Initial experience with SPECT of the brain using 99mTc-hexamethyl-propyleneamine oxime (99mTc-HM-PAO)

1987 ◽  
Vol 12 (11) ◽  
pp. 557-559 ◽  
Author(s):  
Gianluigi Spreafico ◽  
Fabio Cammelli ◽  
Genziana Gadola ◽  
Giancarlo Nicola ◽  
Franco Zancaner ◽  
...  
Keyword(s):  
Initial Experience ◽  
The Brain

Double Inversion Recovery Imaging of the Brain: Initial Experience and Comparison with Fluid Attenuated Inversion Recovery Imaging

1998 ◽  
Vol 16 (2) ◽  
pp. 127-135 ◽  
Author(s):  
Karl Turetschek ◽  
Patrick Wunderbaldinger ◽  
Alexander A. Bankier ◽  
Thomas Zontsich ◽  
Oswald Graf ◽  
...  
Keyword(s):  
Inversion Recovery ◽  
Double Inversion Recovery ◽  
Initial Experience ◽  
Inversion Recovery Imaging ◽  
Fluid Attenuated Inversion Recovery ◽  
The Brain

INITIAL EXPERIENCE WITH SPECT (SINGLE-PHOTON COMPUTERIZED TOMOGRAPHY) OK THE BRAIN USING N-ISOPROPYL 1–123 P-IODOAMPHETAMINE

1982 ◽  
Vol 6 (5) ◽  
pp. 1042 ◽  
Author(s):  
T. C. Hill ◽  
B. I. Holman ◽  
R. I. Ovett ◽  
D. H. O Leary ◽  
D. Front ◽  
...  
Keyword(s):  
Computerized Tomography ◽  
Single Photon ◽  
Initial Experience ◽  
The Brain

Stress and Sleep Interact to Selectively Consolidate and Transform Negative Emotional Memories

2020 ◽  
pp. 163-188
Author(s):  
Jessica D. Payne
Keyword(s):  
Memory Consolidation ◽  
Stress Hormones ◽  
Emotional Memory ◽  
Initial Experience ◽  
Depression And Anxiety ◽  
Emotional Experiences ◽  
Emotional Memories ◽  
Emotional Aspects ◽  
Clinical Conditions ◽  
The Brain

Memory consolidation processes can be highly selective. For example, negative emotional aspects of events tend to be consolidated more readily than other, more neutral, aspects. This chapter discusses evidence that the sleeping brain provides an ideal environment for memory consolidation, and that active, as opposed to passive, sleep-based consolidation processes are particularly important in explaining why emotional memories are retained so well. I also review evidence that elevated levels of stress hormones (cortisol, norepinephrine), particularly during the time of the initial experience, support downstream emotional memory consolidation. The chapter then proposes a working model that describes why arousal and stress at encoding may set the stage for sleep to etch emotional memories in the brain on a long-lasting basis and presents recent data to support this model. However, in addition to promoting the consolidation and stabilization of emotional memories, evidence suggests that sleep and stress also transform memories—in both adaptive and maladaptive ways. Memory for negative emotional experiences, while adaptive in general, can also contribute to the etiology and perpetuation of clinical conditions such as depression and anxiety. Thus, I argues that it is possible to have “too much of a good thing” and suggests ways that the transformative nature of stress and sleep might be used to restructure maladaptive memories in the clinic.

Hybrid of opposite-contrast MRA of the brain by combining time-of-flight and black-blood sequences: Initial experience in major trunk stenoocclusive diseases

2009 ◽  
Vol 31 (1) ◽  
pp. 56-60 ◽  
Author(s):  
Kazuhiro Tsuchiya ◽  
Kuninori Kobayashi ◽  
Toshiaki Nitatori ◽  
Tokunori Kimura ◽  
Masato Ikedo ◽  
...  
Keyword(s):  
Time Of Flight ◽  
Black Blood ◽  
Initial Experience ◽  
Opposite Contrast ◽  
The Brain

Cerebral palsy: initial experience with Tc-99m HMPAO SPECT of the brain.

Radiology ◽  
1990 ◽  
Vol 175 (1) ◽  
pp. 111-116 ◽  
Author(s):  
R Denays ◽  
M Tondeur ◽  
V Toppet ◽  
H Ham ◽  
A Piepsz ◽  
...  
Keyword(s):  
Cerebral Palsy ◽  
Initial Experience ◽  
Hmpao Spect ◽  
The Brain

Endovascular Balloon-Assisted Embolization of Intracranial and Cervical Arteriovenous Malformations Using Dual-Lumen Coaxial Balloon Microcatheters and Onyx

2013 ◽  
Vol 73 (2) ◽  
pp. ons238-ons243 ◽  
Author(s):  
Bharathi D. Jagadeesan ◽  
Mikayel Grigoryan ◽  
Ameer E. Hassan ◽  
Andrew W. Grande ◽  
Ramachandra P. Tummala
Keyword(s):  
Arteriovenous Malformations ◽  
Dural Arteriovenous Fistula ◽  
Transarterial Embolization ◽  
Balloon Catheter ◽  
Initial Experience ◽  
Feeding Artery ◽  
Ethylene Vinyl Alcohol ◽  
Catheter Navigation ◽  
Brain Avms ◽  
The Brain

Abstract BACKGROUND: Ethylene vinyl alcohol copolymer (Onyx) is widely used for the embolization of arteriovenous malformations (AVMs) of the brain, head, and neck. Balloon-assisted Onyx embolization may provide additional unique advantages in the treatment of AVMs in comparison with traditional catheter-based techniques. OBJECTIVE: To report our initial experience in performing balloon-assisted AVM embolization for brain and neck AVMs with the use of the new Scepter-C and Scepter-XC coaxial dual-lumen balloon microcatheters. METHODS: Balloon-assisted transarterial embolization was performed in a series of 7 patients with AVMs (4 with brain AVMs, 1 with a dural arteriovenous fistula, and 2 with neck AVMs) by using Onyx delivered through the lumen of Scepter-C or Scepter XC coaxial balloon microcatheters. Following the initial balloon-catheter navigation into a feeding artery and the subsequent inflation of the balloon, the embolization was performed by using Onyx 18, Onyx 34, or both. RESULTS: A total of 12 embolization sessions were performed via 17 arterial feeders in these 7 patients. In 1 patient, there was an arterial perforation from the inflation of the balloon; in all others, the embolization goals were successfully achieved with no adverse events. CONCLUSION: The balloon microcatheters showed excellent navigability, and there were no problems with retrieval or with the repeated inflation and deflation of the balloons. A proximal Onyx plug, which is crucial in many AVM embolizations, was not necessary with this technique. Additionally, fluoroscopy and procedural times seemed lower with this technique compared with conventional embolization methods.

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