HIFU treatment time reduction in superficial tumours through focal zone path selection

Abstract

HIFU treatment times can be significantly reduced by taking advantage of axial temperature superposition in tumours. Further reductions are obtained by correct choice of the transverse scan path.

Temperature–density hysteresis in X-ray CT during HIFU thermal ablation: Heating and cooling phantom study

“…Currently MRI is the most common image modality used for thermal monitoring of HIFU treatments [3][4][5][6][7]. Ultrasound is also used for such purpose [8], and new monitoring methods by theoretical models are being examined [9,10].…”

Non-invasive temperature monitoring and hyperthermic injury onset detection using X-ray CT during HIFU thermal treatment in ex vivo fatty tissue

“…In recent years, HIFU treatments for non-invasive tissue ablation have become prevalent in many applications, most notably for the treatment of breast neoplasms that are often surrounded by fatty tissue [22,23]. The main technical challenge for these types of treatment is the difficulty in obtaining non-invasive thermal monitoring during the process.…”

Frequency considerations for deep ablation with high‐intensity focused ultrasound: A simulation study

“…Many attempts have been made to reduce treatment time by addressing various aspects of the procedure both in silico and in vivo. [17][18][19][20][21][22][23][24] In vivo uterine fibroid ablation requires consideration of highly variable perfusion levels 25,26 and the location of sensitive structures like the bowel and the nerves near the spine. 10,12 However, the primary rate-limiting factor in fibroid ablation is the amount of time the operator must wait between sonications to prevent thermal damage to the intervening near-field.…”

“…10,12 However, the primary rate-limiting factor in fibroid ablation is the amount of time the operator must wait between sonications to prevent thermal damage to the intervening near-field. 14,18,21,[27][28][29][30] This problem is generalizable to other large, deep targets for thermal surgery though parameters for fibroids are examined in this paper as they are most immediately relevant.…”