363 A follow-up study of computed tomography in the Japanese elderly volunteers : Clinical indices of dementia and death

1996 ◽  
Vol 17 (4) ◽  
pp. S91
Author(s):  
H. Kasahara ◽  
H. Yamada ◽  
M. Tanno ◽  
M. Kobayashi ◽  
A. Karasawa ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Follow Up Study ◽  
Japanese Elderly ◽  
Clinical Indices

scholarly journals Cavernous Hemangioma of the Gallbladder Masquerading as a Carcinoma

2019 ◽  
Vol 13 (1) ◽  
pp. 219-224
Author(s):  
Naotake Funamizu ◽  
Yukio Nakabayashi
Keyword(s):  
Computed Tomography ◽  
Cavernous Hemangioma ◽  
Benign Tumors ◽  
Low Density ◽  
Vascular Endothelial ◽  
Postoperative Course ◽  
Follow Up Study ◽  
Abdominal Computed Tomography ◽  
Extended Cholecystectomy

Cavernous hemangioma arising from the gallbladder is extremely rare. Here, we report a cavernous hemangioma of the gallbladder masquerading as a carcinoma. A 75-year-old man was referred to our institution for a follow-up study after gastrectomy. Abdominal computed tomography revealed that the gallbladder was filled with a low-density mass with calcification of the wall. The patient underwent extended cholecystectomy. Histologically, the tumor consisted of vascular endothelial cellular elements and hematomas. The postoperative course was uneventful without complications. Presently, only 7 cases of cavernous hemangioma of the gallbladder have been previously reported. This case serves as an important reminder to consider benign tumors including cavernous hemangioma when investigating all possible causes of a gallbladder tumor.

Study of Conformability of the New Leo Plus Stent to a Curved Vascular Model Using Flat-Panel Detector Computed Tomography (Dynact)

2009 ◽  
Vol 64 (suppl_1) ◽  
pp. ONS130-ONS134 ◽  
Author(s):  
Miguel Valdivia y Alvarado ◽  
Nilou Ebrahimi ◽  
Goetz Benndorf
Keyword(s):  
Computed Tomography ◽  
Intracranial Aneurysm ◽  
Cylindrical Shape ◽  
Flat Panel ◽  
Flat Detector ◽  
Aneurysm Neck ◽  
Follow Up Study ◽  
Vascular Model ◽  
Curved Vessels

Abstract Objective: In a previous study, we assessed the conformability limitations of self-expandable stents to a curved vascular model. The LEO stent (Balt Extrusion, Montmorency, France), one of the current self-expandable models available for intracranial aneurysm stenting, displayed 2 adverse mechanics: flattening of the stent midsection and inward crimping of the proximal and distal ends. We present a follow-up study in which we evaluate the conformability to curved vessels of a second-generation stent, LEO PLUS. Methods: A 3.5- × 25-mm LEO PLUS stent was deployed inside a 3-mm × 10-cm poly-tetrafluoroethylene tube (vascular model) with a simulated 5-mm aneurysm neck at its midsection. The polytetrafluoroethylene tube was then placed in a polystyrene block (styrofoam; Dow Chemical Co., Midland, MI) and bent at different angles ranging from 0 to 150 degrees. For each angle, a rotational radiogram was performed using a C-arm angiographic system with a 30- × 43-cm Csl/amorphous silicon flat detector operated with 23-second rotations, 0.80-degree increments, 1 66 projections, and a 2480 × 1920 matrix (2K matrix). Results: The LEO PLUS stent showed symmetric deployment at all tested degrees of curvature, without flattening or kinking. The stent retained its round cylindrical shape at all curvatures without inward crimping of its proximal and distal ends. Conclusion: The previously documented adverse mechanics of the LEO stent were not observed with the new LEO PLUS stent. This suggests better conformability to curved or tortuous vasculature owing to design improvements.

Longitudinal Follow-up Study of Smoking-induced Lung Density Changes by High-resolution Computed Tomography

2000 ◽  
Vol 161 (4) ◽  
pp. 1264-1273 ◽  
Author(s):  
KENZO SOEJIMA ◽  
KAZUHIRO YAMAGUCHI ◽  
EIICHI KOHDA ◽  
KEI TAKESHITA ◽  
YOKO ITO ◽  
...  
Keyword(s):  
Computed Tomography ◽  
High Resolution ◽  
High Resolution Computed Tomography ◽  
Lung Density ◽  
Follow Up Study
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