Lesion Location

Overall, however, secondary cataplexies are associated with specific lesions located in the lateral and posterior hypothalamus, involving the HCRT/orexin neurons. 

FLAIR is an inversion recovery sequence with long repetition and echo times and an inversion time that is tailored to null the signal from CSF. Most pathologic processes including LA show increased signal intensities on T2-weighted images and the conspicuity of lesions located close to interfaces between brain parenchyma and CSF may be poor (Rumboldt and Marotti 2003). Additionally, the... 

Recently, using color-coded diffusion tensor imaging five different patterns of corticospinal tract stroke were identified that fall into two clinical subgroups with either little recovery or good recovery. Patients with poor motor recovery had lesions centered in the pyramidal tract (anterior choroidal artery). Patients with good recovery had either very small lesions or lesions located anteriorly or medially (Lie et al. 2004). 

Bhogal SK, Teasell R, Foley N et al. (2004). Lesion location and poststroke depression systematic review of the methodological limitations in the literature. Stroke 35 794-802... 

One of the major reasons why outcome may not be correlated strongly with lesion volume is that volume measures do not take account of variations in lesion location or shape. Recently, evidence has been produced to suggest that the clinical consequences of an ischemic lesion can be predicted if damage and outcome are measured within a specific functional system (Fig. 23.1) (Binkofski et al. 1996 Pineiro et al. 2000). 

Lesion Location Pupil Responses Anisocoria Field Nerve Defects Head Near Reflex Oculomotor Involvement Accommodation Disease or Syndrome... 

The above-lesion EMG-based menu selections employ surface-EMG signals fi om electrodes placed at above-lesion locations on the patient s chest. The thus obtained EMG signal (see Figure 31.8) serves to map a pattern of upper-trunk posture that has been shown [5,7,27], to predict intended body function, corresponding to the four menus above (stand, left step, right step, and sit menus), with an accuracy of better than 99.8%. In this case, no finger controls are needed. 

Fig.7.7a,b. Tumoral nodules with a good correlation between MAA distribution and lesion location, but the 3D images reveal moderate uptake in the gastric walls, not visible in the planar scintigraphy due to organ superposition, thus contraindicating radiospheres treatment (a). Transaxial slices with diffuse uptake in the gallbladder (b)... 

Attenuation in bremsstrahlung images is strong and almost impossible to compensate. This may lead to the erroneous observation of insufficient therapeutic uptake in lesions located in central areas of the liver (Fig. 8.5). 

Macciocchi, S.N., Diamond, P.T., Alves, W.M., and Mettz, T. (1998) Ischemic stroke relation of age, lesion location, and initial neurologic deficit to functional outcome. Arch.Phys.Med. Rehabil., 79 1255-1257. 

Early stage neoplasms and polyps, particularly if small in size, are usually detected with lower accuracy. Detection and staging of rectal cancer are frequently underestimated and lesions located in the transverse colon and in both colonic flexures may be difficult to... 

Adenomyoma may rarely present as round lesion located away from JZ... 

To help the gynecologist to determine optimal treatment choices, preoperative knowledge of all lesion locations is mandatory. A complete preoperative lesion map allows scheduling of concomitant bowel, bladder or vaginal surgery and avoid intraoperative diagnoses of lesion location that postpone complete lesion removal at surgery. 

Lesion location refers to the standardized colonic segmental divisions of rectum, sigmoid, descending, transverse, ascending and cecum. 

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