Sequence of pictures from an intraoperative videotape

Slides:



Advertisements
Similar presentations
Lateral skull radiograph performed in our patient at age 4 years shows cystoperitoneal shunt connected to a VP shunt via a Y connector (dashed arrow, reservoir.
Advertisements

Ruptured PICA aneurysm in a 62-year-old man presenting in poor clinical condition. Ruptured PICA aneurysm in a 62-year-old man presenting in poor clinical.
Precontrast coronal T1-weighted view shows metastatic nodules (long arrows) from breast cancer in the vicinity of the left BPL and another metastatic mass.
A 50-year-old man with MD. Axial thin-section CT image shows decreased distance between the vertical limb of the posterior semicircular canal and the posterior.
123I/Tc-99m sestamibi subtraction scan (top left); neck sonogram in region of cystic mass (top right); axial arterial phase CT scan (bottom left); and.
Right carotid angiogram (A) demonstrates a small carotid cave aneurysm in a patient who had an anterior communicating artery aneurysm previously treated.
A and B, Sagittal (A) and axial (B) fast spin-echo images of the cervical spine before treatment demonstrate diffuse increase in signal intensity (arrows)
A, Sagittal T2WI MR image demonstrates a focal dorsal indentation (arrow) in the thoracic spinal cord. A, Sagittal T2WI MR image demonstrates a focal dorsal.
Two angiographically occult additional microaneurysms adjacent to a ruptured posterior inferior cerebellar artery aneurysm in a 53-year-old woman. Two.
Histology samples stained with Masson trichrome.
Image shows appearance of septum within dural sinus in a 68-year-old woman with normal results of an MR imaging examination. Image shows appearance of.
A 39-year-old man with Hunt-Hess grade 1 subarachnoid hemorrhage
Pretreatment 2D (A) and 3D (B) images show an irregular right MCA aneurysm with a bleb. Pretreatment 2D (A) and 3D (B) images show an irregular right MCA.
A, Measurement of the angle between the TS-OP line and the hard palate in the lateral scout view of the brain CT (black arrow). A, Measurement of the angle.
A, Axial source image from a contrast-enhanced MRA unambiguously demonstrates a tiny (
Preoperative 3D angiogram (A) shows a very wide-neck large ICA aneurysm. Preoperative 3D angiogram (A) shows a very wide-neck large ICA aneurysm. It could.
Singular-energy magnitude and location at peak systole in aneurysm volumes (gray) of aneurysm 1, 2, 3, and 5 for 3D PC-MR imaging; CFD with inflow boundary.
49-year-old man with sudden headache and dysphasia and frontal hematoma on CT scan. 49-year-old man with sudden headache and dysphasia and frontal hematoma.
A 68-year-old woman presenting 18 days after SAH from PICA aneurysm.
Velocity vector images in a characteristic section depicting the main vortex in 4 aneurysms and the inflow jet in 3 of the aneurysms. Velocity vector images.
A 7-month-old boy with left hemimegalencephaly
Construction of the wide neck aneurysm model
Comparison of conventional (A) and KRISP (B) FLAIR images (8142/135/1; TI = 2250) at the level of the pons. Comparison of conventional (A) and KRISP (B)
42-year-old male patient with follow-up neck CT for lymphoma at 70 kVp (A) and corresponding previous CT at 120 kVp (B). 42-year-old male patient with.
Venous diverticulum in a 69-year-old man with long-standing right-sided pulsatile tinnitus. Venous diverticulum in a 69-year-old man with long-standing.
CT perfusion maps of MTT
Photomicrograph showing a polypoidal mass that is lined by benign squamous epithelium (short arrow) with proliferation of granulation tissue in the underlying.
T2-weighted images of a patient with an infarction within the anterior MCA branch territory on day 5 (patient 15) show high SI changes within the ipsilateral.
Photographs and pathologic sections of neointima at the coil surface
Electron microscopic view shows one tumor cell with a round regular nucleus (N), peripherally clumped chromatin (short arrows), and surrounding small amount.
Type 1 pedicle marrow signal intensity changes and associated soft tissue hyperintensity on T2- and STIR-weighted sequences associated with pars fractures.
AP (A) and lateral (B) radiographs demonstrating a discontinuous segment of the catheter, with broken catheter ends in the subcutaneous tissue of the lower.
A, Lateral radiograph of the spine showing a moderately compressed vertebra (black arrow).B, Postvertebroplasty, there are large leaks of cement (black.
Optic glioma.A, Sagittal spin-echo image (TR, 643 ms; TE, 12 ms) shows markedly enlarged optic nerve (arrow).B, Axial fast spin-echo (TR, 6000 ms; TE,
A 65-year-old man with an unruptured anterior communicating artery aneurysm. A 65-year-old man with an unruptured anterior communicating artery aneurysm.
Benign peripheral nerve sheath tumor of the sciatic nerve shows the typical split fat sign (arrow) on coronal T1 (A), target sign (short arrow) on coronal.
3D TOF MR angiograms.A, Angiogram of the circle of Willis with the complete anterior configuration shows the AcoA (arrow).B, Angiogram of the circle of.
A 41-year-old man and his son had positive genetic testing for LDS type 1 after he had intracranial hemorrhage as a complication of dissection and some.
Axial T2-weighted MR imaging at the level of the internal auditory canals, demonstrating a large, homogeneous mass filling the right internal auditory.
Four more examples of missed additional aneurysms on DSA
A,B. A,B. Contrast-enhanced CT scan of the neck demonstrates extensive soft tissue edema. At the level of the vocal cords, there is a linear attenuation.
28-year-old man with an aneurysmal SAH
Results of aneurysm treatment with flow modification only.
Graph of neurologic scores (mean ± SD) for the moderate-severe VSPdelayed group, mild VSPdelayed group, and sham group. Graph of neurologic scores (mean.
Three patients with incidental thyroid nodules that were similar in size but were reported differently. Three patients with incidental thyroid nodules.
Schematic drawing of the SONIC detachable tip
A, Coronal enhanced MR image of an IAC meningioma demonstrates intense enhancement of the intralabyrinthine structures (curved white arrow). A, Coronal.
30-year-old man with subarachnoid hemorrhage at presentation in 1994.
Histopathologic specimens of a well-differentiated and malignant astroblastoma.A, Well-differentiated astroblastomas are composed of astroblastic pseudorosettes,
Bone algorithm CT images from the same case, demonstrating focal enlargement of the right tympanic segment, in the axial (left) and coronal (right) planes.
DSA and contrast-enhanced MRA show concordant findings
Radiation therapy-induced cyst 89 months after AVM treatment
Acquired cephaloceles, surgical.
32-year-old man with a recurrent episode of left-sided neck infection.
MR images of the brain (axial sections, fluid-attenuated reversion recovery sequences) show the symmetric hyperintensities (arrows) involving the pyramidal.
A–C, DWI scan (A) shows acute (hyperintense) infarction in the left frontal region. A–C, DWI scan (A) shows acute (hyperintense) infarction in the left.
Fig 3. Plastic tubing (thin arrow) and needle (crossed arrow) are connected to the syringe. fig 3. Plastic tubing (thin arrow) and needle (crossed arrow)
Detection of aneurysmal neck remnant
Axial T2-weighted MR image shows normal flow void in the right internal jugular vein (arrows), whereas flow-related enhancement can be seen in the left.
Intraoperative images show a typical pearly appearance of a cholesteatoma (arrow, A), in the aditus ad antrum, next to the posterior wall of the EAC (dashed.
Number of white streaks for the cobalt-containing alloy (upper, black lines) and titanium clips (lower, white lines) scanned in high mode (H) (open symbols,
Pseudoaneurysms demonstrated by femoral arteriography and sonography.
Initial 3D reconstruction image of rotational angiogram (A) shows small wide-neck MCA trifurcation aneurysm. Initial 3D reconstruction image of rotational.
A, Axial T2-weighted image reveals thickening of the cortical gray matter at the medial aspect of both frontal lobes, compatible with bifrontal cortical.
Diagram of the functional vascular anatomy of the head and neck with the 3 major extracranial–intracranial anastomotic pathway regions: the orbital, petrous-cavernous-clival,
Tilted head position for intracranial CT angiography in a patient who has undergone clipping of a single aneurysm. Tilted head position for intracranial.
A, Axial CT in an 80-year-old man with sensorineural hearing loss shows deep intrusion into the vestibule (arrow). A, Axial CT in an 80-year-old man with.
HRCT scan, coronal view. HRCT scan, coronal view. A, Pars flaccida cholesteatoma (arrow) filling the Prussak space. Notice the erosion of the scutum (dashed.
Two cases with Sylvian fissure SAH
Unenhanced high resolution bone window CT scans of the neck show the heavily ossified styloid process in the axial plane. Unenhanced high resolution bone.
Presentation transcript:

Sequence of pictures from an intraoperative videotape Sequence of pictures from an intraoperative videotape.A, An aneurysm clip is held in the open position across the neck of the aneurysm (small arrow). Sequence of pictures from an intraoperative videotape.A, An aneurysm clip is held in the open position across the neck of the aneurysm (small arrow). The microcatheter protrudes through the aneurysm neck (large arrow).B, The microcatheter is withdrawn from the aneurysm (arrow); this results in a brief spurt of hemorrhage from the hole in the aneurysm neck (arrowhead).C, The aneurysm clip is released, with resultant decompression of the aneurysm (arrow). John G. Short et al. AJNR Am J Neuroradiol 2002;23:682-685 ©2002 by American Society of Neuroradiology