CT guided functional stereotaxic surgery

1987 ◽  
Vol 87 (1-2) ◽  
pp. 8-13 ◽  
Author(s):  
J. D. S. McKean ◽  
P. B. R. Allen ◽  
L. J. Filipow ◽  
J. D. R. Miller
1987 ◽  
Vol 66 (2) ◽  
pp. 186-191 ◽  
Author(s):  
Walter A. Hall ◽  
L. Dade Lunsford

✓ Since computerized tomography (CT) scanning became available at the University Health Center of Pittsburgh in July, 1975, 17 patients have undergone removal of colloid cysts of the third ventricle by transfrontal, transcallosal, or stereotaxic surgery. All patients presented with symptoms and signs of increased intracranial pressure; CT scanning proved to be the best neurodiagnostic test to define the colloid cysts. Since the development of CT-guided stereotaxic surgery, the authors have preferentially performed stereotaxic aspiration in seven patients; three of these subsequently required craniotomies to remove residual cysts producing persistent symptoms. The viscosity of the intracystic colloid material and/or displacement of the cyst away from the aspiration needle were reasons for unsuccessful aspiration; the CT appearance did not correlate with the ability to aspirate the lesion by the stereotaxic technique. Postoperative patency of the ventricular system was documented by intraoperative CT ventriculography performed during stereotaxic surgery. Removal of the cyst wall was not necessary. Because of the low associated morbidity rate, percutaneous stereotaxic aspiration is recommended as the initial treatment of choice for colloid cysts of the third ventricle. If stereotaxic aspiration fails and symptoms persist, craniotomy should be performed.


1988 ◽  
Vol 69 (2) ◽  
pp. 188-194 ◽  
Author(s):  
Gregg N. Dyste ◽  
Patrick W. Hitchon ◽  
Arnold H. Menezes ◽  
John C. VanGilder ◽  
George M. Greene

✓ Controversy exists regarding the optimal treatment for patients with multiple brain abscesses. These lesions are often small and located deep in the brain and close to vital structures, making surgery difficult. With this in mind the authors review their experience in treating multiple abscesses using computerized tomography (CT)-guided stereotaxic aspiration. From 1983 to 1985, 15 patients were treated for multiple brain abscesses, of whom eight underwent stereotaxic aspiration. There were a total of 28 abscesses in these eight patients: 11 abscesses were aspirated and two excised using CT-guided techniques. Most were cortical in location, although there were 12 in the deep white matter, one in the thalamus, and two in the caudate nucleus. All patients received a total of 6 weeks of antibiotic therapy. Follow-up CT showed resolution of the abscesses in all patients. Currently, four are neurologically normal, one has a mild hemiparesis, one has a well-controlled seizure disorder, and one requires supportive care. A single death occurred 5 weeks postoperatively of unrelated causes. Location, size, and age of an abscess all have bearing upon the response to management and outcome of the patient. Stereotaxic surgery is a procedure with minimal morbidity and mortality. Stereotaxic aspiration should be considered in patients with small, multiple, or deep-seated abscesses, in those who are poor operative candidates, and in those who have failed prior therapy.


Nosotchu ◽  
2000 ◽  
Vol 22 (4) ◽  
pp. 595-599
Author(s):  
Shodo Fujioka ◽  
Masaji Murakami ◽  
Ukitaka Ushio

2006 ◽  
Vol 175 (4S) ◽  
pp. 359-359
Author(s):  
Sompol Permpongkoso ◽  
Aaron Sulman ◽  
Stephen B. Solomon ◽  
GaryX Gong ◽  
Louis R. Kavoussi

Author(s):  
M. Stienen ◽  
K. Brändle ◽  
A. Neff ◽  
G. Hildebrandt ◽  
H. Joswig
Keyword(s):  

Author(s):  
Bojan Jelača ◽  
Petar Vuleković ◽  
Vladimir Papić ◽  
Mladen Karan ◽  
Tomislav Cigić ◽  
...  

2004 ◽  
Vol 43 (05) ◽  
pp. 143-149 ◽  
Author(s):  
N. Hamscho ◽  
C. Menzel ◽  
L. Neuss ◽  
A. F. Kovács ◽  
F. Grünwald ◽  
...  

Summary:Aim: For the evaluation of the diagnostic potential of dual time point FDG positron emission tomography (PET) in patients with suspicious focal abdominal up-take, dual time point PET imaging was compared with clinical findings. Patients, methods: In a prospective study, 56 patients exhibiting a solitary suspicious, intense abdominal FDG uptake, underwent dual time point PET imaging for staging or restaging of different malignant tumors, maximal standardized uptake value (SUVmax) measurements included. The first acquisition was started 64.8 ± 19.5, the second 211.3 ± 52.5 min after FDG injection. The final diagnosis based on CT or MRT imaging and a follow-up period of 12.6 ± 2.8 months. Additionally, colonoscopy was done in 6 patients. In another 6 patients histopathology was obtained from CT guided biopsy. Results: Malignant focal abdominal lesions with a SUVmax <2.5 (n = 4) showed an uptake increase of ≥30%. In the remaining malignant cases with an uptake of ≥2.5 (n = 11), up-take increased in 64% and decreased in 36%. Malignant lesions showing FDG uptake decrease (n = 4) had an initial SUVmax value ≥2.5 and remained with a SUVmax ≥2.5 in the second imaging. In benign lesions with an initial SUVmax ≥2.5 (n = 31), the uptake increased in 17 patients (55%) and decreased in 14 patients (45%). All lesions which changed configuration (33%) were confirmed as benign (n = 5). Conclusion: Using dual time point PET abdominal lesions show a very hetergenous uptake pattern regardless of their dignity. Malignancy can only be reliably excluded in lesions which change their configuration and in lesions with an initial SUVmax value <2.5 combined with an SUV decrease in the delayed imaging. Particularly abdominal lesions which show an initial SUVmax ≥2.5 combined with a SUV increase in the delayed imaging are suspicious for malignancy and need further clarification.


1988 ◽  
Vol 24 (4) ◽  
pp. 495
Author(s):  
C S Lee ◽  
S K Baik ◽  
J K Lee ◽  
H Y Choi ◽  
B K Kim
Keyword(s):  

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