The phrase "a persistent enhancement" is correct and usable in written English.
It can be used to describe an ongoing improvement or increase in quality, effectiveness, or performance over time.
Example: "The company has implemented a strategy focused on a persistent enhancement of its customer service to ensure satisfaction."
Alternatives: "a continuous improvement" or "an ongoing upgrade".
The lesion shows spiculations and a persistent enhancement curve type, corresponding to a Kaiser score of 6 (Fig. 6).
The lesion shows no spiculations, a persistent enhancement curve type, and irregular margins, corresponding to a Kaiser score of 3 (Fig. 6).
The lesion shows no spiculations, a persistent enhancement curve type, and circumscribed margins, corresponding to a Kaiser score of 1 (Fig. 6).
A leading candidate in the process of memory formation is hippocampal long-term potentiation (LTP), a persistent enhancement in synaptic strength evoked by the repetitive activation of excitatory synapses, either by experimental high-frequency stimulation (HFS) or, as recently shown, during actual learning.
Mucinous carcinoma is characterized by rim enhancement with a persistent enhanced pattern with a rich mucin pool at the center of a tumor on dynamic MRI imaging(22) and a poor response to chemotherapy.
Fig. 4 CTA axial views of a clinically brain-dead patient with a craniectomy and no opacification of the SPV (a) despite persistent enhancement of the bilateral C-MCA (b).
Concerning the pro-inflammatory cytokines secretion, mainly IL-1β induced a significant and persistent enhancement of IL-6 and IL-8 in PBMCs carrying the S59P mutation.
Open image in new window Fig. 3 A 72-year-old woman with a right renal oncocytoma demonstrating persistent enhancement in the nephrographic phase.
Similarly, persistent enhancement of a proximal segment when most of the contrast has washed out from the distal segments is not normal.
On the other hand, dynamic information has shown great potential for quantifying tumour vascularity [6, 7, 8]: malignant lesions usually show early enhancement with rapid washout, whereas benign lesions typically show a slow increase followed by persistent enhancement [6].
Residual disease was defined as persistent enhancement in an area of tumour after RFA seen on imaging at least 1 month after treatment.
