Unique Imaging Features Enabling the Prenatal Diagnosis of Developmental Venous Anomalies: A Persistent Echogenic Brain Lesion Drained by a Collecting Vein in Contrast with Normal Brain Parenchyma on MRI

2017 ◽  
Vol 43 (1) ◽  
pp. 53-60 ◽  
Author(s):  
Karina Krajden Haratz ◽  
Alon Peled ◽  
Boris Weizman ◽  
Liat Gindes ◽  
Mordechai Tamarkin ◽  
...  
Keyword(s):  
Prenatal Diagnosis ◽  
Brain Lesion ◽  
Brain Parenchyma ◽  
Normal Brain ◽  
Imaging Features ◽  
Venous Anomalies ◽  
Developmental Venous Anomalies

Resection of insular gliomas: the importance of lenticulostriate artery position

2008 ◽  
Vol 109 (5) ◽  
pp. 825-834 ◽  
Author(s):  
Yaron A. Moshel ◽  
Joshua D.S. Marcus ◽  
Erik C. Parker ◽  
Patrick J. Kelly
Keyword(s):  
Mr Imaging ◽  
Surgical Techniques ◽  
Brain Parenchyma ◽  
Growth Patterns ◽  
Normal Brain ◽  
Imaging Features ◽  
Mr Images ◽  
Presenting Symptoms ◽  
Group I ◽  
Neurological Morbidity

Object The object of this study was to identify characteristic preoperative angiographic and MR imaging features of safely resectable insular gliomas and describe the surgical techniques and postoperative clinical outcomes. Methods Thirty-eight patients with insular gliomas underwent transsylvian resection between 1995 and 2007. Patient demographics, presenting symptoms, pathological findings, and neurological outcomes were retrospectively reviewed. Preoperative MR imaging–defined tumor volumes were superimposed onto the preoperative stereotactic cerebral angiograms to determine whether the insular tumor was confined lateral to (Group I) or extended medially around (Group II) the lenticulostriate arteries (LSAs). Results Twenty-five patients (66%) had tumors situated lateral to the LSAs and 13 (34%) had tumors encasing the LSAs. Insular gliomas situated lateral to the LSAs led to significant medial displacement of these vessels (161 ± 39%). In 20 (80%) of these 25 cases the boundaries between tumor and brain parenchyma were well demarcated on preoperative T2-weighted MR images. In contrast, there was less displacement of the LSAs (130 ± 14%) in patients with insular gliomas extending around the LSAs on angiography. In 11 (85%) of these 13 cases, the tumor boundaries were diffuse on T2-weighted MR images. Postoperative hemiparesis or worsening of a preexisting hemiparesis, secondary to LSA compromise, occurred in 5 patients, all of whom had tumor volumes that extended medial to the LSAs. Gross-total or near-total resection was achieved more frequently in cases in which the insular glioma remained lateral to the LSAs (84 vs 54%). Conclusions Insular gliomas with an MR imaging–defined tumor volume located lateral to the LSAs on stereotactic angiography displace the LSAs medially by expanding the insula, have well-demarcated tumor boundaries on MR images, and can be completely resected with minimal neurological morbidity. In contrast, insular tumors that appear to surround the LSAs do not displace these vessels medially, are poorly demarcated from normal brain parenchyma on MR images, and are associated with higher rates of neurological morbidity if aggressive resection is pursued. Preoperative identification of these anatomical growth patterns can be of value in planning resection.

Radiotherapy for Brain Tumors: Current Practice and Future Directions

2020 ◽  
Vol 16 (3) ◽  
pp. 182-195
Author(s):  
Sarah Baker ◽  
Natalie Logie ◽  
Kim Paulson ◽  
Adele Duimering ◽  
Albert Murtha
Keyword(s):  
Brain Tumors ◽  
Treatment Strategies ◽  
Brain Parenchyma ◽  
Benign Tumors ◽  
Tumor Control ◽  
Normal Brain ◽  
Neurocognitive Deficits ◽  
Close Proximity ◽  
Recent Developments ◽  
High Level

Radiotherapy is an important component of the treatment for primary and metastatic brain tumors. Due to the close proximity of critical structures and normal brain parenchyma, Central Nervous System (CNS) radiotherapy is associated with adverse effects such as neurocognitive deficits, which must be weighed against the benefit of improved tumor control. Advanced radiotherapy technology may help to mitigate toxicity risks, although there is a paucity of high-level evidence to support its use. Recent advances have been made in the treatment for gliomas, meningiomas, benign tumors, and metastases, although outcomes remain poor for many high grade tumors. This review highlights recent developments in CNS radiotherapy, discusses common treatment toxicities, critically reviews advanced radiotherapy technologies, and highlights promising treatment strategies to improve clinical outcomes in the future.

scholarly journals CTNI-03. IMAGING FEATURES OF LEPTOMENINGEAL METASTASES OF NON-SMALL CELL LUNG CANCER: A SINGLE-CENTER REAL-WORLD STUDY

2020 ◽  
Vol 22 (Supplement_2) ◽  
pp. ii41-ii41
Author(s):  
Junjie Zhen ◽  
Lei Wen ◽  
Shaoqun Li ◽  
Mingyao Lai ◽  
Changguo Shan ◽  
...  
Keyword(s):  
Spinal Cord ◽  
Type A ◽  
Brain Parenchyma ◽  
Imaging Features ◽  
Type B ◽  
Type D ◽  
Mri Examination ◽  
Mri Features ◽  
Brain And Spinal Cord ◽  
The Brain

Abstract BACKGROUND According to EANO-ESMO clinical practice guidelines, the MRI findings of LM are divided into 4 types, namely linear enhancement (type A), nodular enhancement (type B), linear combined with nodular enhancement (type C), and sign of hydrocephalus (type D). METHODS The MRI features of brain and spinal cord in patients diagnosed with NSCLC-LM in Guangdong Sanjiu Brain Hospital from 2010 until 2019 were investigated, and then were classified into 4 types. The imaging features were analyzed. RESULTS A total of 80 patients were enrolled in the study. The median age of the patients was 53.5 years old, and the median time from the initial diagnosis to the confirmed diagnosis of LM was 11.6 months. The results of enhanced MRI examination of the brain in 79 cases showed that the number of cases with enhancements of type A, B, C and D were 50 (63.3%), 0, 26 (32.9%) and 3 (3.8%), respectively, and that LM with metastases to the brain parenchyma was found in 42 cases (53.2%). The results of enhanced MRI examination of spinal cord in 59 cases showed that there were only enhancements of type A and C in 40 cases (67.8%) and 3 cases (5.0%), and no enhancement sign in the other 16 cases (27.2%). CONCLUSION MRI examination of brain and spinal cord will improve the detection rate of LM. The MRI features of NSCLC-LM in real world are mainly characterized by the linear enhancements of brain and spinal cord, followed by linear combined with nodular enhancement. The enhancements of type B and type D are rare in clinic. Almost half of the patients have LM and metastases to the brain parenchyma. Therefore, the differentiation of tumor metastases is needed to be paid attention to for the early diagnosis and the formulation of reasonable treatment plans.

Metabolic Changes of Brain Developmental Venous Anomalies on 18F-FDG-PET

2019 ◽  
Vol 26 (4) ◽  
pp. 443-449 ◽  
Author(s):  
Jillian W. Lazor ◽  
J. Eric Schmitt ◽  
Laurie A. Loevner ◽  
S. Ali Nabavizadeh
Keyword(s):  
Fdg Pet ◽  
Metabolic Changes ◽  
Venous Anomalies ◽  
Developmental Venous Anomalies ◽  
18F Fdg

Prenatal diagnosis and prenatal imaging features of fetal monosomy 1p36

2007 ◽  
Vol 27 (9) ◽  
pp. 874-878 ◽  
Author(s):  
D. Lissauer ◽  
S. A. Larkins ◽  
S. Sharif ◽  
L. MacPherson ◽  
C. Rhodes ◽  
...  
Keyword(s):  
Prenatal Diagnosis ◽  
Imaging Features ◽  
Prenatal Imaging

Developmental venous anomalies with arterial supply

2008 ◽  
Vol 108 (6) ◽  
pp. 1139-1141 ◽  
Author(s):  
Stacey Quintero Wolfe ◽  
Roberto C. Heros
Keyword(s):  
Arterial Supply ◽  
Venous Anomalies ◽  
Developmental Venous Anomalies

scholarly journals Microvessel ultrasound of neonatal brain parenchyma: feasibility, reproducibility, and normal imaging features by superb microvascular imaging (SMI)

2018 ◽  
Vol 29 (4) ◽  
pp. 2127-2136 ◽  
Author(s):  
Katharina Goeral ◽  
Azadeh Hojreh ◽  
Gregor Kasprian ◽  
Katrin Klebermass-Schrehof ◽  
Michael Weber ◽  
...  
Keyword(s):  
Brain Parenchyma ◽  
Imaging Features ◽  
Neonatal Brain ◽  
Superb Microvascular Imaging ◽  
Microvascular Imaging
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