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Diagnostic and Interventional Radiology: Official Journal of the Turkish Society of Radiology

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https://www.readbyqxmd.com/read/28509667/evaluation-of-hippocampal-infolding-angle-and-incomplete-hippocampal-inversion-in-pediatric-patients-with-epilepsy-and-febrile-seizures
#1
Mehtap Beker Acay, Reşit Köken, Ebru Ünlü, Emre Kaçar, Çınar Balçık
PURPOSE: We aimed to investigate the frequency of incomplete hippocampal inversion (IHI) and the hippocampal infolding angle (HIA) in pediatric patients with no additional abnormal findings in the brain. METHODS: Pediatric brain magnetic resonance imaging (MRI) examinations conducted between September 2012 and February 2015 were screened and 83 patients with epilepsy, 49 patients with febrile convulsion, and 74 control patients were included in this retrospective study...
May 16, 2017: Diagnostic and Interventional Radiology: Official Journal of the Turkish Society of Radiology
https://www.readbyqxmd.com/read/28508760/radiologic-and-histopathologic-review-of-rare-benign-and-malignant-breast-diseases
#2
Emine Dağıstan, Betül Kızıldağ, Safiye Gürel, Yüksel Barut, Esra Paşaoğlu
High social awareness of breast diseases and the rise in breast imaging facilities have led to an increase in the detection of even rare benign and malignant breast lesions. Breast lesions are associated with a broad spectrum of imaging characteristics, and each radiologic imaging technique reflects different characteristics of them. We aimed to increase familiarity of the radiologist with these uncommon lesions as well as to correlate histopathologic findings with the radiologic imaging features of the tumors...
May 15, 2017: Diagnostic and Interventional Radiology: Official Journal of the Turkish Society of Radiology
https://www.readbyqxmd.com/read/28508759/mri-trus-fusion-for-electrode-positioning-during-irreversible-electroporation-for-treatment-of-prostate-cancer
#3
Alexander D J Baur, Federico Collettini, Judith Enders, Andreas Maxeiner, Vera Schreiter, Carsten Stephan, Bernhard Gebauer, Bernd Hamm, Thomas Fischer
We aimed to introduce an approach for image-guided positioning of electrodes for irreversible electroporation (IRE) in patients with prostate cancer using a magnetic resonance imaging-transrectal ultrasonography (MRI-TRUS) fusion technique. In 10 consecutive patients with biopsy-proven Gleason score ≤3+4 prostate cancer, 19 G electrodes were inserted into the prostate using a transperineal access. Magnetic resonance images of the prostate acquired before IRE were fused with transrectal ultrasound images acquired during IRE...
May 15, 2017: Diagnostic and Interventional Radiology: Official Journal of the Turkish Society of Radiology
https://www.readbyqxmd.com/read/28498108/imaging-for-abdominal-involvement-in-amyloidosis
#4
H Nursun Özcan, Mithat Haliloğlu, Cenk Sökmensüer, Deniz Akata, Mustafa Özmen, Muşturay Karçaaltıncaba
Involvement of the abdominal organs has variable presentations mostly without specific findings. The objective of this pictorial was to illustrate the computed tomography (CT) and magnetic resonance imaging (MRI) findings of abdominal involvement in systemic amyloidosis. Heterogeneous appearance of the liver, periportal involvement, diffuse low signal intensity of spleen on T2-weighted MRI, and thickened bowel wall may be helpful imaging findings when accompanied by presence or history of chronic inflammatory disease and clinical suspicion for amyloidosis...
May 12, 2017: Diagnostic and Interventional Radiology: Official Journal of the Turkish Society of Radiology
https://www.readbyqxmd.com/read/28498107/ultrasound-assisted-thrombolysis-of-an-occluded-transjugular-portosystemic-shunt
#5
Nicholas Hilliard, Teik Choon See, Nadeem Shaida
Transjugular intrahepatic portosystemic shunt (TIPS) insertion is commonly performed for refractory ascites or variceal bleeding. However, TIPS dysfunction can be seen in both early and late settings, with shunt thrombosis a particular problem. Treatment of shunt dysfunction commonly involves angioplasty and re-lining, with or without embolectomy, mechanical thrombectomy, or thrombolysis. Ultrasound-assisted thrombolysis has been shown to be successful for treatment of pulmonary embolism, deep vein thrombosis, and peripheral arterial thromboembolism, but has not been described before for TIPS occlusion...
May 12, 2017: Diagnostic and Interventional Radiology: Official Journal of the Turkish Society of Radiology
https://www.readbyqxmd.com/read/28468744/accuracy-of-turbo-spin-echo-diffusion-weighted-imaging-signal-intensity-measurements-for-the-diagnosis-of-cholesteatoma
#6
Burçe Özgen, Elif Bulut, Anıl Dolgun, Munir Demir Bajin, Levent Sennaroğlu
PURPOSE: We aimed to evaluate the diagnostic accuracy of turbo spin-echo diffusion-weighted imaging (TSE-DWI) at 3 T, for cholesteatoma (CS) diagnosis, using qualitative and quantitative methods with numerical assessment of signal intensity (SI), signal intensity ratios (SIR), and apparent diffusion coefficient (ADC) values. METHODS: In this retrospective study, two blinded observers independently evaluated the preoperative TSE-DWI images of 57 patients who were imaged with a presumed diagnosis of CS...
May 4, 2017: Diagnostic and Interventional Radiology: Official Journal of the Turkish Society of Radiology
https://www.readbyqxmd.com/read/28440784/dual-energy-ct-characteristics-of-colon-and-rectal-cancer-allows-differentiation-from-stool-by-dual-source-ct
#7
İlknur Özdeniz, İlkay S İdilman, Seyfettin Köklü, Erhan Hamaloğlu, Mustafa Özmen, Deniz Akata, Muşturay Karçaaltıncaba
PURPOSE: We aimed to determine dual-energy computed tomography (DECT) characteristics of colorectal cancer and investigate effectiveness of DECT method in differentiating tumor from stool in patients with colorectal cancer. METHODS: Fifty consecutive patients with colorectal tumors were enrolled. Staging was performed by DECT (80-140 kV) using dual-source CT after rectal air insufflation and without bowel preparation. Both visual and quantitative analyses were performed at 80 kV and 140 kV, on iodine map and virtual noncontrast (VNC) images...
April 25, 2017: Diagnostic and Interventional Radiology: Official Journal of the Turkish Society of Radiology
https://www.readbyqxmd.com/read/28420598/1-5-t-augmented-reality-navigated-interventional-mri-paravertebral-sympathetic-plexus-injections
#8
David R Marker, Paweena U Thainual, Tamas Ungi, Aaron J Flammang, Gabor Fichtinger, Iulian I Iordachita, John A Carrino, Jan Fritz
PURPOSE: The high contrast resolution and absent ionizing radiation of interventional magnetic resonance imaging (MRI) can be advantageous for paravertebral sympathetic nerve plexus injections. We assessed the feasibility and technical performance of MRI-guided paravertebral sympathetic injections utilizing augmented reality navigation and 1.5 T MRI scanner. METHODS: A total of 23 bilateral injections of the thoracic (8/23, 35%), lumbar (8/23, 35%), and hypogastric (7/23, 30%) paravertebral sympathetic plexus were prospectively planned in twelve human cadavers using a 1...
May 2017: Diagnostic and Interventional Radiology: Official Journal of the Turkish Society of Radiology
https://www.readbyqxmd.com/read/28420597/discrepant-lesion-size-estimated-on-t1-and-fat-suppressed-t2-weighted-mri-diagnostic-value-for-differentiation-between-inflammatory-pseudotumor-and-carcinoma-of-the-nasopharynx
#9
Hye Na Jung, Hyung Jin Kim, Yi Kyung Kim, Mina Song, Ha Yeon Kim, Kyung Min Park, Jihoon Cha, Sung Tae Kim
PURPOSE: Nasopharyngeal inflammatory pseudotumor (NIPT) is hard to differentiate from infiltrating nasopharyngeal carcinoma (NPC) on conventional magnetic resonance imaging (MRI). The purpose of this study is to determine whether discrepant lesion sizes estimated on T1- and fat-suppressed T2-weighted images can help distinguish between NIPT and NPC. METHODS: We retrospectively reviewed MRI data of histologically proven 14 NIPTs and 18 infiltrating NPCs. We measured the area of the lesion on contrast-enhanced T1-weighted, unenhanced T1-weighted, and fat-suppressed T2-weighted images by placing the largest possible polygonal region-of-interest within the lesion at the same level...
May 2017: Diagnostic and Interventional Radiology: Official Journal of the Turkish Society of Radiology
https://www.readbyqxmd.com/read/28414274/prepancreatic-postduodenal-portal-vein
#10
Mustafa Kemal Demir
No abstract text is available yet for this article.
May 2017: Diagnostic and Interventional Radiology: Official Journal of the Turkish Society of Radiology
https://www.readbyqxmd.com/read/28381389/assessment-of-chemotherapy-response-in-non-hodgkin-lymphoma-involving-the-neck-utilizing-diffusion-kurtosis-imaging-a-preliminary-study
#11
Rui Wu, Shi Teng Suo, Lian Ming Wu, Qiu Ying Yao, Hong Xia Gong, Jian Rong Xu
PURPOSE: We aimed to examine the utility of non-Gaussian diffusion kurtosis imaging (DKI) for assessment of chemotherapy response in patients with cervical (neck) non-Hodgkin lymphoma (NHL). METHODS: Patients with cervical NHL underwent 3.0 T magnetic resonance imaging with maximal b value of 2000 s/mm2 at baseline and seven days after chemotherapy onset. Apparent diffusion coefficient (ADC) value and diffusion kurtosis imaging maps for diffusion coefficient (D) and kurtosis (K) were calculated...
May 2017: Diagnostic and Interventional Radiology: Official Journal of the Turkish Society of Radiology
https://www.readbyqxmd.com/read/28362267/unintentionally-retained-vascular-devices-improving-recognition-and-removal
#12
Gilbert Whang, Ilya Lekht, Rita Krane, Greg Peters, Suzanne L Palmer
The increased demand for minimally invasive placement of intravascular medical devices has led to increased procedure-related complications, including retention of all or part of the implanted device. A number of risk factors can predispose to unintentionally retained vascular devices (uRVD); most are technical in etiology. Despite best efforts to insert and remove vascular devices properly, uRVD still occur. Prevention or early identification of uRVD is ideal; however, procedural complications are not always recognized at the time of device insertion or removal...
May 2017: Diagnostic and Interventional Radiology: Official Journal of the Turkish Society of Radiology
https://www.readbyqxmd.com/read/28360021/the-morbidly-adherent-placenta-when-and-what-association-of-signs-can-improve-mri-diagnosis-our-experience
#13
Anna Lia Valentini, Benedetta Gui, Valeria Ninivaggi, Maura Miccò, Michela Giuliani, Luca Russo, Maria Giulia Marini, Mauro Tintoni, Anna Franca Cavaliere, Lorenzo Bonomo
PURPOSE: We aimed to verify whether combination of specific signs improves magnetic resonance imaging (MRI) accuracy in morbidly adherent placenta (MAP). METHODS: MRI findings for MAP were retrospectively evaluated in 27 women. Histopathology was the reference standard, showing MAP in eight of 27 cases. Specificity, sensitivity, positive predictive value, and negative predictive value were calculated for all MRI signs. Two skilled radiologists analyzed MRI findings, resolving discrepancies by consensus, using three alternative diagnostic criteria during three consecutive sections...
May 2017: Diagnostic and Interventional Radiology: Official Journal of the Turkish Society of Radiology
https://www.readbyqxmd.com/read/28345524/conventional-mri-features-for-predicting-the-clinical-outcome-of-patients-with-invasive-placenta
#14
Ting Chen, Xiao Quan Xu, Hai Bin Shi, Zheng Qiang Yang, Xin Zhou, Yi Pan
PURPOSE: We aimed to evaluate whether morphologic magnetic resonance imaging (MRI) features could help to predict the maternal outcome after uterine artery embolization (UAE)-assisted cesarean section (CS) in patients with invasive placenta previa. METHODS: We retrospectively reviewed the MRI data of 40 pregnant women who have undergone UAE-assisted cesarean section due to suspected high risk of massive hemorrhage caused by invasive placenta previa. Patients were divided into two groups based on the maternal outcome (good-outcome group: minor hemorrhage and uterus preserved; poor-outcome group: significant hemorrhage or emergency hysterectomy)...
May 2017: Diagnostic and Interventional Radiology: Official Journal of the Turkish Society of Radiology
https://www.readbyqxmd.com/read/28345523/a-practical-formula-for-determining-growth
#15
Çağrı Türkoz, Emine Kaygısız, Çağrı Ulusoy, Can Ateş
PURPOSE: We aimed to establish a practical method to evaluate skeletal age using cervical vertebrae. METHODS: The study consisted of hand-wrist and cephalometric radiographs of 324 subjects (167 girls, 157 boys; age range, 7.3-17.2 years). Skeletal ages of the subjects were calculated from hand-wrist radiographs, and cervical vertebral bodies were measured using cephalometric radiographs. A single formula based on C3 and C4 vertebral body heights with different coefficients for each gender was derived using ridge regression analysis...
May 2017: Diagnostic and Interventional Radiology: Official Journal of the Turkish Society of Radiology
https://www.readbyqxmd.com/read/28302592/spectral-detector-ct-for-cardiovascular-applications
#16
Prabhakar Rajiah, Suhny Abbara, Sandra Simon Halliburton
Spectral detector computed tomography (SDCT) is a novel technology that uses two layers of detectors to simultaneously collect low and high energy data. Spectral data is used to generate conventional polyenergetic images as well as dedicated spectral images including virtual monoenergetic and material composition (iodine-only, virtual unenhanced, effective atomic number) images. This paper provides an overview of SDCT technology and a description of some spectral image types. The potential utility of SDCT for cardiovascular imaging and the impact of this new technology on radiation and contrast dose are discussed through presentation of initial patient studies performed on a SDCT scanner...
May 2017: Diagnostic and Interventional Radiology: Official Journal of the Turkish Society of Radiology
https://www.readbyqxmd.com/read/28287073/validation-of-a-ct-guided-intervention-robot-for-biopsy-and-radiofrequency-ablation-experimental-study-with-an-abdominal-phantom
#17
Hyung Jin Won, Namkug Kim, Guk Bae Kim, Joon Beom Seo, Hongho Kim
PURPOSE: We aimed to evaluate the accuracy of a needle-placement robot for biopsy and radiofrequency ablation on an abdominal phantom. METHODS: A master-slave robotic system has been developed that includes a needle-path planning system and a needle-inserting robot arm with computed tomography (CT) and CT fluoroscopy guidance. For evaluation of its accuracy in needle placement, a commercially available abdominal phantom (Model 057A; CIRS Inc.) was used. The liver part of the phantom contains multiple spherical simulated tumors of three different size spheres...
May 2017: Diagnostic and Interventional Radiology: Official Journal of the Turkish Society of Radiology
https://www.readbyqxmd.com/read/28287072/radiation-dose-reduction-comparative-assessment-of-publication-volume-between-interventional-and-diagnostic-radiology
#18
Jan Hansmann, Thomas Henzler, Ron C Gaba, John N Morelli
PURPOSE: We aimed to quantify and compare awareness regarding radiation dose reduction within the interventional radiology and diagnostic radiology communities. METHODS: Abstracts accepted to the annual meetings of the Society of Interventional Radiology (SIR), the Cardiovascular and Interventional Radiological Society of Europe (CIRSE), the Radiological Society of North America (RSNA), and the European Congress of Radiology (ECR) between 2005 and 2015 were analyzed using the search terms "interventional/computed tomography" and "radiation dose/radiation dose reduction...
May 2017: Diagnostic and Interventional Radiology: Official Journal of the Turkish Society of Radiology
https://www.readbyqxmd.com/read/28256449/evaluation-of-ct-vascularization-patterns-for-survival-prognosis-in-patients-with-hepatocellular-carcinoma-treated-by-conventional-tace
#19
Davut B Hasdemir, Lukas Aguirre Dávila, Nora Schweitzer, Bernhard C Meyer, Armin Koch, Arndt Vogel, Frank Wacker, Thomas Rodt
PURPOSE: Transarterial chemoembolization (TACE) is an established treatment for intermediate stage hepatocellular carcinoma (HCC). The aim of this retrospective study was to evaluate the power of lesion vascularization criteria based on computed tomography for prognosis of overall survival before initiation of treatment. METHODS: A total of 59 patients with intermediate stage HCC treated with TACE as first-line treatment were retrospectively evaluated. TACE procedures were performed using doxorubicin, cisplatin, and lipiodol...
May 2017: Diagnostic and Interventional Radiology: Official Journal of the Turkish Society of Radiology
https://www.readbyqxmd.com/read/28223261/use-of-transabdominal-ultrasound-guided-transjugular-portal-vein-puncture-on-radiation-dose-in-transjugular-intrahepatic-portosystemic-shunt-formation
#20
Aniket N Tavare, Andrew Wigham, Anastasia Hadjivassilou, Abdulrahman Alvi, Anthie Papadopoulou, Antony Goode, Nick Woodward, David Patch, Dominic Yu, Neil Davies
PURPOSE: Transjugular intrahepatic portosystemic shunt (TIPS) creation is used to treat portal hypertension complications. Often the most challenging and time-consuming step in the procedure is the portal vein (PV) puncture. TIPS procedures are associated with prolonged fluoroscopy time and high patient radiation exposures. We measured the impact of transabdominal ultrasound guidance for PV puncture on duration of fluoroscopy time and dose. METHODS: We retrospectively analyzed the radiation dose for all TIPS performed over a four-year period with transabdominal ultrasound guidance for PV puncture (n=212, with 210 performed successfully and data available for 206); fluoroscopy time, dose area product (DAP) and skin dose were recorded...
May 2017: Diagnostic and Interventional Radiology: Official Journal of the Turkish Society of Radiology
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