dcsrdump: command not found

Maybe Your $PATH variable doesn't contain the default paths? echo $PATH should give something like:

[root@server ~]# echo $PATH
/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin

If it's empty, You may set the PATH variable with this command

export PATH="/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin"

On Debian possible default full paths are:

/usr/bin/dcsrdump - from package: dicom3tools

You may install the required package with command apt-get install {package}

Error in other languages:
dcsrdump: bevel nie gevind nie
dcsrdump: comandă negăsită
dcsrdump: comando não encontrado
dcsrdump: commande introuvable
dcsrdump: command not found
dcsrdump: käsku ei ole
dcsrdump: không tìm thấy lệnh
dcsrdump: komanda nerasta
dcsrdump: Kommando nicht gefunden.
dcsrdump: kommandot finns inte
dcsrdump: komut yok
dcsrdump: nie znaleziono polecenia
dcsrdump: níor aimsíodh an t-ordú
dcsrdump: no se encontró la orden
dcsrdump: no s'ha trobat l'ordre
dcsrdump: opdracht niet gevonden
dcsrdump: parancs nem található
dcsrdump: perintah tidak ditemukan
dcsrdump: príkaz nenájdený
dcsrdump: příkaz nenalezen
dcsrdump: команда не найдена
dcsrdump: командата не е открита
dcsrdump: 命令找不到
dcsrdump: コマンドが見つかりません