scholarly journals Effectiveness of coil embolization of cerebral aneurysms under high magnification using biplane flat panel detector

2013 ◽  
Vol 7 (1) ◽  
pp. 51-57
Author(s):  
Naosuke KANENAKA ◽  
Hiroaki SATO ◽  
Hajime ABE ◽  
Takahide NEJO ◽  
Atsushi FUKUI ◽  
...  
Keyword(s):  
Coil Embolization ◽  
Cerebral Aneurysms ◽  
High Magnification ◽  
Flat Panel ◽  
Flat Panel Detector

scholarly journals Flat Panel Detector Angiographic CT for Stent-Assisted Coil Embolization of Broad-Based Cerebral Aneurysms

2007 ◽  
Vol 28 (10) ◽  
pp. 1902-1908 ◽  
Author(s):  
G. Richter ◽  
T. Engelhorn ◽  
T. Struffert ◽  
M. Doelken ◽  
O. Ganslandt ◽  
...  
Keyword(s):  
Coil Embolization ◽  
Cerebral Aneurysms ◽  
Flat Panel ◽  
Flat Panel Detector ◽  
Angiographic Ct

scholarly journals Flat Panel Detector Angiographic CT in the Management of Aneurysmal Rupture During Coil Embolization

2008 ◽  
Vol 29 (8) ◽  
pp. 1581-1584 ◽  
Author(s):  
T. Engelhorn ◽  
T. Struffert ◽  
G. Richter ◽  
M. Doelken ◽  
O. Ganslandt ◽  
...  
Keyword(s):  
Coil Embolization ◽  
Flat Panel ◽  
Aneurysmal Rupture ◽  
Flat Panel Detector ◽  
Angiographic Ct

Noninvasive patient tracker mask for spinal 3D navigation: does the required large-volume 3D scan involve a considerably increased radiation exposure?

2020 ◽  
Vol 33 (6) ◽  
pp. 838-844
Author(s):  
Jan-Helge Klingler ◽  
Ulrich Hubbe ◽  
Christoph Scholz ◽  
Florian Volz ◽  
Marc Hohenhaus ◽  
...  
Keyword(s):  
Radiation Exposure ◽  
Image Data ◽  
3D Image ◽  
Flat Panel ◽  
3D Navigation ◽  
Data Set ◽  
Dose Area Product ◽  
Flat Panel Detector ◽  
3D Scan ◽  
Area Product

OBJECTIVEIntraoperative 3D imaging and navigation is increasingly used for minimally invasive spine surgery. A novel, noninvasive patient tracker that is adhered as a mask on the skin for 3D navigation necessitates a larger intraoperative 3D image set for appropriate referencing. This enlarged 3D image data set can be acquired by a state-of-the-art 3D C-arm device that is equipped with a large flat-panel detector. However, the presumably associated higher radiation exposure to the patient has essentially not yet been investigated and is therefore the objective of this study.METHODSPatients were retrospectively included if a thoracolumbar 3D scan was performed intraoperatively between 2016 and 2019 using a 3D C-arm with a large 30 × 30–cm flat-panel detector (3D scan volume 4096 cm3) or a 3D C-arm with a smaller 20 × 20–cm flat-panel detector (3D scan volume 2097 cm3), and the dose area product was available for the 3D scan. Additionally, the fluoroscopy time and the number of fluoroscopic images per 3D scan, as well as the BMI of the patients, were recorded.RESULTSThe authors compared 62 intraoperative thoracolumbar 3D scans using the 3D C-arm with a large flat-panel detector and 12 3D scans using the 3D C-arm with a small flat-panel detector. Overall, the 3D C-arm with a large flat-panel detector required more fluoroscopic images per scan (mean 389.0 ± 8.4 vs 117.0 ± 4.6, p < 0.0001), leading to a significantly higher dose area product (mean 1028.6 ± 767.9 vs 457.1 ± 118.9 cGy × cm2, p = 0.0044).CONCLUSIONSThe novel, noninvasive patient tracker mask facilitates intraoperative 3D navigation while eliminating the need for an additional skin incision with detachment of the autochthonous muscles. However, the use of this patient tracker mask requires a larger intraoperative 3D image data set for accurate registration, resulting in a 2.25 times higher radiation exposure to the patient. The use of the patient tracker mask should thus be based on an individual decision, especially taking into considering the radiation exposure and extent of instrumentation.

The impact of statin therapy after surgical or endovascular treatment of cerebral aneurysms

2020 ◽  
Vol 133 (1) ◽  
pp. 182-189
Author(s):  
Tae-Jin Song ◽  
Seung-Hun Oh ◽  
Jinkwon Kim
Keyword(s):  
Statin Therapy ◽  
Coil Embolization ◽  
Primary Outcome ◽  
Cox Regression ◽  
Cerebral Aneurysms ◽  
Time Dependent ◽  
Lipid Lowering ◽  
Surgical Clipping ◽  
The Impact

OBJECTIVECerebral aneurysms represent the most common cause of spontaneous subarachnoid hemorrhage. Statins are lipid-lowering agents that may expert multiple pleiotropic vascular protective effects. The authors hypothesized that statin therapy after coil embolization or surgical clipping of cerebral aneurysms might improve clinical outcomes.METHODSThis was a retrospective cohort study using the National Health Insurance Service–National Sample Cohort Database in Korea. Patients who underwent coil embolization or surgical clipping for cerebral aneurysm between 2002 and 2013 were included. Based on prescription claims, the authors calculated the proportion of days covered (PDC) by statins during follow-up as a marker of statin therapy. The primary outcome was a composite of the development of stroke, myocardial infarction, and all-cause death. Multivariate time-dependent Cox regression analyses were performed.RESULTSA total of 1381 patients who underwent coil embolization (n = 542) or surgical clipping (n = 839) of cerebral aneurysms were included in this study. During the mean (± SD) follow-up period of 3.83 ± 3.35 years, 335 (24.3%) patients experienced the primary outcome. Adjustments were performed for sex, age (as a continuous variable), treatment modality, aneurysm rupture status (ruptured or unruptured aneurysm), hypertension, diabetes mellitus, household income level, and prior history of ischemic stroke or intracerebral hemorrhage as time-independent variables and statin therapy during follow-up as a time-dependent variable. Consistent statin therapy (PDC > 80%) was significantly associated with a lower risk of the primary outcome (adjusted hazard ratio 0.34, 95% CI 0.14–0.85).CONCLUSIONSConsistent statin therapy was significantly associated with better prognosis after coil embolization or surgical clipping of cerebral aneurysms.

scholarly journals Percutaneous Glycerol Rhizotomy for Trigeminal Neuralgia Using a Single-Plane, Flat Panel Detector Angiography System: Technical Note

2016 ◽  
Vol 56 (5) ◽  
pp. 257-263 ◽  
Author(s):  
Hidetaka ARISHIMA ◽  
Satoshi KAWAJIRI ◽  
Hiroshi ARAI ◽  
Yoshifumi HIGASHINO ◽  
Toshiaki KODERA ◽  
...  
Keyword(s):  
Trigeminal Neuralgia ◽  
Technical Note ◽  
Flat Panel ◽  
Single Plane ◽  
Flat Panel Detector

Chest Radiography with a Flat-Panel Detector: Image Quality with Dose Reduction after Copper Filtration

Radiology ◽  
2005 ◽  
Vol 237 (2) ◽  
pp. 691-700 ◽  
Author(s):  
Okka W. Hamer ◽  
Claude B. Sirlin ◽  
Michael Strotzer ◽  
Ingitha Borisch ◽  
Niels Zorger ◽  
...  
Keyword(s):  
Image Quality ◽  
Dose Reduction ◽  
Chest Radiography ◽  
Flat Panel ◽  
Flat Panel Detector
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