. The qualitative and quantitative variables were reviewed. The qualitative variables included location, contour, border, necrosis, intratumoral vessel, homogeneity, calcification, peripancreatic fat/vessel infiltration, pancreatic duct dilatation, mass within pancreas, lymphadenopathy and hepatic metastasis on MDCT and border, echogenicity, cystic/solid and blood flow on EUS...
February 7, 2017: La Radiologia Medica
https://www.readbyqxmd.com/read/28162223/impact-of-subclinical-vascular-complications-detected-by-systematic-postprocedural-multidetector-computed-tomography-after-transcatheter-aortic-valve-implantation-using-balloon-expandable-edwards-sapien-xt-heart-valve
#13
Yuki Kakefuda, Kentaro Hayashida, Yoshitake Yamada, Fumiaki Yashima, Taku Inohara, Ryo Yanagisawa, Makoto Tanaka, Takahide Arai, Takashi Kawakami, Yuichiro Maekawa, Hikaru Tsuruta, Yuji Itabashi, Mitsushige Murata, Motoaki Sano, Kazuma Okamoto, Akihiro Yoshitake, Hideyuki Shimizu, Masahiro Jinzaki, Keiichi Fukuda
Complications after transcatheter aortic valve implantation (TAVI) remain an important issue. This study aimed to evaluate the impact of systematic postprocedural multidetector computed tomography (MDCT) to detect subclinical complications after TAVI. From October 2013 to August 2015, a total of 135 patients who underwent transfemoral TAVI (n = 116) or transapical TAVI (n = 19) with Sapien XT and MDCT preprocedure and postprocedure were enrolled. Postprocedural MDCT findings were compared with the preprocedural MDCT findings...
January 5, 2017: American Journal of Cardiology
https://www.readbyqxmd.com/read/28154579/rare-presentation-of-left-lower-lobe-pulmonary-artery-dissection
#14
René Hako, Ján Fedačko, Štefan Tóth, Radoslav Morochovič, Pavol Kristian, Tímea Pekárová, Petri Tuomainen, Daniel Pella
Background. Pulmonary arterial dissection with chronic pulmonary arterial hypertension as its major cause is a very rare but life-threatening condition. In most cases the main pulmonary trunk is the affected site usually without involvement of its branches. Segmental or lobar pulmonary artery dissection is extremely rare. Case Presentation. We report a unique case of left lower lobe pulmonary artery dissection in a 70-year-old male, with confirmed chronic pulmonary hypertension. To confirm dissection MDCT pulmonary angiography was used...
2017: Case Reports in Medicine
https://www.readbyqxmd.com/read/28150282/socioeconomic-status-relationship-with-coronary-artery-calcification-and-pericardial-fat
#15
Hussein A Nafakhi, Abdulameer Almosawi, Hasan Alnafakh, Widad Mousa
BACKGROUND: Little data currently exist supporting the correlation of socioeconomic status (SES) to markers of subclinical coronary atherosclerosis. The main aim was to investigate the relationship of SES measured by economic status and educational level with coronary artery calcification (CAC) and pericardial fat volume (PFV) assessed by multi-detector CT (MDCT). METHODS: Two hundred twenty consecutive patients with suspected coronary artery disease who underwent 64-slice MDCT angiography for assessment of coronary atherosclerosis were recruited between January 2014 and March 2015...
February 2, 2017: Kardiologia Polska
https://www.readbyqxmd.com/read/28128650/investigation-of-an-optimised-scanning-protocol-for-the-dentomaxillofacial-region-using-320-slice-multidetector-computed-tomography
#16
Wei-Chan Lin, Hsueh-Han Wang, Wen-Lin Hsu, Bi-Hui Cao, De-Ji Chen, Chia-Jung Tsai
OBJECTIVES: To propose an imaging protocol that provides satisfactory image quality for oral examination while minimizing radiation dosage using 320-slice multidetector computed tomography (320-MDCT). METHODS: An anthropomorphic head phantom was scanned using 320-MDCT with protocols combining different scanning modes: volume scanning (whole or local) vs. helical scanning (80- or 64-slice detectors); tube-voltage settings (80, 120 and 135 kVp); and tube-current settings (60, 80, 100 and 120 mA)...
January 27, 2017: Dento Maxillo Facial Radiology
https://www.readbyqxmd.com/read/28127214/impact-of-coronary-artery-calcification-on-percutaneous-coronary-intervention-and-postprocedural-complications
#17
Rami M Abazid, M Obadah Kattea, Osama A Smettei, Yasir Beshir, Haitham Sakr
BACKGROUND: Excessive coronary calcification can lead to adverse outcomes after percutaneous coronary intervention (PCI). We therefore evaluated the impact of coronary calcium score (CCS) measured by multidetector computed tomography (MDCT) on immediate complications of PCI and rate of restenosis. METHODS: We performed a single-center retrospective analysis of 84 patients with coronary stenosis diagnosed by MDCT who underwent PCI. The Agatston method was used to measure total, target-vessel, and segmental (stent deployment site) CCS...
January 2017: Journal of the Saudi Heart Association
https://www.readbyqxmd.com/read/28126218/imaging-genitourinary-trauma
#18
REVIEW
Bari Dane, Alexander B Baxter, Mark P Bernstein
Contrast-enhanced multidetector computed tomography (MDCT) has become a critical tool in the evaluation of the trauma patient. MDCT can quickly and accurately assess trauma patients for renal, ureteral, and bladder injuries. Moreover, CT guides clinical management triaging patients to those requiring discharge, observation, angioembolization, and surgery. Recognition of urinary tract trauma on initial scan acquisition should prompt delayed excretory phase imaging to identify urine leaks. Urethral and testicular trauma are imaged with retrograde urethrography and sonography, respectively...
March 2017: Radiologic Clinics of North America
https://www.readbyqxmd.com/read/28123975/utility-of-cone-beam-computed-tomography-in-the-assessment-of-the-porto-spleno-mesenteric-venous-system
#19
REVIEW
Karunakaravel Karuppasamy
The common diagnostic tools available to evaluate the porto-spleno-mesenteric venous (PSMV) system provide either good hemodynamic information with limited morphological details [e.g., ultrasonography (US)] or excellent tomographic display of the anatomy with limited information about flow patterns [e.g., multidetector computed tomography (MDCT) and magnetic resonance imaging]. Although catheter-directed selective digital subtraction angiography (DSA) can provide excellent information about flow at a high temporal resolution and can generate images at a high spatial resolution, this technique is often limited by a lack of cross-sectional detail...
December 2016: Cardiovascular Diagnosis and Therapy
https://www.readbyqxmd.com/read/28115002/left-innominate-vein-stenosis-in-an-asymptomatic-population-a-retrospective-analysis-of-212-cases
#20
Xiangjiang Guo, Yaxue Shi, Hui Xie, Lan Zhang, Guanhua Xue, Leyi Gu, Changning Hao, Shuofei Yang, Kejia Kan
BACKGROUND: Although left innominate vein (LIV) stenosis has been demonstrated to be attributed to compression by adjacent anatomical structures, most of the studies are focusing on hemodialysis patients with clinical symptoms compatible with LIV stenosis. The goal of this study was to retrospectively investigate the incidence of LIV stenosis and its influencing factors in an asymptomatic, non-hemodialysis population, which has rarely been performed. METHODS: From Jan 2013 to Dec 2014, 212 consecutive cases undergoing a chest multi-detector computed tomography (MDCT) angiography were enrolled...
January 23, 2017: European Journal of Medical Research
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