scholarly journals Review on Factors Affecting Diagnostic Yield in Stereotactic Biopsy for Brain Lesions: A 5-Year Single-Center Series.

Author(s):  
Bik Liang Lau ◽  
Kugan Vijian ◽  
Donald Ngian San Liew ◽  
Albert Sii Hieng Wong

Abstract Objective: To determine the factors that are associated with the diagnostic yield of stereotactic brain biopsy. Materials and Methods: A retrospective analysis was performed on 50 consecutive patients who underwent stereotactic brain biopsies in a single institute from 2014 to 2019. Variables including age, gender, lesion topography and characteristics, biopsy methods and surgeon’s experience were analyzed along with diagnostic rate. Results: This study included 31 male and 19 female patients with a mean age of 48.4 (range: 1-76). Of these, 25 underwent frameless brain-suite stereotactic biopsies, 15 were frameless portable Brain-lab® stereotactic biopsies and 10 were frame-based CRW® stereotactic biopsies. There was no statistical difference between the diagnostic yield of the three methods. The diagnostic yield in our series was 76%. Age, gender and biopsy methods had no impact on diagnostic yield. Periventricular and pineal lesion biopsies were significantly associated with negative diagnostic yield (p=0.01) whereas larger lesions were significantly associated with a positive yield (p=0.01) with the mean volume of lesions in the positive yield group (13.6cc) being higher than the negative yield group (7cc). The diagnostic yields seen between senior and junior neurosurgeons in the biopsy procedure were 95% and 63% respectively (p=0.02). Conclusion: Anatomical location of the lesion, volume of the lesion and experience of the surgeon have significant impacts on the diagnostic yield in stereotactic brain biopsy. There was no statistical difference between the diagnostic yield of the three methods, age, gender and depth of lesion.

2006 ◽  
Vol 104 (2) ◽  
pp. 233-237 ◽  
Author(s):  
Graeme F. Woodworth ◽  
Matthew J. McGirt ◽  
Amer Samdani ◽  
Ira Garonzik ◽  
Alessandro Olivi ◽  
...  

Object The gold standard for stereotactic brain biopsy target localization has been frame-based stereotaxy. Recently, frameless stereotactic techniques have become increasingly utilized. Few authors have evaluated this procedure, analyzed preoperative predictors of diagnostic yield, or explored the differences in diagnostic yield and morbidity rate between the frameless and frame-based techniques. Methods A consecutive series of 110 frameless and 160 frame-based image-guided stereotactic biopsy procedures was reviewed. Associated variables for both techniques were reviewed and compared. All stereotactic biopsy procedures were included in a risk factor analysis of nondiagnostic biopsy sampling. Frameless stereotaxy led to a diagnostic yield of 89%, with a total permanent morbidity rate of 6% and a mortality rate of 1%. Larger lesions were fivefold more likely to yield diagnostic tissues. Deep-seated lesions were 2.7-fold less likely to yield diagnostic tissues compared with cortical lesions. Frameless compared with frame-based stereotactic biopsy procedures showed no significant differences in diagnostic yield or transient or permanent morbidity. For cortical lesions, more than one needle trajectory was required more frequently to obtain diagnostic tissues with frame-based as opposed to frameless stereotaxy, although this factor was not associated with morbidity. Conclusions With regard to diagnostic yield and complication rate, the frameless stereotactic biopsy procedure was found to be comparable to or better than the frame-based method. Smaller and deep-seated lesions together were risk factors for a nondiagnostic tissue yield. Frameless stereotaxy may represent a more efficient means of obtaining biopsy specimens of cortical lesions but is otherwise similar to the frame-based technique.


2019 ◽  
Vol 10 (01) ◽  
pp. 78-84 ◽  
Author(s):  
Chin Taweesomboonyat ◽  
Thara Tunthanathip ◽  
Sakchai Sae-Heng ◽  
Thakul Oearsakul

Background: With the advancement of neuronavigation technologies, frameless stereotactic brain biopsy has been developed. Previous studies proved that frameless stereotactic brain biopsy was as effective and safe as frame-based stereotactic brain biopsy. The authors aimed to find the factors associated with diagnostic yield and complication rate of frameless intracranial biopsy. Materials and Methods: Frameless stereotactic brain biopsy procedures, between March 2009 and April 2017, were retrospectively reviewed from medical records including imaging studies. Using logistic regression analysis, various factors were analyzed for association with diagnostic yield and postoperative complications. Results: Eighty-nine frameless stereotactic brain biopsy procedures were performed on 85 patients. The most common pathology was primary central nervous system lymphoma (43.8%), followed by low-grade glioma (15.7%), and high-grade glioma (15%), respectively. The diagnostic yield was 87.6%. Postoperative intracerebral hematoma occurred in 19% of cases; however, it was symptomatic in only one case. The size of the lesion was associated with both diagnostic yield and postoperative intracerebral hematoma complication. Lesions, larger than 3 cm in diameter, were associated with a higher rate of positive biopsy result (P = 0.01). Lesion 3 cm or smaller than 3 cm in diameter, and intraoperative bleeding associated with a higher percentage of postoperative intracerebral hematoma complications (P = 0.01). Conclusions: For frameless stereotactic brain biopsy, the size of the lesion is the essential factor determining diagnostic yield and postoperative intracerebral hematoma complication.


Author(s):  
PJ Gariscsak ◽  
C Gui ◽  
JC Lau ◽  
JF Megyesi

Background: Historically, frame-based stereotactic brain biopsy (SBB) has played an important role in the diagnosis of intracranial lesions. We performed a single centre analysis of the outcomes and efficacy of SBB at the London Health Sciences Centre (LHSC). Methods: We performed a retrospective chart review of frame-based SBB from 2006 to 2017 at the LHSC. Intra-operative and final pathology reports were analyzed for biopsy diagnosis and the diagnosis was compared with pre-operative neuroimaging reports for correlation. SBB-associated morbidity and mortality were investigated using chart review and post-operative neuroimaging. Results: 173 consecutive patients were identified. The overall morbidity rate was 8.7% (15 cases) and mortality rate was 0.6% (1 case). Final biopsy diagnostic accuracy was 96%, intra-operative diagnostic accuracy was 94% and pre-operative imaging diagnostic accuracy was 65%. Elevated partial thromboplastin time and the presence of hemorrhage on post-operative CT were associated with neurological morbidity and mortality. The need to obtain three or greater samples the time of biopsy was associated with non-diagnostic biopsy. Conclusions: At the LHSC, SBB is a relatively safe and effective surgical procedure with high diagnostic yield and relatively low risk of complications. Intra-operative pathology has a high efficacy in determining diagnosis when compared to final pathology.


2019 ◽  
Vol 6 (6) ◽  
pp. 415-423 ◽  
Author(s):  
Alexis A Morell ◽  
Ashish H Shah ◽  
Claudio Cavallo ◽  
Daniel G Eichberg ◽  
Christopher A Sarkiss ◽  
...  

Abstract Background Because less-invasive techniques can obviate the need for brain biopsy in the diagnosis of primary central nervous system lymphoma (PCNSL), it is common practice to wait for a thorough initial work-up, which may delay treatment. We conducted a systematic review and reviewed our own series of patients to define the role of LP and early brain biopsy in the diagnosis of PCNSL. Methods Our study was divided into 2 main sections: 1) systematic review assessing the sensitivity of cerebrospinal fluid (CSF) analysis on the diagnosis of PCNSL, and 2) a retrospective, single-center patient series assessing the diagnostic accuracy and safety of early biopsy in immunocompetent PCNSL patients treated at our institution from 2012 to 2018. Results Our systematic review identified 1481 patients with PCNSL. A preoperative LP obviated surgery in 7.4% of cases. Brain biopsy was the preferred method of diagnosis in 95% of patients followed by CSF (3.1%). In our institutional series, brain biopsy was diagnostic in 92.3% of cases (24/26) with 2 cases that required a second procedure for diagnosis. Perioperative morbidity was noted in 7.6% of cases (n = 2) due to hemorrhages after stereotactic brain biopsy that improved at follow-up. Conclusions The diagnostic yield of CSF analyses for PCNSL in immunocompetent patients remains exceedingly low. Our institutional series demonstrates that early biopsy for PCNSL is safe and accurate, and may avert protracted work-ups. We conclude that performing an early brain biopsy in a suspected case of PCNSL is a valid, safe option to minimize diagnostic delay.


2006 ◽  
Vol 23 (2) ◽  
pp. 71-75 ◽  
Author(s):  
Deepali Jain ◽  
Mehar Chand Sharma ◽  
Chitra Sarkar ◽  
Prabal Deb ◽  
Deepak Gupta ◽  
...  

Neurosurgery ◽  
2008 ◽  
Vol 62 (4) ◽  
pp. 833-838 ◽  
Author(s):  
Heinke Pulhorn ◽  
D. Gavin Quigley ◽  
Jark J.D. Bosma ◽  
Ramez Kirollos ◽  
Daniel G. du Plessis ◽  
...  

Abstract OBJECTIVE We sought to assess the diagnostic yield, complication rates, and therapeutic impact of open brain biopsy and serial stereotactic brain biopsy in the management of patients with nonneoplastic neurological conditions in which conventional investigations did not yield a definitive diagnosis. METHODS A retrospective case note analysis was undertaken in consecutive patients undergoing brain biopsy at The Walton Centre for Neurology and Neurosurgery during a 15-year period. The diagnostic yield, prebiopsy diagnostic category, biopsy technique (open versus stereotactic), complication rates, and impact on clinical management were assessed. Biopsies were grouped into one of five categories: diagnostic, suggestive, nonspecific, normal, or nondiagnostic. RESULTS Thirty-nine patients underwent biopsy. The diagnostic yield (combined diagnostic and suggestive) of targeted serial stereotactic biopsy was 64% (seven of 11 patients); in the open brain biopsy group, the diagnostic yield was 46% (13 of 28 patients). The prebiopsy diagnosis was confirmed in 100% (three of three patients) stereotactic biopsy patients and 75% (nine of 12 patients) of open biopsy patients. Two patients (7%) in the open biopsy group had short-term complications. The clinical impact was similar in both groups: nine of 28 (32%) open biopsy patients and four of 11 (36%) stereotactic biopsy patients. CONCLUSION Despite the low clinical impact, diagnostic brain biopsy should be considered in patients with nonneoplastic undiagnosed neurological disorders. Patients with neuroimaging abnormalities should preferentially undergo targeted biopsy.


2019 ◽  
Vol 186 ◽  
pp. 105544 ◽  
Author(s):  
Bertrand Mathon ◽  
Aymeric Amelot ◽  
Karima Mokhtari ◽  
Franck Bielle

2011 ◽  
Vol 68 (suppl_1) ◽  
pp. ons217-ons224 ◽  
Author(s):  
John Quinn ◽  
David Spiro ◽  
Michael Schulder

Abstract BACKGROUND: Techniques for stereotactic brain biopsy have evolved in parallel with the imaging modalities used to visualize the brain. OBJECTIVE: To describe our technique for performing stereotactic brain biopsy using a compact, low-field, intraoperative magnetic resonance imager (iMRI). METHODS: Thirty-three patients underwent stereotactic brain biopsies with the PoleStar N-20 iMRI system (Medtronic Navigation, Louisville, Colorado). Preoperative iMRI scans were obtained for biopsy target identification and trajectory planning. A skull-mounted device (Navigus, Medtronic Navigation) was used to guide an MRI-compatible cannula to the target. An intraoperative image was acquired to confirm accurate cannula placement within the lesion. Serial images were obtained to track cannula movement and to rule out hemorrhage. Frozen sections were obtained in all but 1 patient with a brain abscess. RESULTS: Diagnostic tissue was obtained in 32 of 33 patients. In all cases, imaging demonstrated cannula placement within the lesion. Histological diagnoses included 22 primary brain tumors and 10 nonneoplastic lesions. In 61% of the cases, initial trajectory was corrected on the basis of the intraoperative scans. In 1 patient, biopsy was nondiagnostic despite accurate cannula placement. No patient suffered a clinically or radiographically significant hemorrhage during or after surgery. There were no intraoperative complications. CONCLUSION: Stereotactic biopsy with a low-field iMRI is an accurate way to obtain specimens with a high diagnostic yield. This accuracy, combined with the acceptable additional procedural time, may obviate the need for frozen section. The ability to correct biopsy cannula placement during surgery eliminates the chance of misdiagnosis because of faulty targeting, as well as the risks associated with inconclusive frozen sections and “blind” replacement of the cannula.


Neurosurgery ◽  
1984 ◽  
Vol 15 (1) ◽  
pp. 82-85 ◽  
Author(s):  
Walter J. Levy ◽  
John J. Oro

Abstract Needle brain biopsy and aspiration is an important technique for the diagnosis of tumors and for the evacuation of fluid collections. Current biopsy methods use a straight needle, which has the disadvantage of requiring multiple passes through the overlying brain to obtain multiple biopsies. Furthermore, a straight needle does not give optimal samples of tumor for diagnosis because the needle passes through the viable rim of the tumor instead of along it. We are reporting a curved plastic biopsy needle suitable for computed tomography-guided biopsy. It remains inside an outer guide catheter that holds it straight until it reaches the edge of the tissue to be biopsied. At this point, the needle is advanced beyond the guide catheter and obtains the biopsy sample by passing around the edge of a tumor. This can in principle produce an improvement in diagnostic yield. Furthermore, multiple biopsies of the tumor from a single guide catheter position are possible. The surgeon rotates the curved needle within its guide catheter to redirect it before the needle emerges. and a different biopsy is then obtained without reinsertion. This avoids multiple punctures of the overlying uninvolved tissue. We are reporting the technique and beginning an evaluation of it.


2020 ◽  
Vol 11 ◽  
pp. 218
Author(s):  
Monica Lara-Almunia ◽  
Javier Hernandez-Vicente

Background: Stereotactic biopsy is a well-established procedure in neurosurgery. Our objective is to define the clinical, radiological, and technical factors that can condition the emergence of postbiopsy symptomatic intracranial hemorrhage. Based on our findings, we suggest recommendations to improve its usual clinical practice. Methods: We made a retrospective study of 429 cases with stereotactic biopsies performed in the past 37 years. The surgical procedure-was adapted in terms of the stereotactic frames (Todd-Wells, CRW, Leksell), neuroimaging tests, and planning programs available in the hospital. Fifty-three variables were analyzed for each patient (SPSS.23). Results: The diagnostic yield was 90.7%. Forty-one patients (9.5%) suffered a symptomatic postbiopsy hemorrhage; only 17 (3.9%) had permanent morbidity. The mortality was 0.93% (n = 4). A postsurgical CT scan was requested only in 99 patients (23%) of our series. Lesion mass effect, cystic component, contrast enhancement, histological nature, or number of targets were not associated with a greater risk of symptomatic postbiopsy hemorrhage (P > 0.05). On the other hand, the biopsies made by nonexpert neurosurgeons (P = 0.01) or under general anesthesia (P = 0.02) resulted in a greater risk of symptomatic postbiopsy hemorrhage. Anesthetic type was the clearest predictive factor of bleeding with this technique (OR: 0.24). Conclusion: Stereotactic biopsy is a very valuable tool. To optimize its safety and minimize the risk of intracranial bleeding, it requires both a knowledge of stereotactic techniques and very careful surgical planning. While the patient’s stay in intensive vigilance units after the procedure is a useful strategy, the request for control CT scans should be conditioned by the clinical evolution of each patient.


Sign in / Sign up

Export Citation Format

Share Document