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Diagnostic and Interventional Imaging

S Hari, S B Paul, R Vidyasagar, E Dhamija, A D Adarsh, S Thulkar, S Mathur, V Sreenivas, S Sharma, A Srivastava, V Seenu, R Prashad
PURPOSE: To evaluate the role of SWE in characterizing breast masses and ascertain whether additional use of SWE to ultrasound for evaluating BI-RADS 3 and 4a masses could help reduce long-term follow-up and unnecessary biopsies of these suspicious breast masses. MATERIALS AND METHODS: This prospective, cross-sectional study was performed between June 2013 and November 2014. All enrolled patients underwent clinical breast examination, ultrasound, SWE and ultrasound-guided core biopsy of the breast mass...
July 10, 2018: Diagnostic and Interventional Imaging
M Issaoui, A Debost-Legrand, K Skerl, B Chauveau, B Magnin, A Delabaere, L Boyer, M-P Sauvant-Rochat, D Lémery
PURPOSE: To identify the effects of shear wave elastography in the fetus for evaluation in widespread use. MATERIALS AND METHODS: The Health Risk Assessment method proposed by the National Research Council was used with literature to evaluate the safety of shear wave elastography for the fetus regarding its potential effects in human tissues. RESULTS: The experimental and epidemiologic data from 25 articles showed that shear wave elastography maintained the same thermal effect as pulsed Doppler ultrasound already authorized in obstetrics, and that cavitation effect on fetal tissue is improbable...
June 19, 2018: Diagnostic and Interventional Imaging
A Novanta, G Herpe, G Vesselle, A Guibal, S Velasco, P Chan, P Ingrand, S Boucebi, J-P Tasu
PURPOSE: To define microwave ablation (MWA) charts according to time and power in human renal tumors and to compare them to the charts given by the HS AMICA manufacturer. MATERIALS AND METHODS: A total of 54 patients with 54 renal cancers who underwent MWA were included. There were 36 men and 18 women with a mean age of 72.5±10[SD] years (range: 40-91years). The system used for MWA was HS AMICA with the Amica-probe V4 applicator. The following variables (antero-posterior diameter, transverse diameter, cranio-caudal diameter and volume were measured on computed tomography examinations performed one month after MWA...
June 15, 2018: Diagnostic and Interventional Imaging
S B Hiremath, A A Gautam, V Sasindran, J Therakathu, G Benjamin
Cerebrospinal fluid (CSF) leaks are extracranial egress of CSF into the adjacent paranasal sinus or tympanomastoid cavity due to an osteodural defect involving skull base. It can be due to a multitude of causes including accidental or iatrogenic trauma, congenital malformations and spontaneous leaks. Accurate localization of the site of the leak, underlying causes and appropriate therapy is necessary to avoid associated complications. In this paper relevant anatomy, clinical diagnosis, imaging modalities and associated findings are discussed along with a brief mention about management...
June 14, 2018: Diagnostic and Interventional Imaging
R Lecigne, L Protin-Catteau, G Caby-Mac, C François, C Hoeffel
No abstract text is available yet for this article.
June 14, 2018: Diagnostic and Interventional Imaging
E Perdikakis, I Fezoulidis, V Tzortzis, C Rountas
PURPOSE: To present anatomical variations of left internal spermatic vein and a comparison between treatments with hydrogel-coated and non-coated platinum coils in patients with varicocele. MATERIALS AND METHODS: A total of 153 men (mean age, 27.5±6.7 [SD] years; range: 18-45 years) with left sided varicocele underwent coil embolization. Anatomic variants of gonadal vein were categorized into five subtypes (I-V). Additional venous collaterals were also recorded...
June 14, 2018: Diagnostic and Interventional Imaging
S Thakran, P K Gupta, V Kabra, I Saha, P Jain, R K Gupta, A Singh
OBJECTIVES: The objective of this study was to quantify the hemodynamic parameters using first pass analysis of T1 -perfusion magnetic resonance imaging (MRI) data of human breast and to compare these parameters with the existing tracer kinetic parameters, semi-quantitative and qualitative T1 -perfusion analysis in terms of lesion characterization. MATERIALS AND METHODS: MRI of the breast was performed in 50 women (mean age, 44±11 [SD] years; range: 26-75) years with a total of 15 benign and 35 malignant breast lesions...
June 14, 2018: Diagnostic and Interventional Imaging
A Crombé, N Alberti, V Catena, X Buy, M Kind
No abstract text is available yet for this article.
June 14, 2018: Diagnostic and Interventional Imaging
E Jambon, A Hocquelet, F Petitpierre, Y Le Bras, C Marcelin, V Dubuisson, N Grenier, F Cornelis
PURPOSE: To compare intervention duration and fluoroscopy time for proximal embolization of splenic arteries in acute trauma using the Penumbra occlusion device (POD® ), coils or Amplatzer™ vascular plug (AVP). MATERIAL AND METHODS: A total of 29 patients with splenic injury without vascular injury who were treated by proximal splenic artery embolization using POD® (n=12), coils (n=9) or AVP (n=8) were retrospectively included. There were 25 men and 4 women with a median age of 34 years (range: 10-69 years)...
June 14, 2018: Diagnostic and Interventional Imaging
Y Kikuchi, A Hiwatashi, O Togao, K Yamashita, D Momosaka, H Honda
No abstract text is available yet for this article.
June 14, 2018: Diagnostic and Interventional Imaging
J-N Dacher, P Michelin, S Bejar, B Dubourg
No abstract text is available yet for this article.
June 14, 2018: Diagnostic and Interventional Imaging
H Akai, K Yasaka, A Kunimatsu, M Nojima, T Kokudo, N Kokudo, K Hasegawa, O Abe, K Ohtomo, S Kiryu
RATIONALE AND OBJECTIVES: To investigate the impact of random survival forest (RSF) classifier trained by radiomics features over the prediction of the overall survival of patients with resectable hepatocellular carcinoma (HCC). MATERIALS AND METHODS: The dynamic computed tomography data of 127 patients (97 men, 30 women; mean age, 68 years) newly diagnosed with resectable HCC were retrospectively analyzed. After manually setting the region of interest to include the tumor within the slice at its maximum diameter, texture analyses were performed with or without a Laplacian of Gaussian filter...
June 14, 2018: Diagnostic and Interventional Imaging
C Roy, R Quin, A Labani, P Leyendecker, L Mertz, M Ohana
PURPOSE: To evaluate the best collimation used in wide volume (WV) mode to cover the abdomen in computed tomography (CT) urography in terms of radiation dose and image quality. MATERIALS AND METHODS: This study was performed on a 320×0.5mm detector row CT unit. The first part identified the lowest volume CT dose index (CTDIvol) by using the topograms data of 25 medium size patients (13 men and 12 women; mean age: 52±9 [SD] years; age range: 46-68 years) using different collimations on WV from 6cm to 16cm and the one of the helical mode for the same coverage length...
June 14, 2018: Diagnostic and Interventional Imaging
A Blum, A Noël, D Regent, N Villani, R Gillet, P Gondim Teixeira
Tomosynthesis is an imaging technique that uses standard X-ray equipment with digital flat panel detectors to create tomographic images from very low-dose projections obtained at different angles. These images are parallel to the plane of the detector. Filtered back-projection or iterative reconstruction algorithms can be used to produce them. Iterative reconstruction used with a metal artifact reduction algorithm reduces metal artifacts, and therefore, improve image quality and in-depth spatial resolution...
May 30, 2018: Diagnostic and Interventional Imaging
J F Hak, A Dabadie, G Hery, A Aschero, C Desvignes, H Pico, B Roquelaure, A Delarue, B Bourliere, N Colavolpe, G Gorincour, P Auquier, P Petit
PURPOSE: To assess the capabilities of a velocity ratio>3 for the diagnosis of Budd-Chiari syndrome (BCS) in children after split liver transplantation using Doppler ultrasonography (DUS). MATERIALS AND METHODS: A total of 28 children who underwent liver transplantation using a split procedure were included. There were 11boys and 17girls with a mean age of 3.8years (range: 0.7-12years). Velocity ratio between blood velocity upstream of the anastomosis and that at the level of the inferior vena cava anastomosis was calculated...
May 28, 2018: Diagnostic and Interventional Imaging
A Gotra, C Doucet, P Delli Fraine, A Bessissow, C Dey, B Gallix, L-M Boucher, D Valenti
PURPOSE: To compare changes in inferior vena cava (IVC) filter positional parameters from insertion to removal and examine how they affect retrievability amongst various filter types. MATERIALS AND METHODS: A total of 447 patients (260 men, 187 women) with a mean age of 55 years (range: 13-91 years) who underwent IVC filter retrieval between 2007-2014 were retrospectively included. Post-insertion and pre-retrieval angiographic studies were assessed for filter tilt, migration, strut wall penetration and retrieval outcomes...
May 14, 2018: Diagnostic and Interventional Imaging
M H Choi, S N Oh, G E Park, D-M Yeo, S E Jung
PURPOSE: To evaluate the interobserver and intermethod correlations of histogram metrics of dynamic contrast-enhanced magnetic resonance imaging (DCE-MRI) parameters acquired by multiple readers using the single-section and whole-tumor volume methods. MATERIALS AND METHODS: Four DCE parameters (Ktrans , Kep , Ve , Vp ) were evaluated in 45 patients (31 men and 14 women; mean age, 61±11 years [range, 29-83 years]) with locally advanced rectal cancer using pre-chemoradiotherapy (CRT) MRI...
May 10, 2018: Diagnostic and Interventional Imaging
A Zedira, J Greffier, X Brunet, F Pereira, P-F Winum, M Granier
PURPOSE: To evaluate operator and patient irradiation during radiofrequency ablation (RFA) of common atrial flutter (AF) using three different fluoroscopy settings. MATERIAL AND METHOD: A total of 38 patients who underwent RFA of AF with three different fluoroscopy settings (low dose, standard dose and collimated field) were included. Twelve patients (11 men, 1 woman; mean age, 67±12 [SD]years) were included in the low dose group (3.75 frames per second), 13 patients (13 men; mean age, 66±8 [SD]years) were included in the standard dose group (7...
May 10, 2018: Diagnostic and Interventional Imaging
B Liu, S Gao, Z Chang, C Wang, Z Liu, J Zheng
PURPOSE: To evaluate the use of 80 kVp and iterative model reconstruction (IMR) in lower extremity computed tomography angiography (CTA). MATERIALS AND METHODS: Sixty patients were randomly assigned to Group A or Group B (both n=30) to further undergo CTA. Group A received Protocol 1 (P1) with 120 kVp, 180mAs, and 100mL of contrast agent with filtered back-projection (FBP). Group B received Protocol 2 (P2) and Protocol 3 (P3) with 80 kVp, 140mAs and 75mL of contrast agent with hybrid iterative reconstruction (P2) and IMR (P3)...
May 9, 2018: Diagnostic and Interventional Imaging
B Coulier, I Gielen, G C Colin, F Pierard, N Floris, F Richelle
No abstract text is available yet for this article.
May 9, 2018: Diagnostic and Interventional Imaging
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