Patient data

Patient, Aneurysm Location and Size*CalcificationThrombusMass EffectTx/Repeat TxExaminations after First TxNew LesionFollow-Up Angiography#Recanali- zation**MRA††
  CT§MR Imaging
1, R sc ICA, giantYesYesYesOnyx16/ Onyx20 + S23 (M)NoYesYesYes
2, R cav ICA, giantYesNoYesOnyx20 + S/none23 (M)NoYesNoYes
3
 R cav ICA, smallNoNoNoOnyx20/onyx2022 (NI)NoYesYesYes
 R cav ICA, smallNoNoNoOnyx20/none22 (NI)NoYesNoYes
4, R pcav ICA, giantNoYesYesOnyx20 + S/none11 (M)AsymptomaticNoNANo
5, L cav ICA, largeNoNoNoOnyx20 + S/none12 (H)NoYesNoYes
6, R sc ICA, smallNoNoNoOnyx20/none11 (H)NoYesNoYes
7, R sc ICA, smallNoNoNoOnyx20/none12 (H)NoYesNoYes
8, L cav ICA, largeNoNoNoOnyx20 + S/none12 (M)NoYesNoYes
9, L sc ICA, smallNoNoNoOnyx20/none11 (H)AsymptomaticYesYesYes
10, L cav ICA, smallNoNoNoOnyx20/none11 (NI)NoYesNoNo
11, L pcav ICA, giantYesYesYesOnyx16/onyx20 + S12 (M)NoYesYesNo
12, R cav ICA, giantYesYesYesOnyx20 + S/none12 (M)NoYesNoYes
13, L sc ICA, largeNoNoNoOnyx20 + S/none10 (NA)HemorrhageNoNANo
14
 Basilar tip, largeNoYesYesOnyx16/none10 (NA)NoNoNANo
 R sup cb, smallNoNoNoOnyx16/none10 (NA)NoNoNANo
15, L sc ICA, largeNoNoNoOnyx20 + S/none12 (H)NoYesNoYes
16, R p ICA, smallNoNoNoOnyx20 + S/none11 (H)NoNoNANo
17, L sc ICA, giantNoNoNoOnyx16/none11 (H)WS ischemiaYesNoYes
18, R cav ICA, giantYesYesNoOnyx20 + S/none10 (NA)WS ischemiaNoNANo
19, R cav ICA, giantNoYesNoOnyx16/none20 (NA)NoYesYesNo
20, R cav ICA, largeNoNoNoOnyx16/none20 (NA)NoYesNoNo
21, R sup cb, giantYesYesYesOnyx16/none12 (M)AsymptomaticYesYesNo
22, R sc ICA, giantYesYesYesOnyx20/onyx20 + S32 (M)NoYesYesYes
23
 L sc ICA, giantNoNoNoOnyx20/none10 (NA)NoYesNoNo
 R cav ICA, smallNoNoNoOnyx20/none10 (NA)NoYesNoNo
 R sc ICA, smallNoNoNoOnyx20/none10 (NA)NoYesNoNo
24, R sc ICA, smallNoNoNoOnyx20/none10 (NA)NoNoNANo
25, L cav ICA, largeNoNoNoOnyx20/none10 (NA)NoNoNANo
26, R pcav ICA, largeNoNoNoOnyx20 + S/none01 (M)NoYesNoYes
27, R cav ICA, giantNoNoYesOnyx16/none11 (M)Transient CCFYesNoNo
28, R cav ICA, giantNoNoYesOnyx20 + S/none12 (M)AsymptomaticYesNoYes
29, R cav ICA, giantNoNoYesOnyx20 + S/none01 (M)NoYesNoNo
30, R sc ICA, largeNoNoNoOnyx20/none11 (H)AsymptomaticYesNoYes
31, R cav ICA, smallNoNoNoOnyx20/none01 (NI)NoYesNoYes
32, R sc ICA, giantNoNoNoOnyx20 + S/none12 (H)AsymptomaticYesNoYes
33, R sc ICA, largeNoNoNoOnyx20/none11 (H)AsymptomaticYesNoNo
34, L sc ICA, largeNoNoNoOnyx20/none11 (H)NoYesNoYes
35, L pc ICA, largeNoYesNoOnyx20/onyx20 + S11 (M)NoYesYesNo
36, L sc ICA, largeNoNoYesOnyx20/none10 (NA)NoYesNoNo
37, L sc ICA, smallNoNoNoOnyx20/none02 (H)NoYesNoYes
38, L sc ICA, giantNoYesYesOnyx20/none12 (M)AsymptomaticYesNoYes
39, L pc ICA, largeNoNoNoOnyx20/none01 (M)NoYesNoNo
40, R sc ICA, giantNoNoNoOnyx20/none02 (M)NoYesNoYes
41, L sc ICA, giantNoNoYesOnyx20/none10 (NA)NoYesNoNo
42, R sc ICA, largeNoNoYesOnyx20/none12 (H)NoYesNoYes
  • * Patients 13 and 14 died after receiving the treatment relevant or irrelevant to the endovascular therapy. Aneurysms in the following patients contained previously placed GDCs: 14 (basilar tip aneurysm), 19, 21, 38. Abbreviations: cav indicates cavernous segment; p, petrous; pcav, petrocavernous segment; sc, supraclinoid; and sub cb, superior cerebellar artery.

  • In patient 22, edema around the aneurysm increased after treatment.

  • Onyx16 indicates 16% Onyx (16% EVOH, 84% DMSO); Onyx20, 20% Onyx (20% EVOH, 80% DMSO); and S, stent.

  • § In the following patients, the aneurysm was not completely filled with the polymer, as shown on the posttreatment CT scans: 1, 11, 12, 16, 19, 21, 22, 27, 28, 30. That is, the polymer was not cast in the exact shape of the aneurysm.

  • Data in parentheses are the MR appearances. H indicates hypointense; NA, not applicable because MR studies were not available; NI, not identified due to the small size; and M, mixed signal intensity.

  • Lesions appearing after treatment. CCF indicates caroticocavernous fistula; WS, watershed.

  • # Follow-up angiography performed in the third month and/or at 1 year. (Simultaneous control examinations for sectional imaging were performed within 2 days.) No indicates that selective angiography had not been performed yet or that images were not available. That is, the treatment was recent and control imaging had not yet been performed or the patient had refused. Two patients died after treatment and did not undergo control angiography.

  • ** Recanalization detected during selective control angiography.

  • †† In the following patients, MRAs showed that the parent artery had decreased in diameter: 1, 2, 5, 8, 12, 26, 28, 40. In the following patients, MRAs, showed that the parent artery had no apparent signal intensity: 15, 17, 32, 38. In the following patients, MRA results were comparable to those of selective angiography: 3, 6, 7, 9, 17, 22, 30, 31, 34, 37, 42.