scholarly journals Dynamic Enhancement Features of Cavernous Sinus Cavernous Hemangiomas on Conventional Contrast-Enhanced MR Imaging

2007 ◽  
Vol 29 (3) ◽  
pp. 577-581 ◽  
Author(s):  
Y. Jinhu ◽  
D. Jianping ◽  
L. Xin ◽  
Z. Yuanli
Keyword(s):  
Mr Imaging ◽  
Cavernous Sinus ◽  
Contrast Enhanced ◽  
Cavernous Hemangiomas ◽  
Dynamic Enhancement

Vascular Mass Lesions and Hypervascular Tumors in the Head and Neck

1995 ◽  
Vol 36 (2) ◽  
pp. 136-141 ◽  
Author(s):  
F. Aspestrand ◽  
A. Kolbenstvedt
Keyword(s):  
Mr Imaging ◽  
Head And Neck ◽  
Neck Region ◽  
Head And Neck Region ◽  
Contrast Enhanced Ct ◽  
Contrast Enhanced ◽  
Enhanced Ct ◽  
Cavernous Hemangiomas ◽  
Hypervascular Tumors ◽  
Mass Lesions

A retrospective analysis of the findings at contrast-enhanced CT, MR imaging and angiography in 24 patients with vascular mass lesions and 11 patients with hypervascular tumors in the head and neck region was undertaken. We attempted to find criteria at CT and MR imaging that could aid in differentiating between different lesion categories. Parameters such as contrast enhancement at CT, signal intensities at MR imaging, phleboliths and peritumoral hypervascularity were correlated to clinical presentation, biopsies and angiography. MR imaging was superior to CT and far better than angiography in delineating cavernous hemangiomas. Contrast-enhanced CT may better differentiate between cavernous and capillary hemangiomas than MR. MR imaging clearly differentiated cavernous hemangiomas from hypervascular tumors, but was, like CT, inadequate for distinguishing between capillary hemangiomas and hypervascular tumors. Lymphangiomas and cavernous hemangiomas had similar appearances at CT and MR imaging.

Dynamic contrast – enhanced MR imaging of the stimulated pituitary gland

2004 ◽  
Vol 112 (S 1) ◽  
Author(s):  
C Maier ◽  
M Riedl ◽  
M Clodi ◽  
C Bieglmayer ◽  
V Mlynarik ◽  
...  
Keyword(s):  
Mr Imaging ◽  
Pituitary Gland ◽  
Dynamic Contrast Enhanced ◽  
Contrast Enhanced

Contrast enhanced MR imaging of postoperative medulloblastoma in childhood: Emphasis on meningeal enhancement

1993 ◽  
Vol 29 (2) ◽  
pp. 319
Author(s):  
Choong Gon Choi ◽  
In One Kim ◽  
Woo Sun Kim ◽  
Ho Chul Kim ◽  
Kyung Mo Yeon
Keyword(s):  
Mr Imaging ◽  
Meningeal Enhancement ◽  
Contrast Enhanced

MR Imaging of Double-Contrast Enhanced Porcine Myocardial Infarction

1995 ◽  
Vol 36 (4) ◽  
pp. 346-352 ◽  
Author(s):  
Stefan Nilsson ◽  
Mats Wikstrom ◽  
Anders Ericsson ◽  
Gerhard Wikstrom ◽  
Anders Waldenstrom ◽  
...  
Keyword(s):  
Myocardial Infarction ◽  
Mr Imaging ◽  
Double Contrast ◽  
Contrast Enhanced

Gamma knife radiosurgery in the management of cavernous sinus meningiomas

2000 ◽  
Vol 93 (supplement_3) ◽  
pp. 68-73 ◽  
Author(s):  
Pierre-Hugues Roche ◽  
Jean Régis ◽  
Henry Dufour ◽  
Henri-Dominique Fournier ◽  
Christine Delsanti ◽  
...  
Keyword(s):  
Mr Imaging ◽  
Tumor Growth ◽  
Gamma Knife ◽  
Cavernous Sinus ◽  
Gamma Knife Radiosurgery ◽  
Surgical Removal ◽  
Content Type ◽  
Cavernous Sinus Meningioma ◽  
The Mean ◽  
Fine Print

Object. The authors sought to assess the functional tolerance and tumor control rate of cavernous sinus meningiomas treated by gamma knife radiosurgery (GKS). Methods. Between July 1992 and October 1998, 92 patients harboring benign cavernous sinus meningiomas underwent GKS. The present study is concerned with the first 80 consecutive patients (63 women and 17 men). Gamma knife radiosurgery was performed as an alternative to surgical removal in 50 cases and as an adjuvant to microsurgery in 30 cases. The mean patient age was 49 years (range 6–71 years). The mean tumor volume was 5.8 cm3 (range 0.9–18.6 cm3). On magnetic resonance (MR) imaging the tumor was confined in 66 cases and extensive in 14 cases. The mean prescription dose was 28 Gy (range 12–50 Gy), delivered with an average of eight isocenters (range two–18). The median peripheral isodose was 50% (range 30–70%). Patients were evaluated at 6 months, and at 1, 2, 3, 5, and 7 years after GKS. The median follow-up period was 30.5 months (range 12–79 months). Tumor stabilization after GKS was noted in 51 patients, tumor shrinkage in 25 patients, and enlargement in four patients requiring surgical removal in two cases. The 5-year actuarial progression-free survival was 92.8%. No new oculomotor deficit was observed. Among the 54 patients with oculomotor nerve deficits, 15 improved, eight recovered, and one worsened. Among the 13 patients with trigeminal neuralgia, one worsened (contemporary of tumor growing), five remained unchanged, four improved, and three recovered. In a patient with a remnant surrounding the optic nerve and preoperative low vision (3/10) the decision was to treat the lesion and deliberately sacrifice the residual visual acuity. Only one transient unexpected optic neuropathy has been observed. One case of delayed intracavernous carotid artery occlusion occurred 3 months after GKS, without permanent deficit. Another patient presented with partial complex seizures 18 months after GKS. All cases of tumor growth and neurological deficits observed after GKS occurred before the use of GammaPlan. Since the initiation of systematic use of stereotactic MR imaging and computer-assisted modern dose planning, no more side effects or cases of tumor growth have occurred. Conclusions. Gamma knife radiosurgery was found to be an effective low morbidity—related tool for the treatment of cavernous sinus meningioma. In a significant number of patients, oculomotor functional restoration was observed. The treatment appears to be an alternative to surgical removal of confined enclosed cavernous sinus meningioma and should be proposed as an adjuvant to surgery in case of extensive meningiomas.

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